Connor Thomas
RP · L/L · age 28.3 · KCXX-DOCTOBER OK
ACTIVE
1+000
1+038 / 1+051
2 (using one in 2026)
1 of 5
PRE-ARBITRATION / AUTO-RENEWAL
Waivers (ATH) Aug'26
2 / 2
none listed
Next 90 days, by the model
28%
37%
32%
1%
3%
Pushing the cut risk up: this season's WAR (-0.11) raises it, last season's WAR (-0.24) raises it, time with the club (41) raises it.
Context the model does not weigh: ZiPS projects 0.8 WAR, -0.1 WAR this season; 18 RP on the 40-man, of whom Craig Kimbrel 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?
KC returns 17 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 17th among the returners (-0.6 WAR against a bar of 0.1), which the calibrated model turns into 37% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 2nd (0.4 WAR, bar 0.2), worth 55% kept on the same model.
| By recent record: returning RP | Proj. WAR |
|---|---|
| 1. Carlos Estevez | 1.2 |
| 2. Nick Mears | 0.6 |
| 3. Nate Pearson | 0.6 |
| 4. Lucas Erceg | 0.6 |
| 5. Jose Cuas | 0.4 |
| 6. Anthony Gose | 0.3 |
| 7. Nolan Hoffman | 0.3 |
| 8. Spencer Bivens | 0.2 |
| 9. James McArthurlast job | 0.1 |
| 10. Connor Seabold | 0.1 |
| 11. Steven Cruz | -0.1 |
| 12. Luke Little | -0.2 |
| By ZiPS / Steamer: returning RP | Proj. WAR |
|---|---|
| 1. Lucas Erceg | 0.5 |
| 2. Connor Thomas | 0.4 |
| 3. Easton McGee | 0.3 |
| 4. Nick Mears | 0.3 |
| 5. Luke Little | 0.3 |
| 6. James McArthur | 0.3 |
| 7. Alex Lange | 0.2 |
| 8. Steven Cruz | 0.2 |
| 9. Carlos Estevezlast job | 0.2 |
| 10. Connor Seabold | 0.1 |
| 11. Nate Pearson | 0.1 |
| 12. Anthony Gose | -0.0 |
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. 1 of the five optional assignments for 2026 remain. A 2026 option year is already used (32 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. He was outrighted before (2x) 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
- 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
- Option years and the 20-day rule2 option years left entering 2026; 32 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 4 times this season that count toward the cap of 5: 1 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 walkOutrighted before (Oct 2025): a second outright lets him elect free agency, so he cannot be stashed in the minors against his will.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 2022 otherwise).
Option years, season by season
| Season | Days on option | Option year used | Stints |
|---|---|---|---|
| 2026 | 32 | yes | Jul 8, 2026 to Jul 25, 2026 (17d)Jul 29, 2026 to Jul 30, 2026 (1d)Jul 31, 2026 to Aug 1, 2026 (1d)Aug 4, 2026 to Aug 17, 2026 (13d) |
| 2023 | 186 | yes | Mar 16, 2023 to Oct 2, 2023 (186d, spring training) |
Transaction log
| Aug 17, 2026 | Recalled | Kansas City Royals recalled LHP Connor Thomas from Omaha Storm Chasers. |
| Aug 4, 2026 | Optioned | Kansas City Royals optioned LHP Connor Thomas to Omaha Storm Chasers. |
| Aug 4, 2026 | Claimed off waivers | Kansas City Royals claimed LHP Connor Thomas off waivers from Athletics. |
| Aug 1, 2026 | Designated for assignment | Athletics designated LHP Connor Thomas for assignment. |
| Jul 31, 2026 | Optioned | Athletics optioned LHP Connor Thomas to Las Vegas Aviators. |
| Jul 30, 2026 | Claimed off waivers | Athletics claimed LHP Connor Thomas off waivers from Atlanta Braves. |
| Jul 29, 2026 | Optioned | Atlanta Braves optioned LHP Connor Thomas to Gwinnett Stripers. |
| Jul 25, 2026 | Recalled | Atlanta Braves recalled LHP Connor Thomas from Gwinnett Stripers. |
| Jul 8, 2026 | Optioned | Atlanta Braves optioned LHP Connor Thomas to Gwinnett Stripers. |
| Jul 7, 2026 | Contract selected | Atlanta Braves selected the contract of LHP Connor Thomas from Gwinnett Stripers. |
| Nov 6, 2025 | Signed as free agent | Atlanta Braves signed free agent LHP Connor Thomas to a minor league contract. |
| Oct 23, 2025 | Status change | Milwaukee Brewers activated LHP Connor Thomas from the 60-day injured list. |
| Oct 23, 2025 | Outrighted | Milwaukee Brewers sent LHP Connor Thomas outright to Nashville Sounds. |
| May 18, 2025 | Status change | Milwaukee Brewers transferred LHP Connor Thomas from the 15-day injured list to the 60-day injured list. Left elbow arthritis. |
| Apr 8, 2025 | Status change | Milwaukee Brewers placed LHP Connor Thomas on the 15-day injured list retroactive to April 6, 2025. Left elbow arthritis. |
| Mar 27, 2025 | Status change | Milwaukee Brewers activated LHP Connor Thomas. |
| Dec 11, 2024 | Rule 5 pick | Milwaukee Brewers purchased contract of LHP Connor Thomas from St. Louis Cardinals in the Rule 5 Draft. |
| Nov 16, 2023 | Outrighted | St. Louis Cardinals sent LHP Connor Thomas outright to Memphis Redbirds. |
| Nov 14, 2023 | Designated for assignment | St. Louis Cardinals designated LHP Connor Thomas for assignment. |
| Oct 2, 2023 | Recalled | St. Louis Cardinals recalled LHP Connor Thomas from Memphis Redbirds. |
| Mar 16, 2023 | Optioned | St. Louis Cardinals optioned LHP Connor Thomas to Memphis Redbirds. |
| Nov 15, 2022 | Contract selected | St. Louis Cardinals selected the contract of LHP Connor Thomas from Memphis Redbirds. |
| Jun 21, 2019 | Signed | St. Louis Cardinals signed LHP Connor Thomas. |
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.