Swing Vision AI line calls and Analysis

onceascottie

New User
@swupnil
I suspect an Android app is currently low priority because there are very few Android devices capable of the video processing required. However, I know many players with Android phones who might be satisfied with an Android SwingVision Lite app. This could be a way to expand your user base, especially internationally where Android dominates, until the hardware catches up.

I'm not a programmer, but I would guess the basic easy to port functionality to attract Android users would be:
Viewing public feed
Viewing tagged videos and match stats recorded/processed by another user
Record their matches in app and upload (without any shot processing)

When Android phones become more capable, you already have a user base to invest more development time on a full featured Android app and WearOS/TizenOS app
 

onceascottie

New User
Received this in an email today:

Phone Mount Bundle

For a limited time, you can now get 1 Year of SwingVision Pro + the QM-1 Phone Mount for as little as $159.99 ($100 off!) when you subscribe via our website.

This new bundle offer includes the following:
  • 30-Day Money Back Guarantee
  • 30 hrs/mo of 60fps x 1080p Video
  • Unlimited Cloud Storage for Life
  • Optimal Shot Tracking Accuracy, Indoors & Outdoors
  • A.I. Scoring, Match Stats & Line Calling
  • Accidental Damage Protection (1 mount replacement per year)
Existing Pro subscribers can take advantage of our offer too! Just reply to this email to migrate your subscription.

Is the 30 hrs/mo the new limit for all subscribers, or is this a new lower tier subscription bundled with the QM-1?
 
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Kamaran

New User
Posting here to help others.

I have a video which has been stuck at 99% upload for several days. I’ve tried restarting the app, phone, Wi-Fi etc, but it just states it is queued for upload.

Any ideas? I’ve raised a support ticket, sadly I seem to encounter frequent issues with upload.
 

onceascottie

New User
I saw this for new subscribers on https://swing.tennis/subscribe:

Pro Yearly
$129.99 $149.99
$149.99/yr starting in Year 2
14-day Free Trial
30 hrs/mo • 1080p
Cloud Storage for Life

BEST DEAL!
Phone Mount + Pro Yearly
$199.99 $259.99
$149.99/yr starting in Year 2
30-Day Money Back Guarantee
30 hrs/mo • 1080p
Cloud Storage for Life
Accidental Damage Mount Protection
Up to 1 accidental damage replacement per year

Want another $40 off? Get our Optimal Setup Discount by logging into the SwingVision app on an iPhone 11 (or newer) and installing the app on a paired Apple Watch.

@swupnil Do existing subscribers remain grandfathered at 60hrs/mo? It might be nice for early adopters to continue to receive up to 60 hours/mo as long as they continue to renew each year.

Also, what are the terms of the $40 off and how does it get applied? I have an iPhone 12 paired with an Apple Watch.
 
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tlsmikey

Rookie
What has the experience been uploading videos for folks?

I tried this app a long time ago when it first came out and I tried uploading a set worth of video and it took hours before it was fully uploaded. Has the upload speed improved?
 

Kamaran

New User
Speed is not too bad on a fast connection, the problem I’m having is they often get stuck. I’m currently waiting for support to resolve my latest issue from last Wednesday.
 

luke_1983uk

Semi-Pro
Yeah I experience the dreaded pause in the upload, some days it takes days, my friend has one that's now taken a month to upload, this really is a issue with the app that needs looking at, it actually drives me crazy.

Aside from that the app is a absolute game changer and I can now no longer be without it.

My friends even get live notifications of set scores which is pretty damn cool
 

silverwyvern4

Semi-Pro
What has the experience been uploading videos for folks?

I tried this app a long time ago when it first came out and I tried uploading a set worth of video and it took hours before it was fully uploaded. Has the upload speed improved?
Since recent update, can upload about 2 hours of matches in 90 minutes on wifi
 
When tracking my stats only on the Apple Watch, I notice the top speed of my shots changes after maybe a day. When the data is initially processed it may say my serve speed was 78 MPH. If I check it the next day, it always goes up 2-4 MPH. I'm just curious why that may be.

One suggestion would be to enable going frame by frame using the keyboard keys, either right and left arrow or , and . keys on the Mac App. When I am reviewing my shots, sometimes I want to step through the frames
 
I’m having some accuracy concerns with this app.

especially as it relates to correctly registering serve location heat map and line calls for the serves.

