Electronic line-calling system malfunctions during quarterfinal match at Wimbledon

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A malfunction with Wimbledon’s new electronic line-calling system required a point to be replayed during a quarterfinal match between Taylor Fritz and Karen Khachanov on Tuesday.

The latest issue with the system occurred during the opening game of the fourth set on Court No. 1 after Fritz had served at 15-0 and the players exchanged shots. Then came a random “fault” call.

Chair umpire Louise Azemar-Engzell stopped play and a few moments later announced: “Ladies and gentlemen, we will replay the last point due to a malfunction.”

The system had tracked Fritz’s shot in the rally as if it was a serve, the All England Club said.

“The player’s service motion began while the (ball boy/ball girl) was still crossing the net and therefore the system didn’t recognize the start of the point. As such the chair umpire instructed the point be replayed,” the club said in a statement.

After the “fault” call, a perplexed Fritz turned to the umpire’s chair and spread his hands as if asking “what was that?”

Neither player seemed upset and Khachanov won the replayed point, but the fifth-seeded Fritz advanced to the semifinals with a 6-3, 6-4, 1-6, 7-6 (4) victory.

“If it would happen on a break point or deuce or maybe tiebreaker, OK, you can get more mad,” the 17th-seeded Khachanov said. “But it was just beginning of the set, 15-Love or Love-15. I don’t remember. It was maybe not that important moment. That’s why I stayed really focused and calm.”

Wimbledon switched this year to the electronic system that replaced human line judges but it’s been anything but smooth.

On Sunday, there was a glaring mistake at Centre Court during Anastasia Pavlyuchenkova’s three-set victory over Sonay Kartal in the fourth round. A shot by Kartal clearly landed past the baseline but wasn’t called out by the automated setup — called Hawk-Eye — because it had been shut off.

On Monday, club officials blamed “human error” for the oversight. Club chief executive Sally Bolton said the technology was “inadvertently deactivated” by someone for three points in the match.

Fritz, who will face either defending champion Carlos Alcaraz or Cameron Norrie for a spot in the final, said he still prefers the new system.

“There’s going to be some issues here and there but, to be honest, I still think it’s much better to just have the electronic line-calling (system) calling the lines as opposed to umpires,” he said.

“I do like not having to think about challenging calls in the middle of points,” Fritz continued. “I do like that we don’t have to argue about calls and all this stuff. I think it’s a better system.”