Coco Gauff

Tennis

Coco Gauff

American tennis player; 2023 US Open and 2025 French Open champion

6 sourced records. Each exercise has a top recorded mark and its evidence. Check the date, age, effort and method before you compare.

Coco Gauff Serve speed

Coco Gauff's recorded Serve speed is 128 mph. Performance date: 2022-08-31. Age at the time: 18. This was a competition result. The source at tennis.com gives this mark. Source type: news report. Confidence is medium.

2022 US Open, second round vs Elena-Gabriela Ruse · WTA player, age 18

Source quote and limits
“emphasized her need for speed by striking a 128 mph serve in her 6-2, 7-6 (4) victory over Elena-Gabriela Ruse”

Coco Gauff revels in 128 mph serve, balances Serena watch schedule with US Open campaign (Tennis.com, David Kane, 2022-08-31)

Tournament radar. The article calls it the fifth-fastest serve by a woman. Wednesday of the first week, 2022-08-31. 128 mph = 206 km/h (converted).

Serve speed history. Methods and conditions can differ between records.
DateCompetition / season and methodValueUnitSource
2026age 21–22US Open 2026 first round vs Zeynep SonmezServe speed125mphusopen.org
Evidence

Official result; Competition; performance date 2026.

By the numbers: Facts and figures from the 2026 US Open quarterfinals

Professional tennis player

“She hit 125 mph in her first-round win over Zeynep Sonmez.”

Official tour or tournament report. The date uses the finest feat precision supported by the source.

2024-01-25age 19Australian Open 2024 semifinal vs Aryna SabalenkaServe speed201km/hwtatennis.com
Evidence

Official result; Competition; performance date 2024-01-25.

Among a lot of positives in loss, Gauff hits Melbourne's fastest serve

Professional tennis player

“A 201 kmh (124.9 mph) serve she hit in the eighth game of the first set.”

Official tour or tournament report. The date uses the finest feat precision supported by the source.

2023-01age 18Australian Open 2023Serve speed121mphwtatennis.com
Evidence

Official result; Competition; performance date 2023-01.

Making the case for each of the Australian Open semifinalists

Professional tennis player

“Her fastest serve was 121 mph, a speed only Coco Gauff was able to match.”

Official tour or tournament report. The date uses the finest feat precision supported by the source. The article compares Rybakina with Gauff and explicitly states that Gauff matched the speed.

2022-08-31age 182022 US Open, second round vs Elena-Gabriela RuseServe speed128mphtennis.commedium confidence
Evidence

News report; Competition; performance date 2022-08-31.

Coco Gauff revels in 128 mph serve, balances Serena watch schedule with US Open campaign (Tennis.com, David Kane, 2022-08-31)

WTA player, age 18

“emphasized her need for speed by striking a 128 mph serve in her 6-2, 7-6 (4) victory over Elena-Gabriela Ruse”

Tournament radar. The article calls it the fifth-fastest serve by a woman. Wednesday of the first week, 2022-08-31. 128 mph = 206 km/h (converted).

2022age 17–18Wimbledon 2022Serve speed124mphwtatennis.com
Evidence

Official result; Competition; performance date 2022.

Insider Wrap: Rybakina delivers on potential

Professional tennis player

“124: The fastest serve (in mph) of Wimbledon, courtesy of Coco Gauff.”

Official tour or tournament report. The date uses the finest feat precision supported by the source.

2021-07age 17, youthWimbledon 2021, round of 16Serve speed125mphwtatennis.com
Evidence

Official result; Competition; performance date 2021-07.

Insider Wrap: Feel-good stories from Wimbledon

Professional tennis player

“125: Miles per hour. That was the fastest serve of the women's tournament”

Official tour or tournament report. The date uses the finest feat precision supported by the source.

Photo: Rick Munroe, CC BY-SA 4.0, via Wikimedia Commons. Cropped.