I’m currently using a MD Sporting Solutions tennis mount to mount my IPhone SE first edition.
Generally speaking my phone is located high enough on the fence that the opposite court serve line is below the net.


Is it a matter of my phone/phone camera not being “good” enough to register shots correctly?
Or do I need to work on my phone’s location
 

2ndServe

Hall of Fame
Looking to buy a tripod selfie stick either to just put at the back of the fence or to hang on the fence. What is the ideal height for the phone to be at? is 67 inches too low? Thanks
 
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swupnil

Rookie
Sorry for the delays, everyone! Was out taking my first vacation in over 2 years :X3:

@onceascottie yes we are working on a more basic Android app. Most of what you mentioned is already available on the website so we’ve seen lots of Android folks using that and signing up there. Also the Pixel 6 and S22 seem very promising for real-time processing!

We’ve changed limits to 30 hrs/mo as the vast majority of folks don’t go above that, but we’re happy to grandfather old subscribers. Just shoot me a DM with your username in the app and we’ll hook you up :)

For the $40, you just need to update to the latest version of the app so that it’ll let us know what devices you have. Then just log into the same account on web and you should see the discount unlocked. If you’re still not seeing the discount, please DM me!

@Kamaran sorry about that! Are you still stuck there? March has been completely dedicated to improving the video upload experience and you should see some MASSIVE improvements in April. (cc @tlsmikey @luke_1983uk)

@happyloman we can do that manually. Please DM me the link to the session and what session type / name you want on it.

@not_too_shabby that’s so weird about the watch sessions. I’m not sure why that would be but we’ll look into it! And yes frame by frame is in the pipeline for Q2!

@Lazuras_Long your setup sounds fantastic hmm. Can you DM me a link to a recent session and point out the timestamps / shot numbers where you’re seeing issues? I can have the A.I. team investigate.

@tennis doggo are you exporting on Mac? Unfortunately the overlays don’t work on mac exports but we’re working with Apple to get this resolved in a future update. You’ll need to export from and iPad/iPhone until then.

@2ndServe yep 60” and above is fine. For optimal accuracy you will want to mount the device on top of the fence. We have a bundle deal right now where you can get the optimal fence mount we recommend (and our subscribers consistently rate the highest) for as little as $10 when you subscribe via our website :)
 

vronp

New User
Hi all,

I just installed the app and just love it. I'll be signing up today. I do have a technical question however. I apparently initially configured my profile incorrectly as left handed. This was fixed and everything looks correct in the forehand/backhand video analysis on the phone app. HOWEVER, when I create a shareable link for the forehand analysis (as an example), the link video shows the forehands but the counter is registering backhands. The same "reversal" occurs with the backhand analysis, perfect in the app but the shareable link shows it reversed.

I'm going to make a wild guess that the initial decoding of the raw video with the improper setting for "hand", and then me changing that setting, resulted in the glitch I am seeing in the shareable link video.

Would anyone be able to suggest a fix for this?

thanks,
Dave
 

swupnil

Rookie
@vronp glad to hear things are going well! There's actually nothing embedded in the video regarding handedness. You should be able to change this on your profile at any time, and the video playback will adjust. This sounds like it might be a bug with the web app - could you please DM me the link? Sounds like it should be a simple fix on our end once we can replicate it :)
 

vronp

New User
I sent you an example link. Is there a way I can start from scratch with the raw video? I need to share these link with some people and wanted it to be correct.

Thanks
 

2ndServe

Hall of Fame
this app is the best app I have used. Every time I use it I find something else I can customize or tweak and learn. Wish I could export it at .5x speed or something like that
 

theblueark

New User
this app is the best app I have used. Every time I use it I find something else I can customize or tweak and learn. Wish I could export it at .5x speed or something like that

I've been exporting and uploading to youtube. Then I can watch it on a big smart TV. On a PC I can easily slow down to 0.25x using the "<" and ">" keys, or even go frame by frame using "," and "."
 

theblueark

New User
@swupnil I was recording a session yesterday but forgot to clear my iphone's storage space!

Interestingly, the app managed to capture all the stats and shot placements, and even prompted me to tag the players.

I suspect it recorded most of the session, but ran out of space near the end. Would it be possible to salvage whatever was recorded? Or is the entire video corrupted?

