Cooper Criswell
RP · R/R · age 30.1 · SEAOUT OF OPTIONSXX-DSUPER TWOOCTOBER OK
ACTIVE
1+143
2+143 / 2+143
0
n/a of 5
SALARY ARBITRATION ELIGIBLE ("SUPER TWO")
Purchased (NYM) Jan'26
1 / 4
1 yr, $800k (2026)
Next 90 days, by the model
67%
23%
1%
8%
1%
Pushing the cut risk up: age (30.14) raises it, this season's WAR (0.20) raises it, option years used (4) raises it.
Context the model does not weigh: ZiPS projects 0.8 WAR, 0.2 WAR this season; 15 RP on the 40-man, of whom Hoby Milner is headed to free agency.
Trained on every 40-man roster snapshot since 2011 and what happened in the following 90 days; it sees roster status, options, service, history and last season's line, not this season's performance or the club's intentions. How well it does.
Is there a job for him next year?
SEA returns 14 RP on the 40-man once 1 free agent leaves; about 9 RP jobs survive a normal winter. By his own recent record he ranks 5th among the returners (0.6 WAR against a bar of 0.0), which the calibrated model turns into 56% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 4th (0.5 WAR, bar 0.0), worth 56% kept on the same model.
| By recent record: returning RP | Proj. WAR |
|---|---|
| 1. Andres Muñoz | 2.1 |
| 2. Matt Brash | 1.3 |
| 3. Gabe Speier | 1.3 |
| 4. Jose A. Ferrer | 1.1 |
| 5. Cooper Criswell | 0.6 |
| 6. Seranthony Dominguez | 0.3 |
| 7. Michael Rucker | 0.1 |
| 8. Eduard Bazardo | 0.0 |
| 9. Robinson Ortizlast job | 0.0 |
| 10. Cole Wilcox | -0.1 |
| 11. Troy Taylor | -0.3 |
| 12. Nick Davila | -0.4 |
| By ZiPS / Steamer: returning RP | Proj. WAR |
|---|---|
| 1. Andres Muñoz | 0.8 |
| 2. Matt Brash | 0.7 |
| 3. Jose A. Ferrer | 0.7 |
| 4. Cooper Criswell | 0.5 |
| 5. Gabe Speier | 0.5 |
| 6. Seranthony Dominguez | 0.5 |
| 7. Eduard Bazardo | 0.4 |
| 8. Cole Wilcox | 0.2 |
| 9. Nick Davilalast job | 0.0 |
| 10. Michael Rucker | 0.0 |
| 11. Robinson Ortiz | -0.1 |
| 12. Carlos M. Vargas | -0.1 |
Departing free agents are excluded; players on club, mutual or player options are counted as returning. The kept probability is calibrated on every September since 2012 using the recent-record projection; the ZiPS/Steamer reading uses the same model with a different ranking, so treat it as a second opinion rather than a calibrated number. Salary enters once arbitration projections publish in October.
October: Post-season eligible
On the 40-man before noon ET Sep 1. He stays eligible as long as he remains on the 40-man or 60-day IL through the post-season; an outright after the cutoff would end automatic eligibility.
The post-season eligibility list is fixed at noon ET on September 1: everyone on the 40-man, the 60-day IL or the military list at that moment, who then stays there without interruption. Attachment 25 (Major League Rule 40)
What happens if the club…
- option him to the minorsBLOCKED
- Out of options: the only route to the minors is outright waivers, where any club can claim him for $50,000.
- Out of options
- designate him for assignment (or put him on outright waivers)
- The club has 7 days to trade him, pass him through outright waivers, or release him; he is paid at the major-league rate and keeps accruing service in the meantime. On outright waivers any club can claim him for $50,000, worst record first, and the claiming club takes his contract (1 yr, $800k (2026)). He was outrighted before (1x) give him the Article XX-D choice: elect free agency immediately (giving up the rest of his salary) or accept the assignment, keep getting paid, and elect free agency after the season unless he is added back to a 40-man first. Post-season: an outright after the September 1 cutoff ends his automatic eligibility. He could only return as an approved injury replacement, and only if he accepts the outright and stays on a minor-league reserve list in the organization without interruption; a release makes him ineligible for anyone this October.
