Baseball · All Baseball players
Cooper Criswell
MLB
About Cooper Criswell
Cooper Timothy Criswell (born July 24, 1996) is an American professional baseball pitcher for the Seattle Mariners of Major League Baseball (MLB). He has previously played in MLB for the Los Angeles Angels, Tampa Bay Rays, and Boston Red Sox.
Bio summary from Wikipedia.
Player Stats
| W | 4 | L | 2 | ERA | 3.32 | G | 37 |
|---|---|---|---|---|---|---|---|
| GS | 0 | SV | 1 | IP | 40.2 | H | 41 |
| R | 18 | ER | 15 | BB | 16 | SO | 31 |
| WHIP | 1.402 | H/9 | 9.1 | HR/9 | 0.7 | BB/9 | 3.5 |
| K/9 | 6.9 | FIP | 3.79 | WAR | 0.6 |
2026 pitching — Baseball-Reference
Career — Lahman, through 2025
Pitching
| Year | Team | W | L | ERA | G | GS | CG | SHO | SV | IP | H | HR | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | LAA | 0 | 1 | 20.25 | 1 | 1 | 0 | 0 | 0 | 1.1 | 6 | 0 | 0 | 0 |
| 2022 | TBA | 0 | 0 | 2.70 | 1 | 1 | 0 | 0 | 0 | 3.1 | 2 | 0 | 1 | 4 |
| 2023 | TBA | 1 | 1 | 5.73 | 10 | 0 | 0 | 0 | 0 | 33.0 | 40 | 6 | 11 | 27 |
| 2024 | BOS | 6 | 5 | 4.08 | 26 | 18 | 0 | 0 | 0 | 99.1 | 103 | 10 | 31 | 73 |
| 2025 | BOS | 1 | 0 | 3.57 | 7 | 1 | 0 | 0 | 1 | 17.2 | 23 | 3 | 5 | 9 |
Season lines from the Lahman Baseball Database (Version 2025, via SABR), joined through the Chadwick Register ID crosswalk. The databank runs through the 2025 season — the current season is the 2026 line below, from the MLB Stats API.
2026 Season — MLB Stats API
Pitching
| W | L | ERA | G | GS | CG | SHO | SV | IP | H | R | ER | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 2 | 3.32 | 37 | 0 | 0 | 0 | 1 | 40.2 | 41 | 18 | 15 | 3 | 16 | 31 | 1.40 |
2026 regular-season line from the MLB Stats API (statsapi.mlb.com), pulled when this page was built. Multi-team stints are combined; rate stats are recomputed from the combined totals.
Watch Cooper Criswell Highlights
“Cooper Criswell 2026 MLB Highlights!” · Open on YouTube · More Cooper Criswell videos