I had the same issue with Pro Penns last year but they seem to have corrected it.Sorry to bring back a zombie thread, but I'm a high school coach and am in the process of stocking up for the upcoming season. Like you, I bought Pro Pen Marathons last year, but was dissapointed in the quality. Most of the cans contained balls that were too hard and low bouncing for my liking. They didn't seem like quality competition to the US Opens and Dunlop ATPs that I've used in the past.
Do you have experience with the Diadems? So far, I've read good reviews, and the price per can is really good when using a coupon.
Never knew that!Diadem are actually US Open balls
Yep, same factory.Never knew that!
This is so truewhere did we purchase the balls from?
How much do they have in storage? Balls might be batches ago that were bad vs new?
Is it better to buy local or from big online store? Does the way the balls get to us effect their performance? Truck vs. air?
Another variable that messes all this up is where did we purchase the balls from?
How much do they have in storage? Balls might be batches ago that were bad vs new?
Is it better to buy local or from big online store? Does the way the balls get to us effect their performance? Truck vs. air?
They're still made in Thailand, but they're most definitely not US Opens anymore. Someone in my group brings US open and their last batch was from November/December of last year, 2024. I bought Diadems on Labor day, about 2 months ago, and there's been sessions where I've played with both side by side. The current Diadems has a trait unique to Tecnifibre X-Ones, which is the ball jump out at you. The current batch or at least my batch are X-Ones not US Opens, which is also made in Thailand. So I'm guessing Diadem switched from US Open's factory to X-Ones' factory. Although I'm pretty sure their pressureless are still Trintis.Diadem are actually US Open balls, come from the same factory, unless they've switched sourcing. I used them during the pandemic as it was all I could find at the time and they were fine.
Most of your assessment is correct. One factory in Thailand makes pretty much everything except Penn, Head, Dunlop, Slazenger and some of the garbage balls. Agree that the Triniti and Diadem pressureless are indistinguishable, although I sometimes see Diadems that are flat--not enough to make up for the 50% price premium for Triniti. We use the Diadem pressureless at high altitude and cold temperatures (up to 2500 m elevation and down to freezing) and they seem to do very well for us.They're still made in Thailand, but they're most definitely not US Opens anymore. Someone in my group brings US open and their last batch was from November/December of last year, 2024. I bought Diadems on Labor day, about 2 months ago, and there's been sessions where I've played with both side by side. The current Diadems has a trait unique to Tecnifibre X-Ones, which is the ball jump out at you. The current batch or at least my batch are X-Ones not US Opens, which is also made in Thailand. So I'm guessing Diadem switched from US Open's factory to X-Ones' factory. Although I'm pretty sure their pressureless are still Trintis.
No kidding. Most of these don't bounce up to spec height straight out of the can, even at high altitude. I routinely show that multi set, week old Diadem or Babolats play better than new Penns.Very true. Almost every can of "America's #1 Selling Ball" I've opened or had opened for me this year has been rubbish. But, most probably came from Costco or Walmart and had been sitting around for god knows how long.
Come from the same factory, but with slightly different felt. Both have a mesh base, so they wear nicely and don't gouge out when you hit hard serves or overheads like some of the cheaper balls. US Open has a small wool content, which may account for why my Labrador tends to prefer US Open over Diadems.I had the same issue with Pro Penns last year but they seem to have corrected it.
I was using US Opens because I kept getting USTA promo codes but in the last month went back to Pro Penns. They are quite lively and feel much better than Wilson. The US Opens are pretty hard these days, by comparison.
Also have yet to have any Pro Penn cans with 1 dead or weak bouncing ball, which previously was common.
Diadem are actually US Open balls, come from the same factory, unless they've switched sourcing. I used them during the pandemic as it was all I could find at the time and they were fine.
Same factory, but definitely not the same ballYep, same factory.
Obviously that was 4-5 years ago, so could've changed but I doubt it.
That is a big problem for me and it continues that way with the USO balls.Another variable that messes all this up is where did we purchase the balls from?
How much do they have in storage? Balls might be batches ago that were bad vs new?
Is it better to buy local or from big online store? Does the way the balls get to us effect their performance? Truck vs. air?
The other night played buddy opened up some US Opens. Felt crisp and lively and after 3 sets still had a nice bounce. But most US Opens I've played with lately are bald after a set and become hard. So did my buddy have an old batch or a newer batch? Or were the bad balls I've experienced come from some pandemic balls?