- Designated for assignment: 7 days · Outright waivers · Article XX-D: the right to walk
- release him
- Release waivers cost a claiming club $1 but the claimant assumes the whole contract, so expensive players clear. The club owes the full unpaid balance of this season's salary, offset by whatever another club pays him this year. A released player is not post-season eligible for any club this year.
- Release waivers and termination pay · Which rate a split contract pays at release
- trade himBLOCKED
- Not now: players on major-league contracts cannot be traded after the Aug 3 deadline until the day after the World Series.
- Trade deadline · 10-and-5 rights · June 15 no-trade for free-agent signees
- non-tender him
- At the tender deadline (Nov 20) the club can decline to offer a contract: no waivers, no termination pay, and he can be re-signed the same night. Tendering means arbitration, where he cannot be cut more than 20% from this year's salary.
- Tender deadline · Arbitration: 3 to 6 years · Maximum salary cut
What the rules say about him
- Out of optionsUsed option years in 2021, 2023, 2024: cannot be sent down without clearing outright waivers.With no option years left, the only way to the minors is through irrevocable outright waivers. 2022-2026 Basic Agreement, Article XIX(E) and XIX(F), p. 98 (the number itself is in Major League Rules 7 and 8)
- Article XX-D: the right to walkOutrighted before (Jul 2022): a second outright lets him elect free agency, so he cannot be stashed in the minors against his will.A player with three or more years of service (or a Super Two), or any player being outrighted for the second time in his career, may elect free agency instead of accepting the outright. 2022-2026 Basic Agreement, Article XX(D)(1)-(2), (4), p. 110
- Super TwoProjects to 2+143: above last year's Super Two cutoff (2+140), so arbitration-eligible a year early.A player with two but fewer than three years of service is arbitration-eligible if he had 86+ days last season and ranks in the top 22% of that group by total service; ties at the line all qualify. 2022-2026 Basic Agreement, Article VI(E)(1)(b), p. 17
- Post-season roster eligibilityOn the 40-man before noon ET Sep 1. He stays eligible as long as he remains on the 40-man or 60-day IL through the post-season; an outright after the cutoff would end automatic eligibility.The post-season eligibility list is fixed at noon ET on September 1: everyone on the 40-man, the 60-day IL or the military list at that moment, who then stays there without interruption. 2022-2026 Basic Agreement, Attachment 25, p. 253 (the number itself is in Major League Rule 40)
- Rule 5 clockOn a 40-man roster (would first be exposed after 2021 otherwise).
Option years, season by season
| Season | Days on option | Option year used | Stints |
|---|---|---|---|
| 2025 | 162 | yes | Apr 7, 2025 to Apr 26, 2025 (19d)Apr 27, 2025 to May 14, 2025 (17d)May 16, 2025 to May 24, 2025 (8d)May 25, 2025 to Jun 3, 2025 (9d)Jun 7, 2025 to Jul 2, 2025 (25d)Jul 3, 2025 to Jul 29, 2025 (26d)Aug 2, 2025 to Sep 29, 2025 (58d) |
| 2024 | 56 | yes | Mar 22, 2024 to Apr 13, 2024 (22d)Jun 18, 2024 to Jul 12, 2024 (24d)Sep 21, 2024 to Oct 1, 2024 (10d) |
| 2023 | 150 | yes | Apr 22, 2023 to May 21, 2023 (29d)May 27, 2023 to Jun 3, 2023 (7d)Jun 4, 2023 to Jun 6, 2023 (2d)Jun 8, 2023 to Jul 15, 2023 (37d)Jul 16, 2023 to Aug 10, 2023 (25d)Aug 12, 2023 to Aug 19, 2023 (7d)Aug 20, 2023 to Sep 30, 2023 (41d)Oct 1, 2023 to Nov 14, 2023 (2d) |
| 2022 | 3 | no (under 20) | Jul 16, 2022 to Jul 19, 2022 (3d) |
| 2021 | 35 | yes | Aug 28, 2021 to Sep 18, 2021 (21d)Sep 20, 2021 to Oct 5, 2021 (14d) |
Transaction log
| Aug 31, 2026 | Status change | Seattle Mariners activated RHP Cooper Criswell from the 60-day injured list. |
