New York Yankees
Although he has not thrown an MLB pitch in 2015, Masahiro Tanaka threw 2,033 pitches that were tracked by the PITCHf/x system between 2009 and 2014, including pitches thrown in the MLB Regular Season and The World Baseball Classic. In 2014, he relied primarily on his Splitter (87mph), Slider (84mph) and Fourseam Fastball (93mph), also mixing in a Sinker (91mph), Cutter (89mph) and Curve (74mph). He also rarely threw a Change (88mph).
Basic description of 2014 pitches compared to other RHP:
His splitter is a real worm killer that generates an extreme number of groundballs compared to other pitchers' splitters, generates a high number of swings & misses compared to other pitchers' splitters, is much firmer than usual and has some natural sink to it. His slider results in more flyballs compared to other pitchers' sliders. His fourseam fastball has essentially average velo. His sinker is a prototypical pitch with few remarkable qualities. His cutter is a real worm killer that generates an extreme number of groundballs compared to other pitchers' cutters and has little cutting action. His curve has below average velo and results in more flyballs compared to other pitchers' curves. His change (take this with a grain of salt because he's only thrown 2 of them in 2014) is basically never swung at and missed compared to other pitchers' changeups, is an extreme flyball pitch compared to other pitchers' changeups and is much firmer than usual.