DataBaseball
2026
Foster Griffin headshot

Pitcher · 2026

Foster Griffin

Age
31
B/T
R/L
Height
6' 3"
Weight
225 lb
Number
#22
Born
July 27, 1995 in Orlando, FL, USA
MLB debut
July 27, 2020
Drafted
2014, round 1
High school
First Academy
Salary, 2026
$5.5M
dbWAR
1.3
1 season(s)
IP
133.1
ERA
3.31
FIP
4.20
K/9
8.2
FIP−
101
100 = avg

Foster Griffin is a starting pitcher for the Washington Nationals. In 2026 he struck out 122 batters over 133.1 innings across 23 appearances, 23 of them starts, going 12-4. His ERA of 3.31 was 20.8% lower than the league average of 4.18 — the second best on his team, and 130th of 467 among MLB pitchers with 20+ innings. Stripping out defence, his 4.20 FIP suggests that his ERA had some help behind him. He missed bats on 24.3% of swings (11.8% of every pitch he threw), walked 5.9% of the batters he faced and struck out 22.4%. His 1.3 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, 2026.

FIP4.20
K/98.2
WHIP1.11
WAR1.3

Platoon splits

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

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB143131236742.176.245.366.27029.4%
vs RHB40237093152580.251.302.411.31319.9%

Pitch sequencing

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

ShowBatter
CutterFour-seamSweeperChangeupSinkerCurveballSplitter

Select a count to see exactly what Foster Griffin throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2026.

Cutter32.4%69388.32,25854.7%21.4%
Four-Seam Fastball16.4%35191.52,09348.7%18.6%
Sweeper14.5%31079.92,53148.7%32.8%
Changeup10.4%22382.21,87333.6%34.4%
Sinker10.4%22291.32,04052.7%18.3%
Curveball10.0%21577.82,35546.0%24.5%
Splitter6.0%12881.31,31533.6%29.9%
Foster Griffin'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.

Pitching

Standard and advanced, by season.

Trend
20262323133.1124011649122323.314.201.118.22.2791011.3

Head to head

Put Foster Griffin beside up to three others.

Compare — add up to 3 more players
Foster Griffin

Similar players

Nearest 2026 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.