Tennis Warehouse Playtest: Maurten Test Collection

TW Staff

TW Staff

Administrator
Attention Talk Tennis Members:

We have a unique playtesting opportunity for you! We are offering a very limited playtest of one of the newest brands we carry, Maurten, that focuses on fueling the body during competition. This playtest will be with their Test Collection which includes 1 Drink Mix 320, 1 Drink Mix 160, 2 Gel 100, 1 Solid 160 and a water bottle. There is no caffeine in these and they are considered fueling (not energy). Additionally, Daniil Medvedev has been seen using it on court during his matches and it is very popular in the running and cycling worlds. This playtest is open to Talk Tennis members living in the contiguous US only.

You can find more info on the specific products on our page: https://www.tennis-warehouse.com/Maurten/catpage-MAURTEN.html

***For this playtest, we would require 4-5 training sessions of at least two hours each of singles or drilling (if doubles, it would need to be 3 hours or more). You will playtest 2 days of drink mix, 1-2 days of gels. And a training session were you consume a solid (bar) after. We will provide more specifics to those selected playtesters.***

Application period is now closed. Selected participants will be notified via email by Wednesday, September 9th.

We have a very, very limited quantity of the Test Collections to playtest. We select playtesters based on a number of factors, including message board participation and performance on past playtests.

Your review is due by Friday, October 23, 2026 by 5 PM PST.

Posting a full review by the deadline is necessary to remain in good standing for future playtests. Reviews lacking sufficient effort will resort in disqualification from the playtest program.

Include the following in your review:
Tennis experience/background:
Describe your playing style (i.e. serve & volley):
Describe your 4-5 hitting sessions and what you used (each session should be 3-4 sentences minimum)-
  •  Session 1-
  •  Session 2-
  •  Session 3-
  •  Session 4-
  •  Session 5 (Optional)-

Please answer the following questions (3-5 sentences minimum). There are some prompt questions in italics to help you.

Drink Mix-Specific Questions
  •  How did you like the taste and consistency?
  •  How easy was it to mix and drink during your training session?
  •  Did you notice a difference in your energy or able to maintain your level of play after consuming?
  •  After consuming, how did it feel in your stomach while playing?

Gel-Specific Questions
  •  How did you like the taste and consistency?
  •  How easy was it to open and consume during your training session?
  •  Did you feel it gave you a quick energy or more gradual?
  •  After consuming, how did it feel in your stomach while playing?

Solid (Bar) Specific Questions
  •  Was the bar easy to eat after a training session?
  •  What were your thoughts on the flavor/texture?
  •  How did it settle in your stomach?
  •  Did you feel like it helped you recover/refuel better than normal?

Overall Questions
  •  What did you think of the drink mix, gels and solid overall?
  •  Which was your favorite and least favorite (and why)?
  •  Did you notice any difference in your energy, endurance and focus levels over the course of the session?
  •  How does it compare to other nutrition products you have used?

Any Final Thoughts?

Thanks,
TW Staff

We will delete “request sent” emails, but encourage a lively “pre-game” discussion on the racquets.
_________________________________

What we look for in a playtester:

1) A user that is in good standing - no excess warnings on Talk Tennis
2) A user that is participating on the forum- we look for a participant that is actively participating/posting on the forum on a weekly basis and has at least 100 posts (although we do make exceptions)
3) A user that is participating in threads on the racquet forum and bonus points if it is in threads that are related to the racquet being playtested
4) Participation in a string playtest- we offer monthly string playtests that are much easier to get into. If you show great effort there, it will standout for the next racquet/shoe playtest
5) if you have playtested a racquet/shoe in the past- we look for good effort in the comments, turning in your review on time and actively participating in the thread throughout the playtest

We do try to spread the wealth, if you have participated in either a racquet/shoe playtest within the year, chances are you won't be selected for a racquet/shoe playtest (we do make an exception to the rule if we see a user that stands out, doesn't happen often). Each playtest contains a mix of users that haven't participated in a playtest before, users that haven't been selected in over a year and users that show exceptional effort in recent string playtests.
 