| Jul 3, 2026 | Status change | Seattle Mariners transferred RHP Cooper Criswell from the 15-day injured list to the 60-day injured list. Right shoulder strain. |
| Jun 9, 2026 | Status change | Seattle Mariners placed RHP Cooper Criswell on the 15-day injured list. Right shoulder strain. |
| Jan 23, 2026 | Traded | New York Mets traded RHP Cooper Criswell to Seattle Mariners for cash. |
| Jan 21, 2026 | Designated for assignment | New York Mets designated RHP Cooper Criswell for assignment. |
| Dec 5, 2025 | Claimed off waivers | New York Mets claimed RHP Cooper Criswell off waivers from Boston Red Sox. |
| Dec 4, 2025 | Designated for assignment | Boston Red Sox designated RHP Cooper Criswell for assignment. |
| Oct 3, 2025 | Status change | Boston Red Sox activated RHP Cooper Criswell. |
| Sep 29, 2025 | Recalled | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| Aug 2, 2025 | Optioned | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| Jul 29, 2025 | Recalled | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| Jul 3, 2025 | Optioned | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| Jul 2, 2025 | Recalled | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| Jun 7, 2025 | Optioned | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| Jun 3, 2025 | Recalled | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| May 25, 2025 | Optioned | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| May 24, 2025 | Recalled | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| May 15, 2025 | Optioned | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| May 14, 2025 | Recalled | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| Apr 27, 2025 | Optioned | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| Apr 26, 2025 | Recalled | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| Apr 7, 2025 | Optioned | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| Oct 1, 2024 | Recalled | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| Sep 21, 2024 | Optioned | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| Aug 16, 2024 | Status change | Boston Red Sox activated RHP Cooper Criswell from the 10-day injured list. |
| Aug 9, 2024 | Status change | Boston Red Sox placed RHP Cooper Criswell on the 10-day injured list retroactive to August 8, 2024. |
| Jul 12, 2024 | Recalled | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| Jun 18, 2024 | Optioned | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| Apr 13, 2024 | Recalled | Boston Red Sox recalled RHP Cooper Criswell from Worcester Red Sox. |
| Mar 22, 2024 | Optioned | Boston Red Sox optioned RHP Cooper Criswell to Worcester Red Sox. |
| Dec 13, 2023 | Signed as free agent | Boston Red Sox signed free agent RHP Cooper Criswell. |
| Nov 14, 2023 | Designated for assignment | Tampa Bay Rays designated RHP Cooper Criswell for assignment. |
| Oct 5, 2023 | Status change | Tampa Bay Rays activated RHP Cooper Criswell. |
| Oct 1, 2023 | Optioned | Tampa Bay Rays optioned RHP Cooper Criswell to Durham Bulls. |
| Sep 30, 2023 | Recalled | Tampa Bay Rays recalled RHP Cooper Criswell from Durham Bulls. |
| Aug 20, 2023 | Optioned | Tampa Bay Rays optioned RHP Cooper Criswell to Durham Bulls. |
| Aug 19, 2023 | Recalled | Tampa Bay Rays recalled RHP Cooper Criswell from Durham Bulls. |
| Aug 12, 2023 | Optioned | Tampa Bay Rays optioned RHP Cooper Criswell to Durham Bulls. |
| Aug 10, 2023 | Recalled | Tampa Bay Rays recalled RHP Cooper Criswell from Durham Bulls. |
| Jul 16, 2023 | Optioned | Tampa Bay Rays optioned RHP Cooper Criswell to Durham Bulls. |
Service through 2025 per FanGraphs RosterResource; options and this-season service reconstructed from the MLB transaction log (reconstruction; FanGraphs shows 0). Rule 5 exposure deadline Nov 17, 2026.