- Who
- Aroldis Chapman
- What
- 105.8 mile(s) per hour
- Where
- Not Applicable ()
- When
The fastest baseball pitch is 105.8 mph (170.2686 km/h) and was thrown by Aroldis Chapman (Cuba) for the Cincinnati Reds in a game against the San Diego Padres, at PETCO Park, San Diego, California, USA, on 24 September 2010. The speed was measured by Statcast, which began recording velocities in 2008.
