Josh Simpson
RP · L/L · age 29.1 · SEAXX-DOCTOBER OK
OPTIONED
1+108
1+139 / 1+139
1 (using one in 2026)
1 of 5
PRE-ARBITRATION / AUTO-RENEWAL
Purchased (MIA) Feb'26
1 / 1
none listed
Next 90 days, by the model
29%
52%
15%
2%
2%
Pushing the cut risk up: this season's WAR (-0.40) raises it, age (29.07) raises it, last season's WAR (-0.43) raises it.
Context the model does not weigh: ZiPS projects -0.1 WAR, -0.4 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 14th among the returners (-1.4 WAR against a bar of 0.0), which the calibrated model turns into 21% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 13th (-0.1 WAR, bar 0.0), worth 31% 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 minors
- Yes, 1 option year left. 1 of the five optional assignments for 2026 remain. A 2026 option year is already used (143 days), so further trips this season cost nothing extra. Once down he must stay 15 days unless he replaces an injured or traded player. An option does not trigger his Article XX-D right; only an outright would.
- Option years and the 20-day rule · Five optional assignments per season · Minimum stay on option
- 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. 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
- renew him for next year
- Pre-arbitration: the club sets his 2027 salary near the minimum ($780,000 floor) and he has no leverage beyond a non-tender.
- Minimum salaries · Tender deadline
What the rules say about him
- Option years and the 20-day rule1 option year left entering 2026; 143 option days this season uses one (0 after 2026).A season with fewer than 20 days on optional assignment does not count as an option year, and those days count as Major League service. 2022-2026 Basic Agreement, Article XIX(E) and XXI(B), p. 98 (the number itself is in Major League Rule 7(c))
- Five optional assignments per seasonOptioned 4 times this season that count toward the cap of 5: 1 left.A player can be optioned at most five times in a season; a sixth trip requires outright waivers. 2022-2026 Basic Agreement, Article XIX(E), p. 98 (the number itself is in Major League Rule 7(c))
- Article XX-D: the right to walkOutrighted before (Nov 2024): 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
- 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 2022 otherwise).
Option years, season by season
| Season | Days on option | Option year used | Stints |
|---|---|---|---|
| 2026 | 143 | yes | Mar 13, 2026 to May 1, 2026 (37d, spring training)May 2, 2026 to May 4, 2026 (2d)May 14, 2026 to Jun 27, 2026 (44d)Jun 30, 2026 to Aug 2, 2026 (33d)Aug 19, 2026 to now (27d) |
| 2025 | 9 | no (under 20) | Aug 27, 2025 to Sep 5, 2025 (9d) |
| 2024 | 28 | yes | Sep 3, 2024 to Oct 1, 2024 (28d) |
| 2023 | 181 | yes | Mar 20, 2023 to Sep 12, 2023 (166d, spring training)Sep 17, 2023 to Oct 2, 2023 (15d) |
Transaction log
| Aug 19, 2026 | Optioned | Seattle Mariners optioned LHP Josh Simpson to Tacoma Rainiers. |
| Aug 2, 2026 | Recalled | Seattle Mariners recalled LHP Josh Simpson from Tacoma Rainiers. |
| Jun 30, 2026 | Optioned | Seattle Mariners optioned LHP Josh Simpson to Tacoma Rainiers. |
| Jun 27, 2026 | Recalled | Seattle Mariners recalled LHP Josh Simpson from Tacoma Rainiers. |
| May 14, 2026 | Optioned | Seattle Mariners optioned LHP Josh Simpson to Tacoma Rainiers. |
| May 4, 2026 | Recalled | Seattle Mariners recalled LHP Josh Simpson from Tacoma Rainiers. |
| May 2, 2026 | Optioned | Seattle Mariners optioned LHP Josh Simpson to Tacoma Rainiers. |
| May 1, 2026 | Recalled | Seattle Mariners recalled LHP Josh Simpson from Tacoma Rainiers. |
| Mar 13, 2026 | Optioned | Seattle Mariners optioned LHP Josh Simpson to Tacoma Rainiers. |
| Feb 16, 2026 | Traded | Miami Marlins traded LHP Josh Simpson to Seattle Mariners for cash. |
| Feb 12, 2026 | Designated for assignment | Miami Marlins designated LHP Josh Simpson for assignment. |
| Sep 5, 2025 | Recalled | Miami Marlins recalled LHP Josh Simpson from Jacksonville Jumbo Shrimp. |
| Aug 27, 2025 | Optioned | Miami Marlins optioned LHP Josh Simpson to Jacksonville Jumbo Shrimp. |
| Jun 21, 2025 | Contract selected | Miami Marlins selected the contract of LHP Josh Simpson from Jacksonville Jumbo Shrimp. |
| Nov 4, 2024 | Outrighted | Miami Marlins sent LHP Josh Simpson outright to Jacksonville Jumbo Shrimp. |
| Oct 1, 2024 | Recalled | Miami Marlins recalled LHP Josh Simpson from Jacksonville Jumbo Shrimp. |
| Sep 3, 2024 | Optioned | Miami Marlins optioned LHP Josh Simpson to Jacksonville Jumbo Shrimp. |
| Apr 20, 2024 | Status change | Miami Marlins placed LHP Josh Simpson on the 60-day injured list. Left elbow ulnar neuritis. |
| Mar 28, 2024 | Status change | Miami Marlins placed LHP Josh Simpson on the 15-day injured list retroactive to March 25, 2024. Left elbow ulnar neuritis. |
| Oct 5, 2023 | Status change | Miami Marlins activated LHP Josh Simpson. |
| Oct 2, 2023 | Recalled | Miami Marlins recalled LHP Josh Simpson from Jacksonville Jumbo Shrimp. |
| Sep 17, 2023 | Optioned | Miami Marlins optioned LHP Josh Simpson to Jacksonville Jumbo Shrimp. |
| Sep 12, 2023 | Recalled | Miami Marlins recalled LHP Josh Simpson from Jacksonville Jumbo Shrimp. |
| Mar 20, 2023 | Optioned | Miami Marlins optioned LHP Josh Simpson to Jacksonville Jumbo Shrimp. |
| Nov 15, 2022 | Contract selected | Miami Marlins selected the contract of LHP Josh Simpson from Jacksonville Jumbo Shrimp. |
| Jun 11, 2019 | Signed | Miami Marlins signed LHP Josh Simpson. |
Service through 2025 per FanGraphs RosterResource; options and this-season service reconstructed from the MLB transaction log (reconstruction; FanGraphs shows 1). Rule 5 exposure deadline Nov 17, 2026.