Brayan Bello
RP · R/R · age 27.3 · BOSXX-DOCTOBER OK
ACTIVE
3+082
4+047 / 4+060
2 (using one in 2026)
4 of 5
SIGNED THRU 2029 + 2030 CLUB OPTION
Amateur FA (DOM) Jul'17
0 / 0
6 yr, $55M (2024-29), 2030 club option
Next 90 days, by the model
87%
1%
8%
4%
<1%
Pushing the cut risk around: last season's WAR (1.88) lowers it, this season's innings (102.20) lowers it, share of appearances as a starter (0.97) lowers it.
Context the model does not weigh: ZiPS projects 2.3 WAR, 0.6 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 4th among the returners (1.2 WAR against a bar of 0.4), which the calibrated model turns into 97% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 1st (2.0 WAR, bar 0.0), worth 98% 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 minors
- Yes, 2 option years left. 4 of the five optional assignments for 2026 remain. A 2026 option year is already used (37 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 (6 yr, $55M (2024-29), 2030 club option). Three-plus years of service 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. 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 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. The guaranteed years remain owed in full. 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
- Under contract (6 yr, $55M (2024-29), 2030 club option): nothing to decide this winter. Moving him later means trading the contract or releasing him and paying the guaranteed years in full.
- Release waivers and termination pay
What the rules say about him
- Option years and the 20-day rule2 option years left entering 2026; 37 option days this season uses one (1 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 1 time this season that count toward the cap of 5: 4 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 walk3+082 of service (3+): may elect free agency if outrighted, now or deferred to season's end.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 2021 otherwise).
Option years, season by season
| Season | Days on option | Option year used | Stints |
|---|---|---|---|
| 2026 | 37 | yes | Jun 5, 2026 to Jul 12, 2026 (37d) |
| 2023 | 4 | no (under 20) | Apr 24, 2023 to Apr 28, 2023 (4d) |
| 2022 | 100 | yes | Mar 25, 2022 to Jul 6, 2022 (90d, spring training)Jul 12, 2022 to Jul 22, 2022 (10d) |
Transaction log
| Jul 12, 2026 | Recalled | Boston Red Sox recalled RHP Brayan Bello from Worcester Red Sox. |
| Jun 5, 2026 | Optioned | Boston Red Sox optioned RHP Brayan Bello to Worcester Red Sox. |
| Apr 22, 2025 | Status change | Boston Red Sox activated RHP Brayan Bello from the 15-day injured list. |
| Mar 27, 2025 | Status change | Boston Red Sox placed RHP Brayan Bello on the 15-day injured list retroactive to March 24, 2025. Right shoulder strain. |
| Aug 12, 2024 | Status change | Boston Red Sox activated RHP Brayan Bello from the paternity list. |
| Aug 9, 2024 | Status change | Boston Red Sox placed RHP Brayan Bello on the paternity list. |
| May 12, 2024 | Status change | Boston Red Sox activated RHP Brayan Bello from the 15-day injured list. |
| Apr 24, 2024 | Status change | Boston Red Sox placed RHP Brayan Bello on the 15-day injured list retroactive to April 21, 2024. Right lat tightness. |
| Jul 25, 2023 | Status change | Boston Red Sox activated RHP Brayan Bello from the paternity list. |
| Jul 22, 2023 | Status change | Boston Red Sox placed RHP Brayan Bello on the paternity list. |
| Apr 28, 2023 | Recalled | Boston Red Sox recalled RHP Brayan Bello from Worcester Red Sox. |
| Apr 24, 2023 | Optioned | Boston Red Sox optioned RHP Brayan Bello to Worcester Red Sox. |
| Apr 17, 2023 | Status change | Boston Red Sox activated RHP Brayan Bello from the 15-day injured list. |
| Mar 30, 2023 | Status change | Boston Red Sox placed RHP Brayan Bello on the 15-day injured list retroactive to March 27, 2023. Right elbow inflammation. |
| Aug 24, 2022 | Status change | Boston Red Sox placed RHP Brayan Bello on the 15-day injured list. Right elbow inflammation. |
| Aug 4, 2022 | Status change | Boston Red Sox placed RHP Brayan Bello on the 15-day injured list. Left groin strain. |
| Jul 22, 2022 | Recalled | Boston Red Sox recalled RHP Brayan Bello from Worcester Red Sox. |
| Jul 12, 2022 | Optioned | Boston Red Sox optioned RHP Brayan Bello to Worcester Red Sox. |
| Jul 6, 2022 | Status change | Boston Red Sox activated RHP Brayan Bello. |
| Jul 6, 2022 | Recalled | Boston Red Sox recalled RHP Brayan Bello from Worcester Red Sox. |
| Mar 25, 2022 | Optioned | Boston Red Sox optioned RHP Brayan Bello to Worcester Red Sox. |
| Nov 19, 2021 | Contract selected | Boston Red Sox selected the contract of RHP Brayan Bello from Portland Sea Dogs. |
| Jul 2, 2017 | Signed as free agent | Boston Red Sox signed free agent RHP Brayan Bello to a minor league contract. |
Service through 2025 per FanGraphs RosterResource; options and this-season service reconstructed from the MLB transaction log (reconstruction; FanGraphs shows 2). Rule 5 exposure deadline Nov 17, 2026.