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I'd be curious what the feedback is like. Just going by the nutritional information labels as shown on the product, the potassium/protein to sugar/sodium ratio is quite low. I'd be all over this if they could have put more minerals and protein into these. Still interested in how the sugar in these products can be delivered faster than more conventional sources of carbs, though.
 
These products are quite different from a typical Gatorade and other sports drinks.
The key point is that it is primarily a carbohydrate-fueling product, rather than a high-electrolyte hydration drink.
I'm really curious to try this one. The carbohydrate formulation is one of the things that caught my attention. I'll be interested to see if I notice any difference in energy and endurance during longer tennis sessions.
 
I get severe cramps from playing tennis if I don’t take electrolytes. The ones sold at TW did nothing to prevemt cramps, and the most effective one I’ve found was Ekkovision electrolytes. I’d like to test this out and see.
 
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We are still in hot and humid summer days. Hope to test these out before Fall kicks in, with mild weather (less exhaustion).
 
d-quik said:
I'd be curious what the feedback is like. Just going by the nutritional information labels as shown on the product, the potassium/protein to sugar/sodium ratio is quite low. I'd be all over this if they could have put more minerals and protein into these. Still interested in how the sugar in these products can be delivered faster than more conventional sources of carbs, though.
Click to expand...
There is no need for protein during exercise. Electrolytes are also not needed nearly as much as people think
 
This is one that I've having a hard time not pulling the trigger on applying. I can commit to 2 hour training sessions on Fridays, but the number of sessions required would put me at least a month out. Also, as @ttgrinder stated above, we are nearing the end of summer. After summer conditioning, the fall tennis schedule is usually not as grueling even though it is more frequent. The next singles league that I might sign up for doesn't start until mid-late October. My biggest concern is duration of playtest....I'd hate to sign up and not be able to meet the requirement.

I think if it were at least 6 weeks after receipt, but preferably 8 weeks, I could reasonably expect to meet the requirements. I'm also into the 4th round of playoffs for Ultimate Tennis, so there's a chance that I'll have a long doubles match upcoming.
 
I’m in for the playtest! Thank you. It’s still miserably hot (and humid) in SoCal. Maurten products will be thoroughly tested.
 
I have been selected to the playtest!! Thank you tt TW Admin! It is still hot here in Portland. These Products will be tested well!
 
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Package received!

Lately, I’ve been having a hard time keeping my energy up after about two hours of play. There have been a few times when I was just too exhausted to keep going. I don’t play nearly as much as I used to, so it’s a little surprising to feel completely drained sometimes, even after a couple of fairly relaxed, non-competitive sets.

I was able to get my cramping issues under control with electrolytes that have a high salt content, so that’s been a big help. Now I’m hoping Maurten’s energy products can give me a boost and help me keep my energy up during longer sessions. Looking forward to seeing how they work!
 
Received the Package!

I’ve been looking forward to trying this. Lately, I’ve noticed that my energy level starts to drop during longer tennis sessions, especially once I get past the two-hour mark. Even when the matches aren’t extremely intense, I sometimes find myself feeling pretty drained toward the end and not able to maintain the same level of energy and focus.

I’ve been using electrolytes to help with hydration and have had good results, but I’m interested to see if adding Maurten’s energy products can help me maintain my energy during longer sessions.

I’m looking forward to testing these out in both practice and match play and seeing how they affect my energy, endurance, and recovery. Excited to get started!
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Haven’t had a chance to start testing out the products, yet. Recovering from the flu that’s taken lomger than expected to get better. Resting now to be fully able to play this weekend and test out the products.
 
mhkeuns said:
Did it help with maintaining the energy level after the two hour mark?
Click to expand...
I had a nice luch in the afternoon and then around 4 PM I played for 2+ hours and used the Maurten Drink Mix 160. The energy I got from it was more towards the end of the session and mainly after the 2.5 hours. One thing I noticed is, I was extra thirsty using the drink mix after couple of hours and also my mouth went very dry for few hours after I finished the drink.
Let me know if you feel the same when you use the Maurten Drink Mix 160.
 
