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2d ago

Record Heat, AI Line Calling and Seeds’ Exodus Define Wimbledon’s Early Rounds

Artificial intelligence line calling was deployed alongside hot-weather safety measures following record temperatures at the All England Club

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 1, 2025 Ukraine's Dayana Yastremska celebrates winning her first round match against Coco Gauff of the U.S. REUTERS/Stephanie Lecocq
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Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 1, 2025 Ukraine's Dayana Yastremska and Coco Gauff of the U.S. embrace after their first round match REUTERS/Stephanie Lecocq
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Overview

  • Wimbledon recorded a provisional high of 29.7°C on opening day, triggering the tournament’s new heat-stress protocols that grant extra recovery breaks
  • The All England Club introduced an AI electronic line-calling system in place of traditional judges to ensure accurate calls on grass
  • A record-tying 23 seeded players, including Coco Gauff, Jessica Pegula and Alexander Zverev, failed to reach the second round, reshaping the draw
  • Novak Djokovic, aiming for a 25th Grand Slam title, progressed to round two alongside Jannik Sinner and defending champion Barbora Krejcikova
  • Organisers warned fans not to join the queue due to overcrowding and high temperatures, deploying extra medical teams and issuing health advisories to spectators