Brandon Williamson

RP · R/L · age 28.5 · CIN

XX-DOCTOBER OK

Roster status
ACTIVE
Service thru 2025
2+139
Service now / projected
3+139 / 3+139
Option years left (2026)
2
Assignments left this season
5 of 5
Contract (2027)
SALARY ARBITRATION ELIGIBLE
Acquired
Trade (SEA) Mar'22
Outrighted / DFA'd before
0 / 0
Contract
1 yr, $800k (2026)

Next 90 days, by the model

Stays put
76%
Designated
6%
Optioned
15%
Traded
2%
Released or non-tendered
<1%

Pushing the cut risk around: this season's WAR (-0.19) raises it, age (28.45) raises it, club's run differential (-145) raises it.

Context the model does not weigh: ZiPS projects 0.5 WAR, -0.2 WAR this season; 12 RP on the 40-man, of whom Brock Burke 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?

CIN returns 11 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 10th among the returners (-0.4 WAR against a bar of -0.4), which the calibrated model turns into 62% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 2nd (0.5 WAR, bar -0.0), worth 80% kept on the same model.

By recent record: returning RPProj. WAR
1. Graham Ashcraft1.6
2. Emilio Pagan1.1
3. Tejay Antone0.8
4. Pierce Johnson0.3
5. Zach McCambley0.2
6. Luis Mey0.2
7. Julian Garcia0.1
8. Tony Santillan-0.2
9. Connor Phillipslast job-0.4
10. Brandon Williamson-0.4
11. Zach Maxwell-0.7
By ZiPS / Steamer: returning RPProj. WAR
1. Graham Ashcraft0.6
2. Brandon Williamson0.5
3. Emilio Pagan0.4
4. Pierce Johnson0.3
5. Tony Santillan0.3
6. Connor Phillips0.2
7. Zach McCambley0.1
8. Julian Garcia0.0
9. Tejay Antonelast job-0.0
10. Zach Maxwell-0.1
11. Luis Mey-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, 2 option years left. 5 of the five optional assignments for 2026 remain. He has 0 option days this season; at 20 a 2026 option year is used and those days stop counting as service. 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 (1 yr, $800k (2026)). 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.
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
non-tender him
At the tender deadline (Nov 20) the club can decline to offer a contract: no waivers, no termination pay, and he can be re-signed the same night. Tendering means arbitration, where he cannot be cut more than 20% from this year's salary.
Tender deadline · Arbitration: 3 to 6 years · Maximum salary cut

What the rules say about him

Option years, season by season

SeasonDays on optionOption year usedStints
202347yesMar 24, 2023 to May 16, 2023 (47d, spring training)

Transaction log

Sep 1, 2026Status changeCincinnati Reds activated LHP Brandon Williamson from the 60-day injured list.
May 6, 2026Status changeCincinnati Reds transferred LHP Brandon Williamson from the 15-day injured list to the 60-day injured list. Left shoulder fatigue.
Apr 30, 2026Status changeCincinnati Reds placed LHP Brandon Williamson on the 15-day injured list. Left shoulder fatigue.
Nov 6, 2025Status changeCincinnati Reds activated LHP Brandon Williamson from the 60-day injured list.
Mar 26, 2025Status changeCincinnati Reds placed LHP Brandon Williamson on the 60-day injured list. Left UCL reconstruction.
Nov 4, 2024Status changeCincinnati Reds activated LHP Brandon Williamson from the 60-day injured list.
Sep 24, 2024Status changeCincinnati Reds placed LHP Brandon Williamson on the 60-day injured list.
Sep 24, 2024Status changeCincinnati Reds transferred LHP Brandon Williamson from the 15-day injured list to the 60-day injured list. Left elbow strain.
Sep 18, 2024Status changeCincinnati Reds placed LHP Brandon Williamson on the 15-day injured list. Left elbow strain.
Sep 1, 2024Status changeCincinnati Reds activated LHP Brandon Williamson from the 60-day injured list.
May 8, 2024Status changeCincinnati Reds transferred LHP Brandon Williamson from the 15-day injured list to the 60-day injured list. Left shoulder injury.
Mar 27, 2024Status changeCincinnati Reds placed LHP Brandon Williamson on the 15-day injured list retroactive to March 25, 2024. Left shoulder strain.
Mar 4, 2024Status changeCincinnati Reds placed LHP Brandon Williamson on the 60-day injured list. Left UCL reconstruction.
Sep 12, 2023Status changeCincinnati Reds activated LHP Brandon Williamson from the 7-day injured list.
Sep 1, 2023Status changeCincinnati Reds placed LHP Brandon Williamson on the 7-day injured list.
May 16, 2023RecalledCincinnati Reds recalled LHP Brandon Williamson from Louisville Bats.
Mar 24, 2023OptionedCincinnati Reds optioned LHP Brandon Williamson to Louisville Bats.
Nov 15, 2022Contract selectedCincinnati Reds selected the contract of LHP Brandon Williamson from Louisville Bats.
Mar 14, 2022TradedCincinnati Reds traded LF Jesse Winker and 3B Eugenio Suarez to Seattle Mariners for RHP Justin Dunn, CF Jake Fraley, LHP Brandon Williamson and Player To Be Named Later.

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.