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hisreekanth said:
One thing I noticed is, I was extra thirsty using the drink mix after couple of hours and also my mouth went very dry for few hours after I finished the drink.
Click to expand...
I did notice that I was more thirsty as well. For me there was not much delay, I felt thirsty from 15 minutes after the first zip of the Maurten.
 
As instructed, I took the Maurten Drink Mix 320 about two hours before playing, along with a couple of slices of bread. About 15 minutes before we started, I began drinking the Drink Mix 160 and finished it within the first hour of play. After that, I consumed about 1/4 of the amount of electrolyte drink I normally would for the remaining two hours.

The first hour started out with some light rallying and a few breaks in between. After a 15–20 minute warm-up, we moved into some 2-vs-1 drills and more competitive rallies, trading some pretty hard shots. Normally, I can get pretty worn out after the drills and longer, fast-paced rallies. When that happens, I usually need to take a decent break before I can keep going.

This time, though, I definitely noticed a higher level of energy and more pop in my legs. Even after two hours, I still felt like I had more energy than I normally would and was able to keep playing without that extreme fatigue setting in.

About an hour after we finished, I did notice my energy level drop and started feeling tired. The post-match bar was looking pretty tempting, but I’m saving that for the next session, when I’ll also be testing out the gels.

My initial impression is that this stuff works. It actually seemed to work even better for my cramping than my usual electrolyte drink. That said, I do think Maurten products are probably better suited for more serious tennis players who compete regularly, or even professionals. It was a little inconvenient for a lazy weekend hacker like me to fully follow the recommended fueling schedule. I’m usually the type who just grabs whatever food is available, and if nothing is readily available, I’ll sometimes just skip eating altogether.

I’ll write up a full review after I’ve had a chance to test the rest of the products, but based on this first experience, if I were a serious competitive player, I’d definitely consider adding Maurten drink mixes to my regular fueling routine.
 
hisreekanth said:
I had a nice luch in the afternoon and then around 4 PM I played for 2+ hours and used the Maurten Drink Mix 160. The energy I got from it was more towards the end of the session and mainly after the 2.5 hours. One thing I noticed is, I was extra thirsty using the drink mix after couple of hours and also my mouth went very dry for few hours after I finished the drink.
Let me know if you feel the same when you use the Maurten Drink Mix 160.
Click to expand...
Salt makes you thirsty
 
Ive used all of these now and ready to pull together a write up - in general I like the products and definitely found them helpful for long matches/practices, especially if I didn’t get enough normal food in me prior to playing.
 
sureshs said:
Certain tribes in Africa make use of this. They put out salt and monkeys eat it. Then they feel thirsty and head towards the secret water spots only they know about. The men then follow the monkeys to the water.
Click to expand...
Wow, that is really fascinating! Nature’s own GPS system. This makes me think how disconnected we humans are from the Nature. The monkeys know exactly where the water is, and the people figured out how to follow the clues. Pretty clever!
 
My review of the Maurten fuel / energy products:

Tennis experience/background: played juniors and college tennis back in the 80s/early 90s, came back to playing regular competitive tennis over the last 6 years or so, play a lot of 4.5 level USTA singles even though I'm now in my 50s, about a 7.6 UTR in both singles and doubles.

Describe your playing style (i.e. serve & volley): crafty all court lefty.

