ATP 理事会去年11月同意，今年２月里约站起将在３项红土赛事测试电子即时回放裁判，
５００分级里约站将使用FOXTENN 技术，其余２５０及１０００赛事各一站则待定。
https://www.atptour.com/en/news/atp-announces-electronic-review-trial-on-clay
The ATP has announced that a trial of Electronic Review will take place at a
select number of clay court events on the ATP Tour for the first time,
beginning with the ATP 500 event in Rio de Janeiro in February.
The trial on clay was approved by the ATP Board in November 2019 and will
take place at three events across the ATP 250 (TBD), ATP 500 (Rio Open
presented by Claro), and ATP Masters 1000 (TBD) categories in 2020. The
tournament application process for Electronic Review in the Spring clay court
season is on-going.
The Electronic Review challenge system was first introduced on the ATP Tour
in 2006 in Miami. Subsequently, the challenge system has been successfully
implemented on all surfaces except for clay, where the protocol of allowing
players to ask chair umpires to check ball marks during matches has been
maintained.
The use of Electronic Review on clay is designed to elevate the accuracy of
officiating. During the trial, there will be no limit to the number of
challenges players are able to make during matches, ensuring consistency
within the tournament for players competing on show courts with the review
technology as well as on outside courts where standard ball mark inspection
protocols will apply.
The ATP has been working closely with suppliers to ensure the accurate and
successful application of the technology on clay. A number of trials have
taken place at ATP Challenger Tour events in 2019 which have included
accuracy testing prior to the tournament, shadow testing during the
qualifying and real play testing during the tournament.
The trial at the ATP 500 in Rio de Janeiro will take place with technology
from FOXTENN, which has been officially approved by ATP as an Electronic
Review system for use on clay.