Garrett Whitlock
RP · R/R · age 30.3 · BOSXIX-AOCTOBER OK
ACTIVE
5+000
6+000 / 6+000
3
5 of 5
2027 CLUB OPTION
Rule 5 (NYY) Dec'20
0 / 0
4 yr, $18.75M (2023-26), 2027-28 club options
Next 90 days, by the model
98%
<1%
<1%
2%
<1%
Pushing the cut risk around: this season's WAR (1.92) lowers it, last season's WAR (2.23) lowers it, age (30.26) raises it.
Context the model does not weigh: ZiPS projects 1.3 WAR, 1.9 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 1st among the returners (3.5 WAR against a bar of 0.4), which the calibrated model turns into 100% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 2nd (1.1 WAR, bar 0.0), worth 100% 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 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 (4 yr, $18.75M (2023-26), 2027-28 club options). 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. With real money left on the contract a claim is unlikely; the usual outcome is clearing waivers, then release, with the club paying the balance less what a new club pays him.
- 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
- Decide his contract option
- 2027 Club Option: the decision must be made inside the five-day quiet period after the World Series. If declined and he has six years of service, he is a free agent immediately.
- Article XX-B free agency
What the rules say about him
- Article XIX-A: five years, no forced assignment5+000 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+ years of service but under contract through 2028.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
- 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 2020 otherwise).
Transaction log
| Aug 29, 2026 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the 15-day injured list. |
| Aug 13, 2026 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 15-day injured list retroactive to August 10, 2026. Right elbow inflammation. |
| Jun 9, 2026 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the 15-day injured list. |
| May 28, 2026 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 15-day injured list retroactive to May 25, 2026. Left knee inflammation. |
| Apr 6, 2026 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the paternity list. |
| Apr 3, 2026 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the paternity list. |
| Nov 4, 2024 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the 60-day injured list. |
| Jun 2, 2024 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 60-day injured list. Left oblique strain. |
| Apr 17, 2024 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 15-day injured list. Left oblique strain. |
| Sep 10, 2023 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the bereavement list. |
| Sep 3, 2023 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the bereavement list. |
| Aug 13, 2023 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the 15-day injured list. |
| Jul 4, 2023 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 15-day injured list retroactive to July 3, 2023. Right elbow inflammation. |
| May 27, 2023 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the 15-day injured list. |
| Apr 28, 2023 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 15-day injured list retroactive to April 25, 2023. Right elbow ulnar neuritis. |
| Apr 11, 2023 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the 15-day injured list. |
| Mar 30, 2023 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 15-day injured list retroactive to March 27, 2023. Right hip surgery. |
| Nov 28, 2022 | Status change | Boston Red Sox activated RHP Garrett Whitlock. |
| Oct 6, 2022 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the 15-day injured list. |
| Sep 21, 2022 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 15-day injured list. Right hip impingement. |
| Jul 15, 2022 | Status change | Boston Red Sox activated RHP Garrett Whitlock. |
| Jun 10, 2022 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 15-day injured list retroactive to June 9, 2022. Right hip inflammation. |
| Oct 3, 2021 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the 10-day injured list. |
| Sep 21, 2021 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 10-day injured list. Right pectoral strain. |
| May 16, 2021 | Status change | Boston Red Sox activated RHP Garrett Whitlock from the 10-day injured list. |
| May 15, 2021 | Status change | Boston Red Sox placed RHP Garrett Whitlock on the 10-day injured list. |
| Dec 10, 2020 | Claimed off waivers | Boston Red Sox claimed RHP Garrett Whitlock off waivers from . |
| Dec 10, 2020 | Claimed off waivers | Boston Red Sox claimed RHP Garrett Whitlock off waivers from Trenton Thunder. |
| Dec 10, 2020 | Claimed off waivers | Boston Red Sox claimed P Garrett Whitlock off waivers. |
| Jul 20, 2017 | Signed | New York Yankees signed RHP Garrett Whitlock. |
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.