Although he has not thrown an MLB pitch in 2019, Nick Martinez threw 7,365 pitches that were tracked by the PITCHf/x system between 2014 and 2017, including pitches thrown in the MLB Regular Season and Spring Training. In 2017, he relied primarily on his Fourseam Fastball (93mph) and Sinker (93mph), also mixing in a Curve (80mph), Cutter (90mph) and Change (86mph).
Basic description of 2017 pitches compared to other RHP:
His fourseam fastball has essentially average velo, results in somewhat more flyballs compared to other pitchers' fourseamers and has some added backspin. His sinker generates fewer whiffs/swing compared to other pitchers' sinkers and has little sinking action compared to a true sinker. His curve has primarily 12-6 movement and is slightly harder than usual. His cutter is a real worm killer that generates an extreme number of groundballs compared to other pitchers' cutters, has surprisingly little cutting action and has good "rise". His change generates fewer whiffs/swing compared to other pitchers' changeups, is slightly firmer than usual and has slight armside fade.