Chicago Cubs
Mark Leiter Jr. has thrown 3,468 pitches that have been tracked by the PITCHf/x system between 2017 and 2023, all of them occuring in the MLB Regular Season. In 2023, they have relied primarily on their Splitter (85mph) and Sinker (92mph), also mixing in a Cutter (89mph), Curve (74mph) and Fourseam Fastball (91mph).