Washington Nationals
Although they have not thrown an MLB pitch in 2024, George Kontos threw 5,503 pitches that were tracked by the PITCHf/x system between 2011 and 2018, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2018, they relied primarily on their Cutter (87mph) and Sinker (90mph), also mixing in a Slider (84mph). He also rarely threw a Fourseam Fastball (90mph) and Change (84mph).