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Wimbledon: Electronic Line Calling System Malfunctions During Quarterfinal Match

GREATER LONDON, ENGLAND, JUL 8 – Rennae Stubbs urges reinstatement of line judges after electronic line-calling system was accidentally switched off, causing a controversial point decision during Wimbledon 2025.

  • During Tuesday's Wimbledon men's quarterfinal between Taylor Fritz and Karen Khachanov, a malfunction in the electronic line-calling system led umpire Louise Azemar-Engzell to stop play and order a replay of a point.
  • This error occurred because the ELC system was inadvertently deactivated for three points due to human error, which the All England Club fully acknowledged and blamed on an operator oversight.
  • The error occurred early in the fourth set when Fritz’s forehand was mistakenly called a fault, as the system tracking had confused it for a serve instead of a shot during a rally.
  • Fritz eventually won the match 6-3, 6-4, 1-6, 7-6, hitting 16 aces with a top serve reaching 138 mph, while the organizers stated, “So we’re absolutely confident in the system.”
  • Following a full review, Wimbledon implemented changes to prevent similar errors, removed manual deactivation ability from Hawk-Eye, and expressed confidence that incidents like this are unlikely to recur.
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Metro News broke the news in London, United Kingdom on Monday, July 7, 2025.
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