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Gauff Confronts Serve Woes After Montreal Loss, Plans Technical Overhaul

Her doubles triumph in Montreal has given way to a biomechanical overhaul plan from Rick Macci for her troubled serve.

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Aug 4, 2025; Montreal, QC, Canada; McCartney Kessler (USA) and Coco Gauff (USA) in semifinal play against Olga Danilovic (SRB) and Su-Wei Hsieh (TPE) at IGA Stadium. Mandatory Credit: Eric Bolte-Imagn Images
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Overview

  • At the Canadian Open, Gauff hit 42 double faults in three singles matches and was ousted by 18-year-old Victoria Mboko 6-1, 6-4 in just 62 minutes.
  • She bounced back instantly by partnering with McCartney Kessler to win the doubles crown, overcoming Taylor Townsend and Zhang Shuai 6-4, 1-6, 13-11 after briefly ending her doubles retirement.
  • Gauff topped the WTA Tour with 430 double faults in 71 matches during 2024 and has added over 250 more in 41 outings this year, underscoring chronic service inconsistency.
  • She skipped the Citi Open to work exclusively on her serve, publicly voiced frustration with her coaching setup and set a goal of reducing double faults to around 2–3 percent.
  • Rick Macci, Serena Williams’ former coach, has offered a science-based, biomechanical offseason intervention that he believes could reset her serve mechanics in as little as one hour.