Players · C · Pitcher · 2026 regular season
Cooper Criswell
- Age
- 30
- B/T
- R/R
- Height
- 6' 6"
- Weight
- 200 lb
- Number
- #88
- Born
- July 24, 1996 in Carrollton, GA, United States
- MLB debut
- August 27, 2021
- Drafted
- 2018, round 13
- College
- North Carolina
Compare with…vs Antonio Senzatelavs JT Brubakervs Justin Bruihl
- dbWAR
- 1.2 Regular season, 6 season(s)
- IP
- 40.2
- ERA
- 3.32
- FIP
- 3.79
- K/9
- 6.9
- FIP−
- 91 100 = avg
Cooper Criswell is a relief pitcher for the Seattle Mariners. In 2026 he struck out 31 batters over 40.2 innings across 37 appearances, going 4-2. His ERA of 3.32 was 20.6% lower than the league average of 4.18 — the second best on his team, and 136th of 539 among MLB pitchers with 20+ innings. Stripping out defence, his 3.79 FIP suggests that his ERA had some help behind him. He missed bats on 20.7% of swings (9.8% of every pitch he threw), walked 9.3% of the batters he faced and struck out 18.0%. His 0.4 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 regular season.
WAR by season
Pitching Regular season
Standard and advanced, by season. Regular-season games only.
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 85 | 76 | 18 | 3 | 6 | 17 | .237 | .289 | .421 | .299 | 20.0% |
| vs RHB | 87 | 75 | 23 | 0 | 10 | 14 | .307 | .391 | .333 | .332 | 16.1% |
Pitch sequencing
What Cooper Criswell throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Cooper Criswell throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Sinker | 183 | 90.7 | 2,058 | 48.6% | 11.1% | 46 | .413 | .959 | |
| Changeup | 170 | 85.3 | 1,547 | 41.8% | 22.6% | 49 | .224 | .625 | |
| Cutter | 127 | 87.1 | 2,303 | 50.4% | 27.9% | 26 | .154 | .664 | |
| Sweeper | 114 | 78.3 | 2,627 | 48.2% | 25.0% | 22 | .227 | .477 | |
| Four-Seam Fastball | 44 | 90.7 | 2,269 | 45.5% | 26.3% | 7 | — | — |
Compare Cooper Criswell with…
Side by side with up to three others.
Or read one already written — Cooper Criswell against:
Similar players
Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.
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.