Moronta’s changeup came in about six ticks slower than his fastball and worked primarily as a chase pitch. The pitch hit the zone just 23.6% of the time, but got a 23.6% SwStr%.
Moronta threw his curveball on less than 1% of his pitches, so I wouldn’t expect the pitch to become a major contributor in the future.
Moronta’s fastball hit the zone 54.2% of the time, but saw his SwStr% drop for the second consecutive season. The pitch got an excellent 33.3% IFFB% and allowed a 19.4% line drive rate.
Moronta saw his slider’s SwStr% and O-Swing rate drop for the second straight year, which caused his K% to also drop. Thankfully, it was still an excellent 42.9%, and the pitch also got a 40% IFFB rate.
His fastball command leaves much to be desired, but Moronta stymied opponents to a .157 batting average and .056 ISO (three doubles and a homer) with his four-seamer. Clobbered in a limited 2017 sample, a velocity jump to 96.9 mph transformed his heater into another dangerous offering alongside his trusty slider. Now he just needs to find the plate with more regularity.
Used only a hair less often his fastball, Moronta mortgaged his slider to a .194 wOBA and 8.9 pVal. Opponents whiffed at an 18.4% clip, often chasing outside the zone (36.6%). He should keep deploying it as much as possible in order to rise up San Francisco’s bullpen hierarchy.