His main secondary pitch besides his cutter, Koch throws his changeup over 16% of the time and averages just over 85 mph. It has good horizontal movement with an xMov score of -7.8.
Koch’s curveball has good downward break from an over-the-top arm-slot. Averaging almost 80 mph, Koch only throws it 7.42% of the time, making it his fourth pitch in his repertoire.
Thrown 48% of the time, Koch’s fastball averages 92 mph and did not fool many hitters in 2019. He gave up a slash line of .409/.447/.841, so look for Koch to lower his fastball usage in 2020.
Koch threw 102 very effective cutters in 2019, holding hitters to a .190/.320/.381 slash line. The pitch averages 89 mph, and Koch uses it to get his fair share of GBs, as evident by his 52.6% GB rate.
Koch’s primary pitch is his fastball which he throws about 42% of the time. The pitch was only able to register a whiff rate of 4.3% and batters mashed off of it, hitting .327 with 12 home runs. Those long balls were good enough to warrant an astronomical .381 ISO
Koch’s go-to when he’s not throwing his fastball is his cutter, which was above-average in 2018. Hitters chased on 27% of Koch’s cutters, which helped him put up a positive pVal last season.
As a primary offspeed offering Koch relies on his changeup. The pitch has actually been surprisingly effective as hitters couldn’t manage to keep their OPS over .500 when facing the pitch.
Koch mixes in a slider as the final pitch in his repertoire. The pitch has been below-average for a breaking ball, putting up only a 9% whiff rate while giving up an OPS of .748.