On May 20, 2018 — Rookie Jordan Hicks of the Cardinals ties Aroldis Chapman’s record for the fastest pitch ever recorded by pumping a couple of fastballs at 105 mph while facing Odubel Herrera of the Phillies. The first one goes for a ball, and Herrera manages to foul off the second before striking out on a pitched timed at 103.7 mph.

Source:
Baseball Reference May 20