Chicago Cubs
Mark Leiter Jr. has thrown 4,456 pitches that have been tracked by the PITCHf/x system between 2017 and 2024, all of them occuring in the MLB Regular Season. In 2024, they have relied primarily on their Sinker (92mph) and Splitter (85mph), also mixing in a Cutter (89mph), Slider (80mph) and Curve (74mph).