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Cooper Criswell played 5 major-league seasons (2021-2025) as a P (45). Career totals and every year-by-year line below come from the SABR/Lahman database (CC BY-SA), covering 1871-2025.
Showing 5 season lines
| Year | Age | Team | G | GS | W | L | SV | IP | SO | BB | ERA | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 25 | LAA | 1 | 1 | 0 | 1 | 0 | 1.1 | 0 | 0 | 20.26 | 21 |
| 2022 | 26 | TBA | 1 | 1 | 0 | 0 | 0 | 3.1 | 4 | 1 | 2.70 | 144 |
| 2023 | 27 | TBA | 10 | 0 | 1 | 1 | 0 | 33 | 27 | 11 | 5.73 | 75 |
| 2024 | 28 | BOS | 26 | 18 | 6 | 5 | 0 | 99.1 | 73 | 31 | 4.08 | 99 |
| 2025 | 29 | BOS | 7 | 1 | 1 | 0 | 1 | 17.2 | 9 | 5 | 3.57 | 115 |
| Year | Pos | G | GS | PO | A | E | DP |
|---|---|---|---|---|---|---|---|
| 2021 | P | 1 | 1 | 0 | 0 | 0 | 0 |
| 2022 | P | 1 | 1 | 0 | 0 | 0 | 0 |
| 2023 | P | 10 | 0 | 0 | 4 | 0 | 0 |
| 2024 | P | 26 | 18 | 8 | 4 | 0 | 1 |
| 2025 | P | 7 | 1 | 0 | 1 | 1 | 0 |
Team codes are the source codes (e.g. NYN for the New York Mets, BS1 for the 1875 Boston club). OPS+ is league-season normalized, not park-adjusted; unrecorded source values (such as RBI in the earliest recorded seasons) are absent, never zero-filled.
Cooper Criswell is a playable Legends Deck card, rated from real Statcast data and refreshed nightly: view the Cooper Criswell card.
Cooper Criswell appears in 3 archived official MLB transactions (1 trade), newest first.
| Date | Type | From | To | Details |
|---|---|---|---|---|
| Jan 23, 2026 | Trade | New York Mets | Seattle Mariners | New York Mets traded RHP Cooper Criswell to Seattle Mariners for cash. |
| Dec 13, 2023 | Signed as free agent | — | Boston Red Sox | Boston Red Sox signed free agent RHP Cooper Criswell. |
| Jun 28, 2018 | Signed as free agent | — | Los Angeles Angels | Los Angeles Angels signed free agent RHP Cooper Criswell to a minor league contract. |
From MLB’s official StatsAPI transactions feed (2011 to the current season, trades/signings/releases involving major-league clubs). Browse the full archive.
Every career total and season line is computed from the SABR / Sean Lahman baseball database (2025 edition, CC BY-SA 3.0), the same source behind our historical position leaderboards. Rate stats use league-season normalization only (OPS+ and ERA+ as marked, never park-adjusted); unrecorded early-era values stay absent rather than being invented. Career totals sum only what the source records.
Award winners and MVP / Cy Young / Rookie of the Year voting history come from the same database; the year pages live under MLB award voting history. Official transactions (2011 to the current season) come from the MLB StatsAPI feed on our transactions archive.