Alec Gamboa
RP · S/L · age 29.7 · BOSXIX-A (POSTED)OCTOBER OK
ACTIVE
0+000
0+050 / 0+063
3 (using one in 2026)
0 of 5
PRE-ARBITRATION / AUTO-RENEWAL
Free Agent (KBO) Dec'25
0 / 0
none listed
Next 90 days, by the model
83%
4%
10%
3%
<1%
Pushing the cut risk around: age (29.66) raises it, this season's ERA (1.29) lowers it, time with the club (133) raises it.
Context the model does not weigh: ZiPS projects -0.0 WAR, 0.4 WAR this season; 13 RP on the 40-man, of whom Aroldis Chapman 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?
BOS returns 12 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 6th among the returners (0.8 WAR against a bar of 0.4), 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 10th (-0.0 WAR, bar 0.0), worth 83% kept on the same model.
| By recent record: returning RP | Proj. WAR |
|---|---|
| 1. Garrett Whitlock | 3.5 |
| 2. Justin Slaten | 1.6 |
| 3. Tayron Guerrero | 1.6 |
| 4. Brayan Bello | 1.2 |
| 5. Erik Miller | 0.9 |
| 6. Alec Gamboa | 0.8 |
| 7. Greg Weissert | 0.7 |
| 8. Tyler Samaniego | 0.4 |
| 9. Zack Kellylast job | 0.4 |
| 10. Wyatt Olds | 0.2 |
| 11. Jovani Moran | 0.1 |
| 12. Raymond Burgos | 0.1 |
| By ZiPS / Steamer: returning RP | Proj. WAR |
|---|---|
| 1. Brayan Bello | 2.0 |
| 2. Garrett Whitlock | 1.1 |
| 3. Jovani Moran | 0.5 |
| 4. Justin Slaten | 0.3 |
| 5. Erik Miller | 0.3 |
| 6. Greg Weissert | 0.2 |
| 7. Zack Kelly | 0.1 |
| 8. Tyler Samaniego | 0.1 |
| 9. Raymond Burgoslast job | 0.0 |
| 10. Alec Gamboa | -0.0 |
| 11. Tayron Guerrero | -0.1 |
| 12. Wyatt Olds | -0.2 |
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 (or, for a posted player, a contractual clause) 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.
- 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
- Article XIX-A: five years, no forced assignmentPosted from NPB/KBO: posted players almost always negotiate Article XIX-A consent rights into the contract.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
- 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 | 84 | yes | May 6, 2026 to Jun 6, 2026 (31d)Jun 10, 2026 to Jul 1, 2026 (21d)Jul 6, 2026 to Jul 17, 2026 (11d)Jul 18, 2026 to Jul 22, 2026 (4d)Jul 26, 2026 to Aug 12, 2026 (17d) |
Transaction log
| Aug 12, 2026 | Recalled | Boston Red Sox recalled LHP Alec Gamboa from Worcester Red Sox. |
| Jul 26, 2026 | Optioned | Boston Red Sox optioned LHP Alec Gamboa to Worcester Red Sox. |
| Jul 22, 2026 | Recalled | Boston Red Sox recalled LHP Alec Gamboa from Worcester Red Sox. |
| Jul 18, 2026 | Optioned | Boston Red Sox optioned LHP Alec Gamboa to Worcester Red Sox. |
| Jul 17, 2026 | Recalled | Boston Red Sox recalled LHP Alec Gamboa from Worcester Red Sox. |
| Jul 6, 2026 | Optioned | Boston Red Sox optioned LHP Alec Gamboa to Worcester Red Sox. |
| Jul 1, 2026 | Recalled | Boston Red Sox recalled LHP Alec Gamboa from Worcester Red Sox. |
| Jun 10, 2026 | Optioned | Boston Red Sox optioned LHP Alec Gamboa to Worcester Red Sox. |
| Jun 6, 2026 | Recalled | Boston Red Sox recalled LHP Alec Gamboa from Worcester Red Sox. |
| May 6, 2026 | Optioned | Boston Red Sox optioned LHP Alec Gamboa to Worcester Red Sox. |
| May 4, 2026 | Contract selected | Boston Red Sox selected the contract of LHP Alec Gamboa from Worcester Red Sox. |
| Dec 18, 2025 | Signed as free agent | Boston Red Sox signed free agent LHP Alec Gamboa to a minor league contract. |
| Jun 11, 2019 | Signed | Los Angeles Dodgers signed LHP Alec Gamboa. |
Service through 2025 per FanGraphs RosterResource; options and this-season service reconstructed from the MLB transaction log (reconstruction; FanGraphs shows 3). Rule 5 exposure deadline Nov 17, 2026.