Describe your 4-5 hitting sessions and what you used (each session should be 3-4 sentences minimum)-
  •  Session 1- very hot Texas Sunday afternoon doubles match, and given the timing of lunch with a match start time of 4:30pm, I thought this would be a good opportunity to substitute the larger 320 mix to keep me fueled through the match. Usually I don't consider doubles to be enough of a strenuous workout for testing a product like this, but it was around 100 degrees and sunny, and I was playing mixed doubles which usually involves longer points and me being required to cover more of the court. I was really happy with the extended energy boost this product provided to help me get through the whole match - I was feeling somewhat hungry when I started drinking it at 3:30 before the 4pm warm up session so I knew I needed something, and it was a perfect thing for me to consume as I still felt light and fast given that I didn't have a big meal before hand, but the Maurten drink gave me fuel throughout the 2.5 hours of tennis I played. Also, no spike and crash like I would expect from a sweeter type of energy drink.
  •  Session 2- I drank the 160 drink just before and during a two hour singles drilling/hitting session with one of my regular partners. Again, very hot weather (about 95 degrees), but later in the evening so not as intense of conditions. I had already had dinner two hours prior, but this kid I play with is very consistent and the drills get really long and intense, and definitely felt that the drink gave me a little bit more of a consistent boost of energy. Definitely liked it and was glad to have this as a suplement.
  •  Session 3- morning singles and doubles drilling session, didn't really have time for breakfast, so this was a good opportunity to consume the energy bar just before and during my session. Like the drinks, I felt like it was helpful from and energy perspective, and tasted good but was not overly sugary. My only knock on it was that it definitely required a lot of water to get down - not super easy to chew and swallow while rushing in between changeovers, etc.. In retrospect, I think this would have worked better to eat just before hand, or as a recovery energy option just post playing.
  •  Session 4- used the gel while playing a USTA doubles match in between the first and second sets. Again, very hot day time match, and definitely felt like it helped with an energy boost to get me through the 2+ hour match. I'm glad it wasn't an overly sweet type of energy gel pouch as it felt more like the kind of slow burn energy I think it was designed for vs. a spike and crash type of energy boost I'd get from a typical protein bar or whatever. My only knock on it was that it didn't exactly taste that great, and the gel/squishy consistency was a little gross for me (not a knock on the product itself, just a personal preference of what I like and what works for me).

Please answer the following questions (3-5 sentences minimum). There are some prompt questions in italics to help you.

Drink Mix-Specific Questions
  •  How did you like the taste and consistency? Not the best tasting stuff, but I believe that's by design as it performs well as a constant energy source vs. a sweeter one that would give me a quick boost but then lead to a crash. Not offensive at all however, very neutral flavor, and the consistency was great as it mixed very well with water and wasn't chalky at all.
  •  How easy was it to mix and drink during your training session? Very easy to mix and drink.
  •  Did you notice a difference in your energy or able to maintain your level of play after consuming? I did! I felt like it provided a consistent level of increase in energy to get me through my matches / sessions.
  •  After consuming, how did it feel in your stomach while playing? My stomach felt fine - no issues with digestion at all.

Gel-Specific Questions
  •  How did you like the taste and consistency? Nothing offensive about the taste, but not a big fan of the consistency. I personally preferred the drink mix and the solid bar.
  •  How easy was it to open and consume during your training session? Very easy to open and consume.
  •  Did you feel it gave you a quick energy or more gradual? More gradual! Something I liked about all three products.
  •  After consuming, how did it feel in your stomach while playing? No issues on my stomach at all.

Solid (Bar) Specific Questions
  •  Was the bar easy to eat after a training session? Not super easy to eat, during the training session, probably should have planned to use it when I was done but I needed it to help me get through the session.
  •  What were your thoughts on the flavor/texture? Flavor and texture were good! Kind of like a protein or soft granola bar, but healthier feeling than a more standard one.
  •  How did it settle in your stomach? Just fine! I will say I have some digestive/stomach sensitivity, but didn't feel any issues with these products.
  •  Did you feel like it helped you recover/refuel better than normal? Yes I believe that it did! No crashes, didn't feel particularly hungry for a while after playing.

