Trent Thornton
RP · R/R · age 33 · CHCXIX-AXX-B FAOCTOBER OK
15-DAY IL (Sprained ankle)
5+148
6+108 / 6+121
0
n/a of 5
FREE AGENT (XX-B) UNLESS SIGNED
Free Agent (SEA) Jan'26
0 / 1
none listed
Next 90 days, by the model
86%
9%
<1%
2%
3%
Pushing the cut risk around: this season's WAR (-0.48) raises it, age (32.96) raises it, this season's innings (48.10) lowers it.
Context the model does not weigh: ZiPS projects 0.0 WAR, -0.5 WAR this season; 20 RP on the 40-man, of whom Aaron Civale, Trent Thornton are 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?
CHC returns 18 RP on the 40-man once 2 free agents leave; about 9 RP jobs survive a normal winter. By his own recent record he ranks 19th among the returners (-0.5 WAR against a bar of 0.5), which the calibrated model turns into 89% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 19th (0.0 WAR, bar 0.2), worth 97% kept on the same model.
| By recent record: returning RP | Proj. WAR |
|---|---|
| 1. Edward Cabrera | 0.9 |
| 2. Daniel Palencia | 0.9 |
| 3. Hunter Harvey | 0.8 |
| 4. Colin Rea | 0.8 |
| 5. Phil Maton | 0.7 |
| 6. Shelby Miller | 0.6 |
| 7. Jacob Webb | 0.6 |
| 8. Riley Martin | 0.5 |
| 9. Caleb Thielbarlast job | 0.5 |
| 10. Tyler Ferguson | 0.3 |
| 11. Javier Assad | 0.3 |
| 12. Jayden Murray | 0.1 |
| By ZiPS / Steamer: returning RP | Proj. WAR |
|---|---|
| 1. Edward Cabrera | 1.7 |
| 2. Hunter Harvey | 0.8 |
| 3. Colin Rea | 0.8 |
| 4. Daniel Palencia | 0.5 |
| 5. Caleb Thielbar | 0.5 |
| 6. Javier Assad | 0.5 |
| 7. Phil Maton | 0.2 |
| 8. Porter Hodge | 0.2 |
| 9. Shelby Millerlast job | 0.2 |
| 10. Tyler Ferguson | 0.1 |
| 11. Ethan Roberts | 0.1 |
| 12. Jacob Webb | 0.0 |
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
- Not without his consent: with five years of service he can refuse the assignment or elect free agency instead. The club's only unilateral moves are to keep him, trade him, or release him.
- Article XIX-A: five years, no forced assignment
- 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. If he clears, he cannot be outrighted without his consent: he can refuse and force a release with his contract intact, or elect free agency (forfeiting termination pay). 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. Because he is on the injured list he cannot be outrighted until he is healthy and reinstated, so a DFA now would have to end in a trade or a release.
- Designated for assignment: 7 days · Outright waivers · Article XIX-A: five years, no forced outright
- 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
- Let the season end
- He becomes an Article XX-B free agent at 9 AM ET the day after the World Series; only the club can talk to him for five days after that. A qualifying offer is possible only if he has been with the club since Opening Day and never received one before.
- Article XX-B free agency · Qualifying offer
What the rules say about him
- Article XIX-A: five years, no forced assignment5+148 of MLB service through 2025: can refuse an optional assignment and cannot be outrighted without consent.A player with five or more years of Major League service cannot be assigned anywhere but another Major League club without his written consent. 2022-2026 Basic Agreement, Article XIX(A)(2), p. 94
- Article XIX-A: five years, no forced outright5+ years of service: an outright assignment requires his consent; otherwise the club must keep, trade or release him.A player with five or more years of service can refuse an outright assignment altogether; the club must then keep him, trade him, or release him. 2022-2026 Basic Agreement, Article XIX(A)(2), p. 94
- Article XX-B free agency6+121 of service with no contract for 2027: Article XX-B free agent the day after the World Series.Six or more years of service with an expiring contract: free agent at 9 AM ET the day after the last World Series game. 2022-2026 Basic Agreement, Article XX(B)(1)-(2), p. 102
- Injured players cannot be sent downOn the Major League injured list: cannot be optioned or outrighted until he is healthy and reinstated, so an injured fringe player keeps his roster spot by default.No assignment to a minor-league club while a player is on a Major League injured list, and an injured player who cannot play cannot be optioned or outrighted. 2022-2026 Basic Agreement, Article XIX(C)(1)-(2), p. 96
- 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 2018 otherwise).
