India, Sept. 12 -- An earlier US Open 2026 match update credited Ben Shelton with 158 mph serve during his semifinal against Frances Tiafoe. However, the US Open and Hawkeye have since corrected the reading, confirming that the serve was actually 144 mph (230 km/h).

US Open 2026 Semifinals Live

The correction came after the tournament's official account initially published the 158 mph figure. The updated data means Shelton's fastest serve of the match so far is 149 mph, according to the US Open's official statistics.

After review, it came in at 144 MPH.

Still pretty fast. https://t.co/mQiLQ9fK5Q

- US Open Tennis (@usopen) September 12, 2026

While the 158 mph number was incorrect, the corrected 144 mph serve was still another example...