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Xander Schauffele's Callaway Driver Failed COR Test


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Does anyone know the testing protocol for the PGA Tour or the other majors? How often are the drivers tested and what are the random sample sizes?

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> @596 said:

> You don't need to test them all. No league I know of tests everything or everyone everytime they test. The league will test chosen random samples. It should be no different in golf. It's no big deal. Take the stick out of play and play another one, done.

 

Except it's not "Take the stick out of play and play another one, done." As much as the techs will try to get every measurable exactly the same, no two heads are alike. And it's possible that the trailer won't have one with the same loft and face angle configuration to start from, so they'll be trying to make due with something that's close. That's why it's not equitable.

 

Being forced to put a different driver head in play just days before a major championship is a big deal. If you're going to force a handful of players to do so because of testing, every player in the field should be held to the same standard and have the same risk.

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> @Titletown said:

> > @"Canoe Paddler" said:

> > This is a very USGA look for the R&A. If 10+% of the sample failed the test, then there are probably at least 15 more guys playing with illegal equipment. What’s the point of testing for illegal equipment if everyone in the field is not held accountable?

>

> This is the point Xander was making. He said he was unfair to only test 30 players.

 

Need to drug test everyone too... unfair to only get samples from "random" players :wink:

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> @Llortamaisey said:

> It should be like NASCAR, test the winner’s equipment as soon as the 4th round is concluded. Give second place another chance to win. That will stop all this “two drawer” tour van tomfoolery.

 

Theres no two drawer anything going on. Its simply not worth it to the players or the company for little to a fraction of a percent "advantage" on a few shots a round.

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> @jll62 said:

> > @596 said:

> > You don't need to test them all. No league I know of tests everything or everyone everytime they test. The league will test chosen random samples. It should be no different in golf. It's no big deal. Take the stick out of play and play another one, done.

>

> Except it's not "Take the stick out of play and play another one, done." As much as the techs will try to get every measurable exactly the same, no two heads are alike. And it's possible that the trailer won't have one with the same loft and face angle configuration to start from, so they'll be trying to make due with something that's close. That's why it's not equitable.

>

> Being forced to put a different driver head in play just days before a major championship is a big deal. If you're going to force a handful of players to do so because of testing, every player in the field should be held to the same standard and have the same risk.

 

Many carry backups. It would be the smart thing to do so shame on them if they don't.

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> @hef63303 said:

> > @grm24 said:

> > > @hef63303 said:

> > > Just for accuracy's sake, it is a CT Test, not a COR Test.

> >

> > No surpirse Shackelford wouldn't know the difference between CT and COR.

>

> In his defense, some of the early press reports from the tournament made the same error.

Understood. However it's still on him to verify the accuracy of what he's posting.

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> @"Night train" said:

> It seems odd that four drivers failed the test.............and his was the only name that leaked out

 

yea pretty pathetic from the R and A. he has every right to be pissed, should have never gotten out. especially when these things go over the limit just from time or moving weights around.

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> @SAM_PGA said:

> > @Titletown said:

> > > @"Canoe Paddler" said:

> > > This is a very USGA look for the R&A. If 10+% of the sample failed the test, then there are probably at least 15 more guys playing with illegal equipment. What’s the point of testing for illegal equipment if everyone in the field is not held accountable?

> >

> > This is the point Xander was making. He said he was unfair to only test 30 players.

>

> Need to drug test everyone too... unfair to only get samples from "random" players :wink:

 

Just like the rest of the sports, they don't really want to know.

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> @596 said:

> You don't need to test them all. No league I know of tests everything or everyone everytime they test. The league will test chosen random samples. It should be no different in golf. It's no big deal. Take the stick out of play and play another one, done.

 

shouldn't something be done to make sure players and businesses make sure they are using conforming equipment? ... if a stick fails, it's probably already been used several times in tournament play ...

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> @jll62 said:

> > @Titletown said:

> > > @SAM_PGA said:

> > >

> > > >

> > > > It depends on how non-conforming it is. There was a study posted here a while ago discussing how different COR values affect distance. Basically with the margin of error in today's manufacturing even drivers that are over their COR value add very little distance. Furthermore, the tour vans test clubs for their players. I bet his was right on the edge when they initially tested it and barely failed the R&A test. There are also margin of errors in the measuring devices.

> > >

> > > Completely agree with this... Not one manufacturer is going to let a non-conforming driver into play on a world wide platform. Additionally (I can only speak of Titlest) has a routine schedule of testing every single driver they have on play to ensure they do not exceed the illegal line. If a Titleist driver is on the line, they know there is a very good chance that the next time it is tested it could be illegal... A back-up, if it doesn't already exist, will go into production.