This is what I see on the SwingVision link: https://swing.tennis/matches/sw2-rP8wvb4

Screenshot:
0cggR4J.png
 

2ndServe

Hall of Fame
I hastily entered the wrong score and didn’t put the right 10 pt tiebreaker. I haven’t clicked finish processing yet . The scores have a check mark. How do I go back and change the score and tag my friends for stats.

Can I export to another device for processing? I’ve got an older iPhone I use to record because it’s hot and sunny and don’t want to heat up my main phone. I’d like to export it to my iPhone max or iPad Pro to process as my older 7 takes forever to process


Thanks
 
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silverwyvern4

Semi-Pro
How does transcoding work? After I upload a video from my iphone, does a server immediately begin transcoding it for windows and Android or is there sometimes a queue of other users to process first? How long does it take to transcode say a 15 minutes 1080p 60fps 1 GB swing vision video?
 

swupnil

Rookie
@2ndServe technically the exports are 60fps as well so you should be able to slow them down depending on the software you’re using to play the expected file!

For the incorrect score you could DM me the link along with the correct score and we can update it. You can tap the Share Video button at the top of the session details to export the full raw video, which can then be airdropped to one of your newer devices.

By the way, I attach this umbrella to my fence mount and it does a nice job of protecting my iPhone 12 Pro :)

@theblueark bummer! My guess is that it’s not salvageable and did not save properly (even though the real-time analysis worked!). Could you DM me a link? We can take a look.

@silverwyvern4 yes there is a queue so the length of your video doesn’t matter. We’re working to spin up more resources so these can go faster. There’s roughly a 18 hour backlog at the moment but we’re working to scale this up!
 

Sardines

Hall of Fame
A friend used Swing Vision on our dubs match the other day and showed us some vids. In one particular instance, my half volley backhand hit 77mph, yet the next fullswing backhand winner, which was definitely faster, showed 55mph, I just laughed! My 1st serves, which Playsight clocks around 94-112mph, never touched 72mph. I've read some of these posts regarding the accuracy, and based on the 1-2 mins of video sent to me by my bud, I have to say the accuracy is not "10%" error. Has anyone tested this app on a Playsight court? I definitely wonder how it can record continuously for more than 15 mins in 4k 60p, when most phones go into meltdown mode at that data rate?
 
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swupnil

Rookie
@Sardines we’ve tested the app against multiple high speed cameras set up around the court, and that is where the 10% comes from. Please note that this is the average accuracy across all shots, so sometimes it’ll be worse and sometimes better. This is also assuming ideal conditions including setting up on top of the fence (rather than a tripod), using iPhone 11 or newer, recording at 1080p and using the standard 1x zoom on the camera. Id have to take a look at your session to give specific feedback or advice. It may very well be the case that we have accuracy issues in certain doubles scenarios that we need to look into. Id greatly appreciate if you could DM me a link to your session so we can take a look.

In terms of recording, we do this at 720p or 1080p (depending on your subscription tier) at 60fps. Across tens of thousands of accounts, folks have been able to record 2+ hours on the latest iPhones with no problem. Note that we don’t use internet at all - everything is processed on the device using the incredible A.I. hardware on the latest iPhones and iPads.

The one final thing I’ll mention is that we measure the average speed of the ball during the trajectory as opposed to the initial speed of the ball off the racket, which could be as much as 20% faster. We hope to add a conversion to initial speed in the app soon.

Overall, the A.I. has been improving tremendously in the last year, with our primary focus being shot placement. As that gets better, we will shift our focus to getting the ball speed accurate in all scenarios. It’s definitely been tough to prioritize given we’re such a small team with limited funding but we believe shot placement & line calling will bring greater value in the short term so that’s where we’ve focused our efforts thus far.
 
