iShowSpeed's fastest recorded speed is around 11 miles per hour according to the comparison with Olympic sprinter Noah Lyles. There are estimates and discussions in the community that suggest iShowSpeed could run 100 meters in approximately 10.79 to 10.94 seconds, which indicates high-level amateur speed. Additionally, some content claims he has displayed top speeds closer to 21.1 mph in specific challenges, but generally, his best documented sprinting speed is around 11 mph in normal conditions.