Caleb Thielbar
RP · R/L · age 39.6 · CHCXIX-AOCTOBER OK
ACTIVE
7+131
8+131 / 8+131
1
5 of 5
2027 MUTUAL OPTION
Free Agent (MIN) Dec'24
1 / 2
1 yr, $4.5M (2026), 2027 mutual option
Next 90 days, by the model
91%
5%
<1%
3%
<1%
Pushing the cut risk around: this season's WAR (-0.31) raises it, age (39.62) raises it, prior DFAs (2) raises it.
Context the model does not weigh: ZiPS projects 0.5 WAR, -0.3 WAR this season; 20 RP on the 40-man, of whom Aaron Civale, Trent Thornton are 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?
CHC returns 18 RP on the 40-man once 2 free agents leave; about 9 RP jobs survive a normal winter. By his own recent record he ranks 9th among the returners (0.5 WAR against a bar of 0.5), which the calibrated model turns into 90% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 5th (0.5 WAR, bar 0.2), worth 90% kept on the same model.
| By recent record: returning RP | Proj. WAR |
|---|---|
| 1. Edward Cabrera | 0.9 |
| 2. Daniel Palencia | 0.9 |
| 3. Hunter Harvey | 0.8 |
| 4. Colin Rea | 0.8 |
| 5. Phil Maton | 0.7 |
| 6. Shelby Miller | 0.6 |
| 7. Jacob Webb | 0.6 |
| 8. Riley Martin | 0.5 |
| 9. Caleb Thielbarlast job | 0.5 |
| 10. Tyler Ferguson | 0.3 |
| 11. Javier Assad | 0.3 |
| 12. Jayden Murray | 0.1 |
| By ZiPS / Steamer: returning RP | Proj. WAR |
|---|---|
| 1. Edward Cabrera | 1.7 |
| 2. Hunter Harvey | 0.8 |
| 3. Colin Rea | 0.8 |
| 4. Daniel Palencia | 0.5 |
| 5. Caleb Thielbar | 0.5 |
| 6. Javier Assad | 0.5 |
| 7. Phil Maton | 0.2 |
| 8. Porter Hodge | 0.2 |
| 9. Shelby Millerlast job | 0.2 |
| 10. Tyler Ferguson | 0.1 |
| 11. Ethan Roberts | 0.1 |
| 12. Jacob Webb | 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 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 (1 yr, $4.5M (2026), 2027 mutual option). 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 Mutual 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 assignment7+131 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 2027.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 2012 otherwise).
Option years, season by season
| Season | Days on option | Option year used | Stints |
|---|---|---|---|
| 2015 | 124 | yes | Apr 1, 2015 to Apr 17, 2015 (12d, spring training)May 2, 2015 to Jul 31, 2015 (90d)Aug 8, 2015 to Aug 30, 2015 (22d) |
| 2013 | 50 | yes | Mar 14, 2013 to May 20, 2013 (50d, spring training) |
Transaction log
| May 19, 2026 | Status change | Chicago Cubs activated LHP Caleb Thielbar from the 15-day injured list. |
| Apr 24, 2026 | Status change | Chicago Cubs placed LHP Caleb Thielbar on the 15-day injured list. Left hamstring strain. |
| Dec 17, 2025 | Signed as free agent | Chicago Cubs signed free agent LHP Caleb Thielbar. |
| Nov 2, 2025 | Declared free agent | LHP Caleb Thielbar elected free agency. |
| May 12, 2025 | Status change | Chicago Cubs activated LHP Caleb Thielbar from the paternity list. |
| May 9, 2025 | Status change | Chicago Cubs placed LHP Caleb Thielbar on the paternity list. |
| Dec 31, 2024 | Signed as free agent | Chicago Cubs signed free agent LHP Caleb Thielbar. |
| Oct 31, 2024 | Declared free agent | LHP Caleb Thielbar elected free agency. |
| Apr 14, 2024 | Status change | Minnesota Twins activated LHP Caleb Thielbar from the 15-day injured list. |
| Mar 28, 2024 | Status change | Minnesota Twins placed LHP Caleb Thielbar on the 15-day injured list retroactive to March 25, 2024. Left hamstring strain. |