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Sardines

Hall of Fame
Iphone 13 Pro Max, hung up on the back of the fence with one of those fence mount sticks. I would think without a standard setup in terms of court dimensions, angle of view and calibration for the app to crunch data, the basic principle of Speed=distance/time calculation is done by pixel comparison/counting estimation. Even with adjustment estimations of angle of view, the outcome would be a lot less accurate than 10% overall. And that to me is why I had to post about the speed accuracy. I'd be hard pressed to image any cellphone chip being able to compensate accurately discerning distance travelled via pixel counting, especially off of 720p resolution, off the X and Z axis, which is actual distance?
I'd also be interested to see data on the line calls accuracy, given the resolution of 720/60p or even 1080/60p on the 26mm lens of the iPhone, with pixel binning etc distorting diagonal lines. How much variability can a setup be to get accurate results? How accurate are those results for 720p vs 1080p?
Of course, your app is probably most suitable for shot placement, from what I saw of the few minutes of video, I'd say it generally is pretty decent. And even basic aggregated statistical data on placement area, even with a very loose margin of error, is a good thing to have for any player looking to improve. If I were a developing junior or competition player, I'd pay fpr your app for that alone, if I did not have access to Playsight courts.
@Sardines we’ve tested the app against multiple high speed cameras set up around the court, and that is where the 10% comes from. Please note that this is the average accuracy across all shots, so sometimes it’ll be worse and sometimes better. This is also assuming ideal conditions including setting up on top of the fence (rather than a tripod), using iPhone 11 or newer, recording at 1080p and using the standard 1x zoom on the camera. Id have to take a look at your session to give specific feedback or advice. It may very well be the case that we have accuracy issues in certain doubles scenarios that we need to look into. Id greatly appreciate if you could DM me a link to your session so we can take a look.

In terms of recording, we do this at 720p or 1080p (depending on your subscription tier) at 60fps. Across tens of thousands of accounts, folks have been able to record 2+ hours on the latest iPhones with no problem. Note that we don’t use internet at all - everything is processed on the device using the incredible A.I. hardware on the latest iPhones and iPads.

The one final thing I’ll mention is that we measure the average speed of the ball during the trajectory as opposed to the initial speed of the ball off the racket, which could be as much as 20% faster. We hope to add a conversion to initial speed in the app soon.

Overall, the A.I. has been improving tremendously in the last year, with our primary focus being shot placement. As that gets better, we will shift our focus to getting the ball speed accurate in all scenarios. It’s definitely been tough to prioritize given we’re such a small team with limited funding but we believe shot placement & line calling will bring greater value in the short term so that’s where we’ve focused our efforts thus far.
 
The Swing Vision is a great app but needs some fixes. Cannot download shared content, AI for cutting videos is iffy, Costs too much per year for 1080p.
In any case I do use it and like the overall calls, ball speed and different video categories for stats.

 

swupnil

Rookie
@Tennis Aloha thanks for the feedback! You'll get much better accuracy if you mount the phone on top of the fence with our fence mount that we now sell directly in the app. As for downloading content, could you DM me links to matches that you're trying to download? You should be able to redownload any of your videos from the cloud. As for cost, 1080p footage costs us quite a lot to back up in the cloud, twice as much as 720p footage. Each match is around 10GB and we provide unlimited storage, for life, so from that perspective we are cheaper than iCloud for just video storage alone.

@Sardines all I can really say is that what we're doing is much more sophisticated than pixel counting (I previously built computer vision A.I. at Tesla). We have trained a neural network from thousands of shot trajectories and it is getting more accurate each week. We have calculated the 10% speed accuracy numbers by comparing the app's output to multiple high speed cameras triangulating the ball - I can assure you this accuracy number is correct across our data set, but variability in accuracy is possible across various setups, camera zoom, etc.

For line calling, on average we can now determine close calls (within 2cm of a line) more accurately than the players on the court. There are some obvious/easy calls where the A.I. is messing up but once we get those resolved, SwingVision will be more accurate than humans 100% of the time and you could use it similar to Hawkeye Live where it will make calls in real-time for you.

Ball speed in general is challenging, especially with the ball traveling directly away/towards the camera, but we are confident we will eventually get this accurate to around the same tolerance as a radar gun. Our team has been focused 100% on shot placement to get line calls as accurate as possible, but once that project is in a good spot, we will focus on getting other metrics like speed more accurate. It just hasn't been a big priority yet to be completely honest.
 
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silverwyvern4

Semi-Pro
When I go to share the video and I try to share the entire video instead of point by point, the link it gives me still ends up showing point by point for the person I send it to.
 

2ndServe

Hall of Fame
@Tennis Aloha thanks for the feedback! You'll get much better accuracy if you mount the phone on top of the fence with our fence mount that we now sell directly in the app. As for downloading content, could you DM me links to matches that you're trying to download? You should be able to redownload any of your videos from the cloud. As for cost, 1080p footage costs us quite a lot to back up in the cloud, twice as much as 720p footage. Each match is around 10GB and we provide unlimited storage, for life, so from that perspective we are cheaper than iCloud for just video storage alone.