Great deal on balls in general.PSA: Diadem Premier Extra Duty cases are currently on sale on the Diadem website for 30% off, $76.96 vs the usual $109.95.
What qualities do you find superior with the US Open over the Diadem?I have been using diadems as well.....
I have found that side by side with Wilson US Opens, the Wilson is a better ball overall, but the price, yikes!
The Diadem is a far better VALUE.
USO are more lively and softer than the Diadems ime. I'd agree with your assessment of the Diadems.. they are maintain pressure and the felt durability is far better than the USO balls which go bald after an hour.What qualities do you find superior with the US Open over the Diadem?
Local stores in my area has the same price for the AO, FO, W, and USO balls.both kinda pricey haha.
It seems like comfort is what you are after so if you have a Decathlon in your country, I heavily recommend their "Comfort Pro".Any other balls you all recommend I try
Haven’t heard of the Decathlon Comfort pro but I’ll check em out, thanks!
Yup it’s the Slazenger Wimbledon ball aka the yellow metal can ones
If you love Slazenger Wimbledon , just try Solinco Tour. They are just a little bit better on all fronts ....
Or give the X-one a bit more playing time....after a few sessions just the best ball![]()
If you are looking for a soft feeling ball that is more price senstitive have you tried good old Wilson Champsionships?Further follow up because I forgot to mention these.
Wilson Roland Garros Clay. These are probably my favorite Wilson ball. They hold up well, aren’t too hard, don’t turn into muppet fuzz. Overall they are really solid balls just not as comfortable on my elbow as the Yonex Tour or especially the Slazengers which both stand out in that regard.
Any other balls you all recommend I try? Tecnifibre Courts or give Babolat Gold another try?
I’m not opposed to just sticking with Slazenger and Yonex Tour but man they are both kinda pricey haha.
If you are looking for a soft feeling ball that is more price senstitive have you tried good old Wilson Champsionships?
Find it to be a good bargain ball. not as crisp as "premier" balls but good bounce and softer feel but not mushy.
Weird. I have not experienced that level of failure with the Wilson Champsionships. My buddy brings those when it's his turn to open a can.I did, I bought 2x cans and out of the 6 balls I got 2 dead ones. So of the 4 balls left they died really fast unfortunately. They actually were decently soft and fine balls but the fail rate made me think the more expensive ones were worth it?
These were from 2 different retailers too so not like one shop just had a bad batch
I would try the x1 again but I noticed it too much in my elbow to keep using them…doesn’t seem worth going through a play session or two that don’t feel good on my arm to get to ones that do…
X-One balls are indeed quite hard. But after a few sessions, they're really fun. If you can't tolerate them, you'd better avoid them; they're not worth a second try. Every new can is just as hard![]()
Maybe a very dumb question, but do you use the Roland Garros Clay balls on a hard court or only for clay?Further follow up because I forgot to mention these.
Wilson Roland Garros Clay. These are probably my favorite Wilson ball. They hold up well, aren’t too hard, don’t turn into muppet fuzz. Overall they are really solid balls just not as comfortable on my elbow as the Yonex Tour or especially the Slazengers which both stand out in that regard.
Any other balls you all recommend I try? Tecnifibre Courts or give Babolat Gold another try?
I’m not opposed to just sticking with Slazenger and Yonex Tour but man they are both kinda pricey haha.
I tried Diadem Premier for the first time this week. They feel good and I liked them a lot, I would say they are the closest to Wilson US Open. No problem with making them go fast through the court here. This was indoor on hard court.I'm developing a love hate relationship with Diadem Premier. Very crisp feel, durable and good bounce, but seems to play slow. We were wondering if it was the felt, since on a drop bounce it bounces very high, but when we start playing compared to ProPenn Marathons, the Diadem's sit up more and makes a thuddier sound against the racquet.
I like the way they feel--crisp and heavy but hard to put balls away with them sitting up easier. ProPenns would go through the court faster.
I continue to test these out. I"ve got a lot of mixed responses from everyone I play with.I'm also a fan of the Diadem Premier XD and they are easier to find in the US
we've had such bad fuzzing with U.S. Open extra duty that I've switched over the regular duty for the indoor season.
The shipping process do not ruin the balls?shipped from England to Canada