Overall Questions
  •  What did you think of the drink mix, gels and solid overall? I thought they were a solid supplement / tool for someone who plays pretty intense/high level tennis in fairly extreme weather conditions.
  •  Which was your favorite and least favorite (and why)? My favorite was the drink mix options - very neutral, easy to drink, provided a nice boost in energy that was pretty gradual and got me through my sessions.
  •  Did you notice any difference in your energy, endurance and focus levels over the course of the session? Yes - not intensely so, but I definitely felt like they helped with my ability to maintain a high level of energy and focus.
  •  How does it compare to other nutrition products you have used? Good! Mostly I use a combination of liquid IV type of powdered drink mixed into my water bottle with an occasional energy bar. Compared to that, these Maurten products felt more scientific and gradual / consistent throughout the course of my workouts.

Any Final Thoughts? Very good products, not gimmicky, simple and seem to be more science based / healthy than the typical products I've used and see around. This play test was a great opportunity for me to try something different and more effective - thank you!
 

Maurten Test Collection Products Review​

Tennis experience/background: Started playing tennis around 2002. Now I play competitive USTA 4.0 League matches.

Describe your playing style (i.e. serve & volley): I play right handed. I am an all-court player with an aggressive baseline-oriented game. I rely on consistency, be control of rallies and create opportunities, by figuring out the oppoent and always looking to come forward and finish points at the net when I get a short ball. I like to mix consistency with controlled aggression, using spin, depth, and angles to pressure my opponent.

Hitting Sessions:

  •  Session 1- I had lunch in the afternoon and then my practice was at 4 PM. The weather was 76 degress Fahrenheit. I mixed up the Drink Mix 160 as instructed, sipped 10% of it before 20 minutes of the start of myp singles practice. Played singles for a little over two hours starting around 4 PM, using the Maurten Drink Mix 160 during the session. I felt that the energy boost was more noticeable toward the end of the session, particularly after around 2 hours of playing, when I would normally start to feel some fatigue. One thing I did notice, though, was that I became extra thirsty after using the drink mix for a couple of hours. My mouth also felt very dry for several hours after I finished the drink, so I found myself wanting to drink more plain cold water afterwards. The dryness in my mouth lasted till the next day afternoon. The taste was quite mild and bland.
Overall, I did feel that the Drink Mix 160 helped me maintain my energy during the longer session, especially toward the end.

  •  Session 2- I mixed up the Maurten Drink Mix 320 for a 3-hour intense doubles practice and match session, starting at 9:30 AM. The temperature was around 70–75 degrees. I had a very light breakfast that morning, and the Drink Mix 320 really helped me maintain a steady level of energy throughout the games.

One thing I noticed was that the powder did not mix very well into the 500 ml of water, and some of it would always settle at the bottom. I had to shake the bottle well during changeovers while trying to sip the drink.

I liked the Drink Mix 320 better than the Drink Mix 160. This time, I didn't feel as thirsty during or after the session, which was something I noticed with the Drink Mix 160. I also did not experience the dry-mouth feeling with the Drink Mix 320.

I'm not a big fan of the taste, but considering the energy and endurance I get from it, I'm willing to compromise on the taste.

  •  Session 3- Maurten Gel 100 & Maurten Solid 160 - One and half hours singles hitting session in the morning
The temperature was around 60 degress.
I used the Maurten Gel 100 and Maurten Solid 160 during a one and half hour singles hitting session. The session was fairly consistent and involved a good amount of movement and hitting, so I wanted to see how these products definitely works during a shorter tennis session as fairly as with the longer sessions where I used the Drink Mixes Maurten 320 and Maurten 160.

I felt that both products gave me a nice share of energy and helped me maintain my energy level throughout the session. The Gel 100 was especially convenient to take during a quick break without feeling too heavy, while the Solid 160 felt more like having a small snack and provided a more sustained source of energy. I like how easy the gel packet design is to rop off the top and start squeezing the gel.