@Sardines all I can really say is that what we're doing is much more sophisticated than pixel counting (I previously built computer vision A.I. at Tesla). We have trained a neural network from thousands of shot trajectories and it is getting more accurate each week. We have calculated the 10% speed accuracy numbers by comparing the app's output to multiple high speed cameras triangulating the ball - I can assure you this accuracy number is correct across our data set, but variability in accuracy is possible across various setups, camera zoom, etc.

For line calling, on average we can now determine close calls (within 2cm of a line) more accurately than the players on the court. There are some obvious/easy calls where the A.I. is messing up but once we get those resolved, SwingVision will be more accurate than humans 100% of the time and you could use it similar to Hawkeye Live where it will make calls in real-time for you.

Ball speed in general is challenging, especially with the ball traveling directly away/towards the camera, but we are confident we will eventually get this accurate to around the same tolerance as a radar gun. Our team has been focused 100% on shot placement to get line calls as accurate as possible, but once that project is in a good spot, we will focus on getting other metrics like speed more accurate. It just hasn't been a big priority yet to be completely honest.

Does front or back camera matter for ball speed estimates?
 

2ndServe

Hall of Fame
Which phones support a zoom out function? My 12 max can zoom out but it’s my main phone and I want to buy a spare phone for recording that supports zoom out. I think my older iPhones don’t support zoom out(I can’t get the entire court
 

swupnil

Rookie
@2ndServe iPhone 11/12/13 (base version, non pro) all have the ultra wide lens. If you absolutely need to use the lens though, I strongly recommend 13 Pro since the new wide angle lens is a major improvement in quality, and there will be a noticeable difference in shot tracking accuracy
 

La Pavoni

Rookie
@swupnil

I've had the same issue a couple of times now (iphone 13 and Apple watch SE).

I start a singles match (hit 'warm up' when warming up and then keep score on the watch after hitting 'start' when the match starts). We play our match. With one guy that I play with we normally finish and then warm down with a bit of hitting afterwards. I therefore end the match on my watch at the end of the match and then start a new 'Practice' session on the watch (which I won't do in future, as I'm only doing it to log the activity in apple fitness). This seems to always end in the video file not being found in the feed (it tries to process it on the phone, but just gets stuck on 'initialising' for ever). In the end I just end up deleting the session, so lose the video of the actual match.

Also, I'm sure it's due to an issue at the apple end, but it would be great to be able to start and end video sessions from the watch for multi-user sessions. I quite often do doubles sessions where we have 8 of us rotating in to 2 doubles matches on two courts. Having to unmount the phone and start a new session for each set with different participants can test the patience of some of the players.

Not expecting cures for either, but just thought that I would feedback.
 

Service Ace

Hall of Fame
@swupnil

This may seem like a nitpick but in the next update can you add a numerical count of the actual shots in and out? I see the percentages but if would be nice to see at a glance, for instance, 85 forehands in, 14 forehands out.
 

1HBHFTW

Rookie
@swupnil

This may seem like a nitpick but in the next update can you add a numerical count of the actual shots in and out? I see the percentages but if would be nice to see at a glance, for instance, 85 forehands in, 14 forehands out.
I like this too but there’s a pretty easy workaround. Just filter by shot to your FHs that were “in”, then you can see the total number you hit. Then remove the filter “in” and you can see the total (difference is obviously out/net)
 

1HBHFTW

Rookie
Does anyone else have a recurring issue where sometimes the "wheel scroll" on the apple watch doesn't work? Roughly half the matches I play it works great to record which points were 2nd serves, but the other half it randomly doesn't respond and I just end up having to record everything as a 1st serve (swiping left after each fault is very disruptive).

If anyone else has this issue, how do you fix when it happens? @swupnil have you heard this complaint in the past?
 

Uche

New User
@swupnil

Also, I'm sure it's due to an issue at the apple end, but it would be great to be able to start and end video sessions from the watch for multi-user sessions. I quite often do doubles sessions where we have 8 of us rotating in to 2 doubles matches on two courts. Having to unmount the phone and start a new session for each set with different participants can test the patience of some of the players.

Not expecting cures for either, but just thought that I would feedback.

