Australian Open 2020: Nick Kyrgios 252 km/h serve, fastest tennis serves ever, Kyrgios serve speed, speed gun was wrong
![Ben Shelton registers fastest serve of US Open at 149mph as he defeats Tommy Paul to become the youngest American man to progress to the quarterfinals since Andy Roddick in 2002 Ben Shelton registers fastest serve of US Open at 149mph as he defeats Tommy Paul to become the youngest American man to progress to the quarterfinals since Andy Roddick in 2002](https://i.dailymail.co.uk/1s/2023/09/03/21/75018843-0-image-a-10_1693773895128.jpg)
Ben Shelton registers fastest serve of US Open at 149mph as he defeats Tommy Paul to become the youngest American man to progress to the quarterfinals since Andy Roddick in 2002
![Ben Shelton breaks his own record for fastest US Open 2023 serve with 149mph ace; Tommy Paul joins crowd in applause for compatriot Ben Shelton breaks his own record for fastest US Open 2023 serve with 149mph ace; Tommy Paul joins crowd in applause for compatriot](https://staticg.sportskeeda.com/editor/2023/09/fa9b4-16937661475829-1920.jpg)