Gallegos threw his changeup all of seven times this past year and all to LHB. It had a 12.5% swinging K rate and 37.5% zone rate in that incredibly small sample. Similar to last year, this is a pitch that he hardly ever throws.
His bread and butter, the four-seamer held batters to a very impressive .260 wOBA (.287 xwOBA). It may not be the most explosive of fastballs at 93 .7 mph, but it did generate a respectable 22.9% whiff rate, up from last year’s 14.9%.
Gallegos threw his slider 44.2% of the time up from 35.7% in 2018. And with good reason. It was filthy returning a massive 49.6% whiff rate. It also generated a 46.2% chase rate and held a 38.2% zone rate. Opposing hitters were held to just a .192 wOBA (.208 xwOBA). That’s a money pitch.
This 94 mph four-seamer was Gallegos’ primary pitch in 2018. He did not allow a home run with it and limited hard contact overall. Gallegos was unable to generate many punchouts, however, primarily due to a low 7% swinging-strike rate
The slider was Gallegos’ strikeout pitch in 2018; he generated an excellent 47% K rate and 12% swinging-strike rate with it. He did allow two home runs on 65 sliders as well as a .500 ISO.
Gallegos threw nine changeups in 2018 and allowed one hit in two at-bats. He did throw six of the pitches for strikes and generated good movement with the changeup.