Aaron Ashby
RP · R/L · age 28.3 · MILXX-DOCTOBER OK
ACTIVE
3+088
4+088 / 4+088
1
5 of 5
SIGNED THRU 2027 + 2028 CLUB OPTION / 2029 CLUB OPTION
Drafted 4th Rd '18
0 / 0
5 yr, $20.5M (2023-27), 2028-29 club options
Next 90 days, by the model
98%
<1%
<1%
2%
<1%
Pushing the cut risk around: this season's WAR (1.46) lowers it, this season's innings (81.10) lowers it, this season's strikeout rate (0.31) lowers it.
Context the model does not weigh: ZiPS projects 0.8 WAR, 1.5 WAR this season; 15 RP on the 40-man, of whom JoJo Romero 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?
MIL returns 14 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 3rd among the returners (2.0 WAR against a bar of 0.5), which the calibrated model turns into 99% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 6th (0.7 WAR, bar 0.3), worth 97% kept on the same model.
| By recent record: returning RP | Proj. WAR |
|---|---|
| 1. Trevor Megill | 3.5 |
| 2. Abner Uribe (mil) | 2.3 |
| 3. Aaron Ashby | 2.0 |
| 4. Chad Patrick | 1.7 |
| 5. Kyle Harrison | 1.4 |
| 6. Jared Koenig | 0.9 |
| 7. DL Hall | 0.6 |
| 8. Antonio Senzatela | 0.6 |
| 9. Garrett Stallingslast job | 0.5 |
| 10. Brian Fitzpatrick | 0.3 |
| 11. Angel Zerpa | 0.2 |
| 12. Rob Zastryzny | 0.1 |
| By ZiPS / Steamer: returning RP | Proj. WAR |
|---|---|
| 1. Chad Patrick | 1.5 |
| 2. Kyle Harrison | 1.1 |
| 3. Abner Uribe (mil) | 0.8 |
| 4. Trevor Megill | 0.7 |
| 5. Jared Koenig | 0.7 |
| 6. Aaron Ashby | 0.7 |
| 7. Angel Zerpa | 0.6 |
| 8. DL Hall | 0.4 |
| 9. Garrett Stallingslast job | 0.3 |
| 10. Rob Zastryzny | 0.2 |
| 11. Antonio Senzatela | 0.2 |
| 12. Bryse Wilson | 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, 1 option year 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 (5 yr, $20.5M (2023-27), 2028-29 club options). 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 (5 yr, $20.5M (2023-27), 2028-29 club options): 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 rule1 option year left entering 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 0 times this season that count toward the cap of 5: 5 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+088 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 |
|---|---|---|---|
| 2024 | 151 | yes | Mar 22, 2024 to Apr 6, 2024 (15d)Apr 9, 2024 to Jun 5, 2024 (57d)Jun 7, 2024 to Aug 25, 2024 (79d) |
| 2021 | 50 | yes | Jul 1, 2021 to Aug 10, 2021 (40d)Aug 11, 2021 to Aug 14, 2021 (3d)Aug 15, 2021 to Aug 22, 2021 (7d) |
Transaction log
| Jul 14, 2025 | Status change | Milwaukee Brewers activated LHP Aaron Ashby from the paternity list. |
| Jul 11, 2025 | Status change | Milwaukee Brewers placed LHP Aaron Ashby on the paternity list. |
| May 23, 2025 | Status change | Milwaukee Brewers activated LHP Aaron Ashby from the 15-day injured list. |
| Mar 27, 2025 | Status change | Milwaukee Brewers placed LHP Aaron Ashby on the 15-day injured list retroactive to March 24, 2025. Right oblique. |
| Aug 25, 2024 | Status change | Milwaukee Brewers placed LHP Aaron Ashby on the 15-day injured list. Right oblique. |
| Aug 25, 2024 | Recalled | Milwaukee Brewers recalled LHP Aaron Ashby from Nashville Sounds. |
| Aug 25, 2024 | Status change | Milwaukee Brewers activated LHP Aaron Ashby. |
| Jun 7, 2024 | Optioned | Milwaukee Brewers optioned LHP Aaron Ashby to Nashville Sounds. |
| Jun 5, 2024 | Recalled | Milwaukee Brewers recalled LHP Aaron Ashby from Nashville Sounds. |
| Apr 9, 2024 | Optioned | Milwaukee Brewers optioned LHP Aaron Ashby to Nashville Sounds. |
| Apr 6, 2024 | Recalled | Milwaukee Brewers recalled LHP Aaron Ashby from Nashville Sounds. |
| Mar 22, 2024 | Optioned | Milwaukee Brewers optioned LHP Aaron Ashby to Nashville Sounds. |
| Nov 6, 2023 | Status change | Milwaukee Brewers activated LHP Aaron Ashby from the 60-day injured list. |
| Apr 9, 2023 | Status change | Milwaukee Brewers transferred LHP Aaron Ashby from the 15-day injured list to the 60-day injured list. Left shoulder inflammation. |
| Mar 29, 2023 | Status change | Milwaukee Brewers placed LHP Aaron Ashby on the 15-day injured list retroactive to March 27, 2023. Left shoulder inflammation. |
| Sep 20, 2022 | Status change | Milwaukee Brewers activated LHP Aaron Ashby from the 15-day injured list. |
| Aug 22, 2022 | Status change | Milwaukee Brewers placed LHP Aaron Ashby on the 15-day injured list retroactive to August 20, 2022. Left shoulder inflammation. |
| Jul 2, 2022 | Status change | Milwaukee Brewers activated LHP Aaron Ashby from the 15-day injured list. |
| Jun 20, 2022 | Status change | Milwaukee Brewers placed LHP Aaron Ashby on the 15-day injured list retroactive to June 17, 2022. Left forearm inflammation. |
| Aug 22, 2021 | Recalled | Milwaukee Brewers recalled LHP Aaron Ashby, and from Nashville Sounds. |
| Aug 15, 2021 | Optioned | Milwaukee Brewers optioned LHP Aaron Ashby to Nashville Sounds. |
| Aug 14, 2021 | Recalled | Milwaukee Brewers recalled LHP Aaron Ashby from Nashville Sounds. |
| Aug 11, 2021 | Optioned | Milwaukee Brewers optioned LHP Aaron Ashby to Nashville Sounds. |
| Aug 10, 2021 | Recalled | Milwaukee Brewers recalled LHP Aaron Ashby from Nashville Sounds. |
| Jul 1, 2021 | Optioned | Milwaukee Brewers optioned LHP Aaron Ashby to Nashville Sounds. |
| Jun 30, 2021 | Contract selected | Milwaukee Brewers selected the contract of LHP Aaron Ashby from Nashville Sounds. |
| Jun 15, 2018 | Signed | Milwaukee Brewers signed LHP Aaron Ashby. |
Service through 2025 per FanGraphs RosterResource; options and this-season service reconstructed from the MLB transaction log (reconstruction; FanGraphs shows 1). Rule 5 exposure deadline Nov 17, 2026.