DataBaseball
2026
Jerry Vasto headshot

Pitcher · 2018

Jerry Vasto

Age
26
B/T
L/L
Height
6' 2"
Weight
195 lb
Born
February 12, 1992 in Atlantic Highlands, NJ, USA
MLB debut
June 10, 2018
dbWAR
-.1
1 season(s)
IP
4.1
ERA
8.31
FIP
5.70
K/9
8.3
FIP−
137
100 = avg

Jerry Vasto is a relief pitcher for the Kansas City Royals. In 2018 he struck out 4 batters over 4.1 innings across 6 appearances, going 0-1. His ERA of 8.31 was 100.2% higher than the league average of 4.15. Stripping out defence, his 5.70 FIP suggests he pitched better than his ERA shows. He missed bats on 17.0% of swings (8.3% of every pitch he threw), walked 9.5% of the batters he faced and struck out 19.0%. His -0.1 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2018.

FIP5.70
K/98.3
WHIP1.85
WAR-.1

Pitching

Standard and advanced, by season.

Trend
2018604.101064428.315.701.858.34.2200137-0.1

Platoon splits

How left- and right-handed hitters fare against him.

Opponent batting by the side the hitter bats from, 2018. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB881002.125.125.125.11025.0%
vs RHB13115122.455.5381.000.63115.4%

Pitch sequencing

What Jerry Vasto throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

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Four-seamSliderChangeup

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Pitch arsenal

What he throws, how hard, and how often it misses in 2018.

Four-Seam Fastball54.2%5291.02,35150.0%5.0%
Slider38.5%3784.62,20251.4%22.7%
Jerry Vasto's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters.

Head to head

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Jerry Vasto
How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.