Hey, have you tried tapping the orange Add Session button that appears at the top of the Apple Watch display when you end a session? It allows you to start a new session right there from the watch. And you can do this several times as you rotate your doubles matches. Only thing is you’re not able to edit the payer names at the tie you add each new session but you can always edit/update player names after when you’re doing all the tagging for those sessions. I hope that’s helpful.
 

Uche

New User
Does anyone else have a recurring issue where sometimes the "wheel scroll" on the apple watch doesn't work? Roughly half the matches I play it works great to record which points were 2nd serves, but the other half it randomly doesn't respond and I just end up having to record everything as a 1st serve (swiping left after each fault is very disruptive).

If anyone else has this issue, how do you fix when it happens? @swupnil have you heard this complaint in the past?

Can you explain to me the benefit of the crown scroll 2nd serve thing, I’ve never understood it or how it works and so I just use the swipe left to register a fault. I thought that was enough in terms of tracking faults etc.. is there a benefit to using the crown?
 

1HBHFTW

Rookie
Can you explain to me the benefit of the crown scroll 2nd serve thing, I’ve never understood it or how it works and so I just use the swipe left to register a fault. I thought that was enough in terms of tracking faults etc.. is there a benefit to using the crown?
The only benefit vs swiping left is that you don’t need to do anything between serves. For me swiping after a fault messes up my rhythm, and some of my opponents take like 1 second between first and second serves so I don’t have enough time to swipe for theirs either.

the downside is you don’t see double fault stats. It records every second serve point as being in even if they miss. But it tracks 1st serve and 2nd serve points won without the mid-serve swipe.
 

tlsmikey

Rookie
Swing Vision Users.

Is there a way to create a second profile in the app? I'd like to add my daughter in there and record her match, but I can't find a way to create a profile and set it up. Any tips?
 

Uche

New User
You can add her as a virtual friend. Tap the Add Friend button at the top in the app and then you can start to track her sessions. I hope that helps
 

Uche

New User
Swing Vision Users.

Is there a way to create a second profile in the app? I'd like to add my daughter in there and record her match, but I can't find a way to create a profile and set it up. Any tips?

You can add her as a virtual friend. Tap the Add Friend button at the top in the app and then you can start to track her sessions. I hope that helps
 

swupnil

Rookie
@La Pavoni sorry about that! Our newest update makes this more clear but the “Practice” button is for Watch only sessions. As others suggested here, you need to tap the orange Add Session button to start a new recording right from your watch. Maybe we should update this copy to “New Recording” ?

@Service Ace will think about that. We’re in the middle of redesigning the stats that are displayed and actually are trying to decrease the amount of data / numbers we show to simplify the experience a bit.

@1HBHFTW that’s very strange! First I’ve heard of this. Sounds like an Apple Watch issue and maybe something is stuck inside the Digital Crown?
 

Uche

New User
Maybe we should update this copy to “New Recording” ?

Perhaps you could run a poll on the ideal copy?

Personally I think the orange is a bit confusing as I associate it with an advisory message rather than something to action. I think I’d respond to green better, and maybe a video camera icon with TRACK NEW next to it.
 

Uche

New User
The only benefit vs swiping left is that you don’t need to do anything between serves. For me swiping after a fault messes up my rhythm, and some of my opponents take like 1 second between first and second serves so I don’t have enough time to swipe for theirs either.

the downside is you don’t see double fault stats. It records every second serve point as being in even if they miss. But it tracks 1st serve and 2nd serve points won without the mid-serve swipe.

I just tried this over the weekend and I'm a little confused. When I watch back the video it appears that it's essentially combining both serves into one. Every point is tagged as a second serve beneath the scoreboard regardless of whether you land the first serve or not. Is that correct? And as you said, all second serves are treated as in so there are no 1st serve stats at all and second serves are recorded as 100% for both players. So it tracks your serve points won/lost with no separation of 1st/2nd serve performance. Is that right, or am I doing it wrong?

I thought from what you said that the AI was able to provide data on 1st serve points won and 2nd serve points won all by itself.

But it tracks 1st serve and 2nd serve points won without the mid-serve swipe.

@swupnil When I enable the digital crown point tracking it gives me a choice between 2nd serve points won and just points won. Is points won just the same as swiping up/down on the watch screen? I feel like there is very little documentation about this feature (and oneor two others actually), is there anywhere users can go to learn more? For instance, what would be an ideal use case for this 2nd serve points won feature?
 
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