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PostPosted: 16 Jul 2019, 07:57 
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This notification for umpires has emerged recently July 7, 2019. Very intriguing info, indeed.
https://ittf.cdnomega.com/eu/2019/07/EqNews1.pdf
Quote:
"Low friction pimples-out are not ITTF authorized".
What reason is behind the notes, I wonder so much.
How could umpire know if the pimps belong to the "low-friction" category ? What exactly boundaries should be for the "low-friction" category ??????????

Is ITTF going to adopt some pimples friction tests for major events?


Last edited by igorponger on 16 Jul 2019, 14:11, edited 1 time in total.

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PostPosted: 16 Jul 2019, 11:35 
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So what does this mean? How does an official objectively enforce this? There must be more than this cryptic statement. (I checked Igor's link and he has pretty much quoted it verbatim).

If it happens in the litigious US of A without the proper change in rules / regulations, I imagine that there may be a law suit or two to follow.
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Alternatively, they could remove the rule / regulation that a minimum friction rule apply to pimples out rubber at the time of manufacture.

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PostPosted: 16 Jul 2019, 13:34 
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https://ittf.cdnomega.com/eu/2019/07/EqNews1.pdf

That URL is suspicious. The server domain is actually "cdnomega.com", who knows who it belongs to. The fact that it says "ittf" in the beginning means nothing - anyone can name a server anything they like. If it's an official ITTF announcement wouldn't it be posted on ITTF's own web site? I suspect this is a prank. The vagueness of it would then make sense.

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PostPosted: 16 Jul 2019, 14:53 
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I suspect it's legit... it's likely a CDN for the ITTF. They would use CDNs for their video, so probably for their other content too.

CDN: "A content delivery network (CDN) is a system of distributed servers (network) that deliver pages and other web content to a user, based on the geographic locations of the user, the origin of the webpage and the content delivery server."

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PostPosted: 16 Jul 2019, 15:26 
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even if its legit, I cant see ANY local organisation enforcing this at all. Too many administrative hold ups

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PostPosted: 16 Jul 2019, 17:47 
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there are several "low friction" pimples out there that are ittf approved. total nonsense as usual from the ittf

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PostPosted: 16 Jul 2019, 18:01 
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Could it be about approved pips rubber that have been well used (perhaps in the sun) and therefore have lower friction than it was suposed to?

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PostPosted: 17 Jul 2019, 02:16 
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haggisv wrote:
I suspect it's legit... it's likely a CDN for the ITTF. They would use CDNs for their video, so probably for their other content too.

CDN: "A content delivery network (CDN) is a system of distributed servers (network) that deliver pages and other web content to a user, based on the geographic locations of the user, the origin of the webpage and the content delivery server."


Sure, it might be a CDN, but then wouldn't they disguise the URL? Especially if it's an official announcement? I'm sure all that video content on ITTF's web page, and indeed all of YouTube itself, is all served off CDNs, there's no other way it'd work worldwide without saturating the international fiber links and with horrible buffering, but you never see the URLs of the actual physical CDNs. I do see two or three other pages on that server that are table tennis related, but those seem to be admin stuff for the Korean Open. Maybe this is part of a backchannel service for people who manage tournaments and this is a stray page which no one except these officials were supposed to see, perhaps it's supposed to appear on another URL and part of another set of pages which we can't see, or maybe it's a placeholder or work in progress. One wonders how Igor gets to know about these stray pages, but there you have it. Even if it's what it looks like, it's probably worthless in any case.

Now assuming it's not a hoax, or a troll by you-know-who, which I suspect - how does ITTF manage frictionless rubbers at tournaments? First of all, no one can use a rubber that's not on the LARC, and have been submitted for testing at ITTF's labs. All of these rubbers will be above the stated minimum friction. So why bother telling referees this, when they know it already? I suppose rubbers can be put out in the sun and such, but unless there's something in the Racket Control Room toolkit to actually measure friction, again, there's no point telling referees this.

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PostPosted: 17 Jul 2019, 03:46 
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Of course for smaller events it's very hard to test for.

Here is just a video I found about testing friction. Seems that it would be easy to do with the right equipment.




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