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ITTF to Introduce Video Challenge

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zeio View Drop Down
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    Posted: 06/05/2019 at 5:20am
Was waiting for someone to post this but no luck. Here goes.

Nikkan Sports reports that ITTF have decided to introduce video challenge at the World Tour Grand Finals this December, and the WTTC 2020 next March.

If the trial runs are successful, then the system will be implemented for Tokyo 2020.

The specifics are being discussed. Due to substantial cost, the system will likely be implemented for the later rounds only. Whether it'll be automatic like for tennis and badminton, or manual with a VAR like for volleyball and soccer remain to be seen.

https://www.nikkansports.com/sports/news/201906030000759.html
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東京五輪で卓球ビデオ判定導入へ 世界大会で試運転
[2019年6月4日8時0分]

国際卓球£盟(ITTF)が20年東京オリンピック(五輪)でビデオ判定を導入する意向であることが3日、分か£た。

まずは12月のワールドツアー・グランドファイナル、来年3月の世界選手権£体戦で導入する。

今年4月の世界選手権個人戦で伊藤美誠(18=スターツ)早田ひな(18=日本生命)組が女子ダブルス決勝で誤審判定を受け、日本協会がITTFに抗議文を送付。ビデオ判定導入の訴えが実£た形だ。

   ◇   ◇   ◇

ITTFは、グランドファイナル(開催地未定)と、世界選手権£体戦(韓国・釜山)でビデオ判定を試験的に導入し、両大会で成功すれば、東京五輪で採用する。4月30日の時点で「検討する」としていた抗議文の返答が5月中旬、さらに詳しい内容でITTFから日本協会に届き、それらの具体的な計画スケジュールが記されていた。

関係者によると、ビデオ判定を各大会のどの試合で実施するのかは現在、協議中。卓球の場合、大会序盤はコート数が多いため、1回戦から同判定を義務づけると費用がかさむデメリットがある。また、テニスやバドミントンなどで導入されているライン自動判定システムを利用するか、審判が直接ビデオを見て判定する形を取るかも、今後の検討課題だ。

発端は4月28日、ブダペストで行われた女子ダブルス決勝。勝負どころの2-2で迎えた第5ゲーム。得点9-9から早田のサーブに中国選手がレシーブミスし、サービスエースかに思われたが、サーブがネットにかす£たと審判が「レット」の判定。しかし、スロー映像では明らかに球はネットに触れていない。その「誤審」映像はSNSを通じて広がり、ビデオ判定を求める£が高ま£ていた。

伊藤は帰国後、ビデオ判定導入の是非を問われ「もちろん賛成。人間の目は100%£しいことは£しい。特に卓球は(球の動きが)速い競技。他のスポーツでも取り入れている」と導入を強く要望していた。

国内の全日本選手権やTリーグでは現時点で導入の議論はない。しかし、ITTFの動きを受け関係者は「国内での議論も出てくると思う」と話した。

卓球はフェアプレーの観点から、際どいジ£ッジは選手による自己申告を重視してきたが「選手ファースト」を最優先とする東京五輪へ向け、卓球界が大きくかじを切る。
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Simon_plays View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Simon_plays Quote  Post ReplyReply Direct Link To This Post Posted: 06/05/2019 at 7:03am
Interesting!

I wonder if players will be allowed to challenge serves with this (which would be great) or if this is just for edges (which is what I expect).
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pongfugrasshopper Quote  Post ReplyReply Direct Link To This Post Posted: 06/05/2019 at 7:43am
This is a very positive development as is the shot placement/percentage graphic.  I think it could work for some service rules (ball above playing service and not over the table, possibly the hidden service rule), but not sure about all (near vertical rule, 16 cm. from point the ball leaves the hand).
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Post Options Post Options   Thanks (0) Thanks(0)   Quote serr Quote  Post ReplyReply Direct Link To This Post Posted: 06/05/2019 at 9:20am
It's nice but it won't bring new spectators to the sport. In fact "rally time/time between rallies" ratio will decrease further.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote igorponger Quote  Post ReplyReply Direct Link To This Post Posted: 06/05/2019 at 10:08am
    TOO COSTLY, TOO FAULTY.     

TV cameras is no perfect solution, for the "net balls" still cant be seen on slow replay.    In tennis, miniatured piezosensors are now positioned onto the net cord to signal if the ball touched the net in serving.   The signaller device is got activated manually by the umpire in field.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote benfb Quote  Post ReplyReply Direct Link To This Post Posted: 06/05/2019 at 9:55pm
Originally posted by igorponger igorponger wrote:

     In tennis, miniatured piezosensors are now positioned onto the net cord to signal if the ball touched the net in serving. 

I like this idea for Table tennis.  A little microsensor attached to a buzzer on every table.  It'll clarify the issue on net serves, although it could be annoying if the buzzer goes off during the rally due to a net ball.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GMan4911 Quote  Post ReplyReply Direct Link To This Post Posted: 06/05/2019 at 10:37pm
Originally posted by benfb benfb wrote:

I like this idea for Table tennis.  A little microsensor attached to a buzzer on every table.  It'll clarify the issue on net serves, although it could be annoying if the buzzer goes off during the rally due to a net ball.
I don't think it would be hard to design a device that goes off the first time the ball touches the net and stays silent until it is reset.  The umpire could reset it by remote after each point.  Even better if the device could also detect edge balls.


Edited by GMan4911 - 06/05/2019 at 10:38pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote qpskfec Quote  Post ReplyReply Direct Link To This Post Posted: 06/05/2019 at 10:53pm
ITTF timeline sounds way too aggressive.

In sports that are currently using video review, they typically trialed review systems and processes in lower levels of play before introducing to the top level.

Soccer first started experimenting with VAR 7-8 years ago. It was used in junior level world cups and lower level leagues for years to work out bugs and processes. VAR will be introduced to the English Premiere League next year.

Similar paths have been taken by football, basketball, etc. All of these multi billion dollar sports leagues wanted to get it as good as possible before implementing replay at the highest level. You just don't know what you don't know when you start. It takes time to sort it out.

ITTF wants to roll this out at the Grand Finals in 6 months. There is a low probability that it will work fine. Highly likely there will be unanticipated problems.

A net sensor to detect let serves would work as well as the one in tennis. Once a sensor is designed, it still needs to be trialed. This could be done in 6 months.

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zeio View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote zeio Quote  Post ReplyReply Direct Link To This Post Posted: 06/05/2019 at 11:11pm
That's valid point. HKTTA proposed that the hawk-eye system be implemented in 2010 to no avail. Now that JTTA complained formally after that controversial and potentially outcome-deciding point at the WTTC, they want to get it sorted out in time for Tokyo 2020. Hmm...
Viscaria FL - 91g
+ Neo H3 2.15 Blk - 44.5g(55.3g uncut bare)
+ Hexer HD 2.1 Red - 49.3g(68.5g 〃 〃)
= 184.8g
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