Udayachand Shetty's winning serve was clocked by radar at 120 mph using a wooden racquet, at the Gilbey Gins fast serve contest held in Chicago on 24 July 1976. Also, Ellsworth Vines in the Wimbledon finals of 1932 clocked 121 mph (without Radar). There are also reports that Bill Tilden had a serve that was clocked at 163.3 mph but there is nothing to verify that. For instance, not listed here, Roscoe Tanner's serve was clocked at 153 mph at Palm Springs in 1978 during the final against Raúl Ramírez.
John Isner holds the ATP-recognised record for the fastest recorded tennis serve, with a serve recorded at 253.0 km/h (157.2 mph) in the first round of the 2016 Davis Cup