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ABC Top Stories6/2/2026Sports2 min readAustralia

French Open director backs line judges over technology

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French Open director Amelie Mauresmo defended the use of human line judges despite a controversial call in Casper Ruud's loss, citing concerns about the reliability of electronic line-calling technology on clay courts.

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Why It Matters

During a French Open match, a controversial line call favored Joao Fonseca over Casper Ruud. The tournament director, Amelie Mauresmo, stated her preference for human line judges over electronic systems due to reliability concerns, especially on clay courts.

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French Open director Amelie Mauresmo has backed her line judges, saying she has no immediate plans to introduce the technology at Roland Garros despite a controversial call during Casper Ruud's loss against Joao Fonseca.

Ruud, a two-time runner-up in Paris, ultimately lost the fourth-round match 7-5, 7-6(10/8), 5-7, 6-2, but during the second-set tiebreaker, with Ruud up 8-7, a spectator in the crowd shouted that a forehand down the line hit by Fonseca had landed out.

The chair umpire came down to check the mark and ruled that the Brazilian's shot was in, handing him the point.

An electronic line-calling on television showed the ball was out, but the Parisian tournament does not use the ball-tracking technology like the other grand slams, with tradition-obsessed Wimbledon last year joining the Australian and US Opens in ditching line judges.

Mauresmo said after the match that she still prefers humans over technology because it cannot be entirely trusted.

"What we observed at the clay-court tournaments leading up to Roland Garros is that the reliability of this system is not absolute," she told reporters.

"As of today, the machine is not 100 per cent reliable, so we continue to place our confidence in human officials."

The WTA and ATP have added machine-generated rulings for red-clay events, but Grand Slam hosts make their own rules.

Although disputes over marks on the surface are not rare at Roland Garros, Mauresmo said many players recognise the system is not entirely reliable on clay, a live surface that constantly changes with weather conditions and poses challenges to accurate digital tracking.

"So we have received no real feedback pushing us in that direction [of electronic line-calling]," she said, adding that there will be a review after the tournament.

"For us today, what matters is reaffirming our trust in human officials. We've made that choice for 2026. As for 2027, we'll see. We remain open to any new technology that becomes available to us."

Mauresmo said that looking at Rudd's reaction after the call, she could tell "he was not shocked by the decision".

Ruud labelled the call "marginal" after the match.

"The forehand he hit, it was marginal, either in or out," he said.

"It was called in, obviously. If I win that set, it can be 2-1 up instead of 2-1 down. Instead of love-two, you're one-all. So that's unfortunate, obviously, in my situation."

What to Watch

AI outlook — possibilities, not facts

  • The French Open will review its stance on electronic line-calling technology after the tournament.

    Very likely · Within months

  • The French Open will continue to use human line judges for the 2026 tournament.

    Very likely · Within years

Open Questions

  • Will the French Open adopt electronic line-calling in future years?
  • What specific reliability issues have been observed with electronic line-calling on clay courts?
  • How will the review after the tournament influence future decisions regarding technology?

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This article was originally published by ABC Top Stories.

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