For a one and half hour tennis session, I felt that the combination of the bar and gel worked very well. I didn't experience any noticeable energy drop toward the end of the session. Overall, I liked having these as an alternative to the drink mixes, especially for shorter sessions where I don't necessarily need to consume a full bottle of an energy drink. The taste of the Gel is the best of all compared to the other products.
The bar too tasted well and was a little crunchy too.

  •  Session 4- Maurten Gel 100 with just drills I wanted to do an hour of serves, light baseline rallies and volley practice in the evening and took the last left gel 100 with me during the session 4
Temperateure was 65-70 degrees. When I took 3 water breaks during the drills, I used the Gel 100 as well. Again loved the taste. The extra energy after taking the gel was noticable.

 
Please answer the following questions (3-5 sentences minimum). There are some prompt questions in italics to help you.

Drink Mix-Specific Questions
  •  How did you like the taste and consistency? The tast was bald and did not feel like the other popular colorful energy drinks. Good quality prodcut that gives enerygy vs bald taste, one has to choose. The Drink Mix 320 did not mix well and some of it was always seen at the bottom of the bottle. I had to shake it up each time, I did not notice this with Drink Mix 160.
  •  How easy was it to mix and drink during your training session? It was very easy to mix and drink. I mixed it up well before the training sessions.
  •  Did you notice a difference in your energy or able to maintain your level of play after consuming? I noticed significant energy levels staying consistent during the sessions using the Drink Mixes.
  •  After consuming, how did it feel in your stomach while playing? I felft a little heavy in my stomach after drinking the Drink Mix 160, did not notice that with Drink Mix 320.

Gel-Specific Questions
  •  How did you like the taste and consistency? The taste was good, Not too sweet or not too bald. very well balanced taste. The consitency was just right and easy to squeeze it into the mouth.
  •  How easy was it to open and consume during your training session? There is a pre tear to rip off the to section, which gives way to a hole through which one can squeeze the gel into the mouth. Very easy to use.
  •  Did you feel it gave you a quick energy or more gradual? The energy release was gradual throught the sessoins when I used the gel.
  •  After consuming, how did it feel in your stomach while playing? My stomach felt very normal.

Solid (Bar) Specific Questions
  •  Was the bar easy to eat after a training session? Yes, the bar was quite easy to open and eat. The paper was a bit sticky, need to store it properly between each use of the bar between breaks.
  •  What were your thoughts on the flavor/texture? The flavour was quite nice and the taste too. The texture was thick, and I felt like eating any other protein bar.
  •  How did it settle in your stomach? My stomach felt quite normal and satisfied after each bite.
  •  Did you feel like it helped you recover/refuel better than normal? The bar definitely refuled my energy during the sessions.

Overall Questions
  •  What did you think of the drink mix, gels and solid overall? The drink mixes could taste a little better. Gel is my favourite of all! Solid bar needs an extra ziplock covery to store after each bite between sessions.
  •  Which was your favorite and least favorite (and why)? My favourite is the Gel 100 - reason being it reminded me of a sugary candy that I used to eat as a child. The leaset favorite is the Drink Mix 160, as I felt mouth dryness for next 15 hours and also very thirsty for few hours after using the product.
  •  Did you notice any difference in your energy, endurance and focus levels over the course of the session? The products definitely boosts energy levels during the training sessions.
  •  How does it compare to other nutrition products you have used? The other nutrition products I used were very flashy, colorful and the tastes were very catchy. Thease products in my opinion are for serious atheletes who are more results oriented who wants better quality.

Any Final Thoughts?
These are some very good products for serious atheltes, as a lot of research and technology was used to come up with a combination of Drink Mixes, Bar and Gel, which are super easy to carry and use.

Thank you @TW Staff for this oppurtunity to test these products!

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