This St. Louis Cardinals pitcher threw the fastest pitch in MLB in

Ryan Helsley throws 104.2 mph pitch to Rowdy Tellez

Fastball - Wikipedia

Listing the top 5 fastest pitchers in MLB history after Hunter Greene's record-breaking performance

Jordan Hicks fastest pitch vs. Braves

The fastest pitch of 2018 was thrown by a rookie you've never heard of

Aroldis Chapman of Cincinnati Reds threw 62 fastest pitches of season, per MLB Statcast computer system - ESPN

Ryan Helsley throws 104.2 mph pitch to Rowdy Tellez

St. Louis Cardinals: Jordan Hicks throws fastest recorded pitches

Chapman threw fastest pitch in MLB in 2015 and 61 fastest after that

Ben Joyce throws fastest pitch in college baseball history

The 100 mph pitch club is among the most exclusive places in baseball