Option years, season by season
| Season | Days on option | Option year used | Stints |
|---|---|---|---|
| 2023 | 107 | yes | Mar 25, 2023 to Jun 19, 2023 (81d, spring training)Jul 1, 2023 to Jul 21, 2023 (20d)Jul 26, 2023 to Aug 1, 2023 (6d, within 24h of trade) |
| 2022 | 91 | yes | May 14, 2022 to May 31, 2022 (17d)Jul 6, 2022 to Jul 30, 2022 (24d)Aug 6, 2022 to Aug 7, 2022 (1d)Aug 17, 2022 to Oct 5, 2022 (49d) |
| 2021 | 60 | yes | Jul 7, 2021 to Jul 25, 2021 (18d)Jul 31, 2021 to Aug 7, 2021 (7d)Aug 8, 2021 to Aug 10, 2021 (2d)Aug 11, 2021 to Aug 11, 2021 (0d)Aug 31, 2021 to Sep 12, 2021 (12d)Sep 13, 2021 to Oct 5, 2021 (21d) |
Transaction log
| Sep 12, 2026 | Status change | Chicago Cubs placed RHP Trent Thornton on the 15-day injured list. Left ankle sprain. |
| Jun 12, 2026 | Status change | Chicago Cubs activated RHP Trent Thornton from the paternity list. |
| Jun 9, 2026 | Status change | Chicago Cubs placed RHP Trent Thornton on the paternity list. |
| May 6, 2026 | Contract selected | Chicago Cubs selected the contract of RHP Trent Thornton from Iowa Cubs. |
| Jan 23, 2026 | Signed as free agent | Chicago Cubs signed free agent RHP Trent Thornton to a minor league contract. |
| Nov 21, 2025 | Declared free agent | RHP Trent Thornton elected free agency. |
| Nov 5, 2025 | Status change | Seattle Mariners activated RHP Trent Thornton from the 60-day injured list. |
| Aug 19, 2025 | Status change | Seattle Mariners transferred RHP Trent Thornton from the 15-day injured list to the 60-day injured list. Left achilles tear. |
| Aug 1, 2025 | Status change | Seattle Mariners placed RHP Trent Thornton on the 15-day injured list. Left achilles tear. |
| Jun 7, 2025 | Status change | Seattle Mariners activated RHP Trent Thornton from the 15-day injured list. |
| May 9, 2025 | Status change | Seattle Mariners placed RHP Trent Thornton on the 15-day injured list retroactive to May 6, 2025. Appendicitis. |
| Aug 1, 2023 | Recalled | Seattle Mariners recalled RHP Trent Thornton from Tacoma Rainiers. |
| Jul 26, 2023 | Optioned | Seattle Mariners optioned RHP Trent Thornton to Tacoma Rainiers. |
| Jul 26, 2023 | Traded | Toronto Blue Jays traded RHP Trent Thornton to Seattle Mariners for SS Mason McCoy. |
| Jul 21, 2023 | Designated for assignment | Toronto Blue Jays designated RHP Trent Thornton for assignment. |
| Jul 1, 2023 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Jun 19, 2023 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton from Buffalo Bisons. |
| Mar 25, 2023 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Oct 9, 2022 | Status change | Toronto Blue Jays activated RHP Trent Thornton. |
| Oct 5, 2022 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton from Buffalo Bisons. |
| Aug 17, 2022 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Aug 7, 2022 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton from Buffalo Bisons. |
| Aug 6, 2022 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Jul 30, 2022 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton from Buffalo Bisons. |
| Jul 6, 2022 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| May 31, 2022 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton from Buffalo Bisons. |
| May 14, 2022 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Oct 5, 2021 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton, and from Buffalo Bisons. |
| Sep 13, 2021 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Sep 12, 2021 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton from Buffalo Bisons. |
| Aug 31, 2021 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Aug 11, 2021 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton from Buffalo Bisons. |
| Aug 11, 2021 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Aug 10, 2021 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton from Buffalo Bisons. |
| Aug 8, 2021 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Aug 7, 2021 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton from Buffalo Bisons. |
| Jul 31, 2021 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Jul 25, 2021 | Recalled | Toronto Blue Jays recalled RHP Trent Thornton from Buffalo Bisons. |
| Jul 7, 2021 | Optioned | Toronto Blue Jays optioned RHP Trent Thornton to Buffalo Bisons. |
| Oct 30, 2020 | Status change | Toronto Blue Jays activated P Trent Thornton from the 60 day injured list. |
Service through 2025 per FanGraphs RosterResource; options and this-season service reconstructed from the MLB transaction log (reconstruction; FanGraphs shows n/a). Rule 5 exposure deadline Nov 17, 2026.