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Fastest recorded tennis serve

Record

263.4 km/h

163.67 mph

Holder
Sam Groth

Serve clocked at a Challenger event, where radars are not strictly calibrated: the ATP does not recognise it as the official record.

Fastest recorded tennis serve
Photo: Diane Krauss ( DianeAnna ) · CC BY-SA 3.0

What to remember

The radar read 263.4 km/h in the second round of the 2012 Busan Open Challenger. Australian Sam Groth's serve is the fastest ever reported in professional tennis, but the ATP does not recognise it: radars are not strictly calibrated at Challenger events.

He is also credited with a non-outlier maximum of 236.6 km/h and an average first serve of 197.9 km/h. Groth reached world No. 53 in singles in August 2015 and No. 24 in doubles.

The history of fast serving is hazy. In the 1920s Bill Tilden reportedly served at 262.81 km/h, with nothing to verify it, and another of his serves was claimed at 263.30 km/h in 1931.

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