> > >

> > >

> >

> > I don't mean to be a smart-a$$ here because I don't know a **** thing about COR, but you say no manufacturer would let a non-conforming driver into play, but Callaway did. I don't blame Xander one bit, but someone has to be at fault. There had to be someone on the tour truck that knew this was non-conforming. Or am I missing something?

>

> I'm no fan of Callaway, but this is all much ado about nothing. When Xander put the head into play, I would bet a lot of money that it was conforming (but very close to the limit after accounting for tolerance). No company is going to intentionally put a non-conforming driver into use these days. His head almost certainly became non-conforming after use.

>

> I do agree with Xander that only testing a 30 club sample isn't equitable. Either test them all, or don't test any.

 

There's a reason the number 30 is chosen. It's called the Central Limit Theorem in statistics. To boil it down, if the sample is sufficiently large, the distribution of results tends to be normally distributed, and sufficiently large has been found to be a sample of at least 30. Doing a sample of 30 will give you comparable results to testing the entire population, at less time and cost.

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> @dwboston said:

> > @jll62 said:

> > > @Titletown said:

> > > > @SAM_PGA said:

> > > >

> > > > >

> > > > > It depends on how non-conforming it is. There was a study posted here a while ago discussing how different COR values affect distance. Basically with the margin of error in today's manufacturing even drivers that are over their COR value add very little distance. Furthermore, the tour vans test clubs for their players. I bet his was right on the edge when they initially tested it and barely failed the R&A test. There are also margin of errors in the measuring devices.

> > > >

> > > > Completely agree with this... Not one manufacturer is going to let a non-conforming driver into play on a world wide platform. Additionally (I can only speak of Titlest) has a routine schedule of testing every single driver they have on play to ensure they do not exceed the illegal line. If a Titleist driver is on the line, they know there is a very good chance that the next time it is tested it could be illegal... A back-up, if it doesn't already exist, will go into production.

> > > >

> > > >

> > >

> > > I don't mean to be a smart-a$$ here because I don't know a **** thing about COR, but you say no manufacturer would let a non-conforming driver into play, but Callaway did. I don't blame Xander one bit, but someone has to be at fault. There had to be someone on the tour truck that knew this was non-conforming. Or am I missing something?

> >

> > I'm no fan of Callaway, but this is all much ado about nothing. When Xander put the head into play, I would bet a lot of money that it was conforming (but very close to the limit after accounting for tolerance). No company is going to intentionally put a non-conforming driver into use these days. His head almost certainly became non-conforming after use.

> >

> > I do agree with Xander that only testing a 30 club sample isn't equitable. Either test them all, or don't test any.

>

> There's a reason the number 30 is chosen. It's called the Central Limit Theorem in statistics. To boil it down, if the sample is sufficiently large, the distribution of results tends to be normally distributed, and sufficiently large has been found to be a sample of at least 30. Doing a sample of 30 will give you comparable results to testing the entire population, at less time and cost.

 

so, if one person out of 30 failed, then that's about 5 for the tournament ... only way to prevent this is to punish the player (and therefore the company) sufficiently that they produce a club that they know will NOT fail, instead of trying to get so close to the limit ... what punishment will insure that?

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> @Fade said:

> > @"Night train" said:

> > It seems odd that four drivers failed the test.............and his was the only name that leaked out

>

> I think Xander disclosed his failing in an interview. The R&A did not come out with it.

 

Appears the R&A did leak.

https://www.golf.com/news/2019/07/20/xander-schauffele-pissed-driver-results-leaked-cheater/

What initially drew Schauffele’s ire was his allegation that his test results had been leaked.

 

_“We’re the traveling circus. There’s certain moving parts on Tour here — and everyone on the grounds knew for some odd reason. So that’s enough to throw me off my game. I can handle it, I’m a big boy,” he said. “But it was just handled unprofessionally. And it did tick me off, for sure.”_

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> @QuigleyDU said:

> Sacrificial lamb. If you tested every driver at a single event you would have way more fails.

 

If you tested every driver in joe hacks hands you’d find even more. And you’d also find a lot of very safe drivers.

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Although it shouldn't happen at all, I would be less worried about the driver heads, and more about monitoring all the one-off tour player ball models that are out there. Unless I am missing something with that...?

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It would take the usga/ra ruling the flash non conforming to get it to stop. That won't happen. Let's be clear Xander is not knowingly cheating. It's probably one CT point which may equate to a foot in distance.

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Knowledge of the Rules is part of the applied skill set which a player must use to play competitive golf.

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> @burritos4breakfast said:

> > @"Night train" said:

> > It seems odd that four drivers failed the test.............and his was the only name that leaked out

>

> yea pretty pathetic from the R and A. he has every right to be pissed, should have never gotten out. especially when these things go over the limit just from time or moving weights around.

 

i'm not sure R&A leaked it. xander brought it up in a press conference and explained what happened. to my knowledge, non of the reporters in the room knew he failed a driver test.

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