DataBaseball
2026
Jackson Tetreault headshot

Pitcher · 2022

Jackson Tetreault

Age
26
B/T
R/R
Height
6' 5"
Weight
189 lb
Born
June 3, 1996 in Ruskin, FL, USA
MLB debut
June 14, 2022
dbWAR
-.3
1 season(s)
IP
21.0
ERA
5.14
FIP
6.16
K/9
3.9
FIP−
155
100 = avg

Jackson Tetreault is a starting pitcher for the Washington Nationals. In 2022 he struck out 9 batters over 21.0 innings across 4 appearances, 4 of them starts, going 2-2. His ERA of 5.14 was 29.6% higher than the league average of 3.97 — 14th of 19 on his team, and 440th of 546 among MLB pitchers with 20+ innings. Stripping out defence, his 6.16 FIP suggests that his ERA had some help behind him. He missed bats on 18.1% of swings (7.9% of every pitch he threw), walked 10.4% of the batters he faced and struck out 9.4%. His -0.3 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, 2022.

FIP6.16
K/93.9
WHIP1.57
WAR-.3

Pitching

Standard and advanced, by season.

Trend
20224421.022023129105.146.161.573.94.3130155-0.3

Platoon splits

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

Opponent batting by the side the hitter bats from, 2022. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB38356034.171.237.257.22610.5%
vs RHB584917475.347.414.653.4448.6%

Pitch sequencing

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

ShowBatter
Four-seamCutterCurveballChangeup

Select a count to see exactly what Jackson Tetreault throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2022.

Four-Seam Fastball57.8%21194.62,01735.5%14.1%
Cutter31.8%11686.51,99344.0%23.6%
Curveball7.7%2882.22,11828.6%30.0%
Changeup2.7%1085.91,51320.0%0.0%
Jackson Tetreault'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

Put Jackson Tetreault beside up to three others.

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Jackson Tetreault

Similar players

Nearest 2022 seasons by command, run prevention and role, on rate statistics rather than totals.

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.