| Jul 30, 2023 | Status change | Minnesota Twins activated LHP Caleb Thielbar from the 15-day injured list. |
| Jun 9, 2023 | Status change | Minnesota Twins placed LHP Caleb Thielbar on the 15-day injured list retroactive to June 6, 2023. Right oblique strain. |
| Jun 4, 2023 | Status change | Minnesota Twins activated LHP Caleb Thielbar from the 15-day injured list. |
| May 5, 2023 | Status change | Minnesota Twins placed LHP Caleb Thielbar on the 15-day injured list retroactive to May 3, 2023. Right oblique strain. |
| Aug 5, 2022 | Status change | Minnesota Twins activated LHP Caleb Thielbar from the 15-day injured list. |
| Aug 3, 2022 | Status change | Minnesota Twins activated LHP Caleb Thielbar from the 15-day injured list. |
| Jul 23, 2022 | Status change | Minnesota Twins placed LHP Caleb Thielbar on the 15-day injured list retroactive to July 19, 2022. Left hamstring strain. |
| Jun 6, 2022 | Status change | Minnesota Twins activated LHP Caleb Thielbar from the restricted list. |
| Jun 3, 2022 | Status change | Minnesota Twins placed LHP Caleb Thielbar on the restricted list. |
| Jun 16, 2021 | Status change | Minnesota Twins activated LHP Caleb Thielbar from the 10-day injured list. |
| Jun 3, 2021 | Status change | Minnesota Twins placed LHP Caleb Thielbar on the 10-day injured list. Left groin strain. |
| Apr 24, 2021 | Status change | Minnesota Twins activated LHP Caleb Thielbar from the 10-day injured list. |
| Apr 20, 2021 | Status change | Minnesota Twins placed LHP Caleb Thielbar on the 10-day injured list. |
| Aug 3, 2020 | Contract selected | Minnesota Twins selected the contract of LHP Caleb Thielbar from Twins Alternate Training Site. |
| Dec 19, 2019 | Signed as free agent | Minnesota Twins signed free agent LHP Caleb Thielbar to a minor league contract and invited him to spring training. |
| Aug 31, 2019 | Traded | Detroit Tigers traded LHP Caleb Thielbar to Atlanta Braves. |
| Jan 24, 2018 | Signed as free agent | Detroit Tigers signed free agent LHP Caleb Thielbar to a minor league contract. |
| Nov 11, 2016 | Signed as free agent | Miami Marlins signed free agent LHP Caleb Thielbar to a minor league contract and invited him to spring training. |
| Sep 3, 2015 | Outrighted | San Diego Padres sent Caleb Thielbar outright to El Paso Chihuahuas. |
| Aug 30, 2015 | Designated for assignment | San Diego Padres designated LHP Caleb Thielbar for assignment. |
| Aug 8, 2015 | Optioned | San Diego Padres optioned LHP Caleb Thielbar to El Paso Chihuahuas. |
| Aug 8, 2015 | Claimed off waivers | San Diego Padres claimed LHP Caleb Thielbar off waivers from Minnesota Twins. |
| Jul 31, 2015 | Designated for assignment | Minnesota Twins designated LHP Caleb Thielbar for assignment. |
| May 2, 2015 | Optioned | Minnesota Twins optioned LHP Caleb Thielbar to Rochester Red Wings. |
| Apr 17, 2015 | Recalled | Minnesota Twins recalled Caleb Thielbar from Rochester Red Wings. |
| Apr 1, 2015 | Optioned | Minnesota Twins optioned LHP Caleb Thielbar to Rochester Red Wings. |
| Jul 11, 2013 | Status change | Minnesota Twins placed LHP Caleb Thielbar on the bereavement list. |
| May 20, 2013 | Recalled | Minnesota Twins recalled LHP Caleb Thielbar from Rochester Red Wings. |
| Mar 14, 2013 | Optioned | Minnesota Twins optioned Caleb Thielbar to Rochester Red Wings. |
| Nov 20, 2012 | Contract selected | Minnesota Twins selected the contract of Caleb Thielbar from Rochester Red Wings. |
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.