WTA 官方宣布将在2020赛季进行两项测试：电子回放裁判及教练场边指导。
电子回放裁判将在查尔斯顿绿土赛（Volvo Car Open）两主场试用，设备是 FOXTENN；
教练场边指导则自杜拜／匈牙利站该周起在所有WTA 赛事适用。由于场边指导难以规范，
新措施将允许教练在选手包厢以合宜方式提供言语鼓励、手势及快速提醒，且不会受罚，
而球员仍可每盘一次局间休息时教练进场指导。
https://www.wtatennis.com/news/1591323/wta
ST. PETERSBURG, FL, USA - The Women's Tennis Association has announced two
new trials that will take place over the 2020 season as the organization
continues to demonstrate its commitment to innovating the sport.
Electronic line calling will be tested on the clay court surface for the
first time at the Volvo Car Open in Charleston, South Carolina, utilizing
FOXTENN technology.
The FOXTENN system, which was officially approved for hardcourt use by the
WTA in 2018, will debut on clay at Charleston’s Billie Jean King Stadium
Court and the Althea Gibson Club Court in April.
The same challenge protocols will be used as those on hard and grass courts,
that of three challenges per set and no ball mark inspections.
Following the introduction of on-court coaching in 2008 and the use of
WTA-authorized tablets in 2015 (with SAP), coaching from the stands will
begin a trial allowing for coaching from the player box at the Dubai Duty
Free Tennis Championships and the Hungarian Ladies Open in Debrecen, Hungary.
The coaching trial will continue through the season at all WTA Premier and
International events.
As coaching is currently not allowed from the player box and is difficult to
regulate, the trial will allow coaches to coach and provide input to their
player through verbal encouragements, hand signals or quick coaching tips
consistent with the manner they currently engage with a player, from the box
and now without penalty.
Any type of coaching conversation must take place through the WTA’s existing
on-court coaching protocol, whereby a player can request their coach to come
to their bench once a set.
“The WTA has always embraced the opportunity to introduce new technology and
innovations to enhance women’s tennis, and we’re excited to see where these
trials take the sport,” said WTA Chairman and CEO Steve Simon.
“We’re hopeful these provisional changes will have a positive impact in
improving the overall playing environment and upgrading the way fans can
enjoy the WTA Tour.”