Caleb Thielbar

RP · R/L · age 39.6 · CHC

XIX-AOCTOBER OK

Roster status
ACTIVE
Service thru 2025
7+131
Service now / projected
8+131 / 8+131
Option years left (2026)
1
Assignments left this season
5 of 5
Contract (2027)
2027 MUTUAL OPTION
Acquired
Free Agent (MIN) Dec'24
Outrighted / DFA'd before
1 / 2
Contract
1 yr, $4.5M (2026), 2027 mutual option

Next 90 days, by the model

Stays put
91%
Designated
5%
Optioned
<1%
Traded
3%
Released or non-tendered
<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 RPProj. WAR
1. Edward Cabrera0.9
2. Daniel Palencia0.9
3. Hunter Harvey0.8
4. Colin Rea0.8
5. Phil Maton0.7
6. Shelby Miller0.6
7. Jacob Webb0.6
8. Riley Martin0.5
9. Caleb Thielbarlast job0.5
10. Tyler Ferguson0.3
11. Javier Assad0.3
12. Jayden Murray0.1
By ZiPS / Steamer: returning RPProj. WAR
1. Edward Cabrera1.7
2. Hunter Harvey0.8
3. Colin Rea0.8
4. Daniel Palencia0.5
5. Caleb Thielbar0.5
6. Javier Assad0.5
7. Phil Maton0.2
8. Porter Hodge0.2
9. Shelby Millerlast job0.2
10. Tyler Ferguson0.1
11. Ethan Roberts0.1
12. Jacob Webb0.0

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

Option years, season by season

SeasonDays on optionOption year usedStints
2015124yesApr 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)
201350yesMar 14, 2013 to May 20, 2013 (50d, spring training)

Transaction log

May 19, 2026Status changeChicago Cubs activated LHP Caleb Thielbar from the 15-day injured list.
Apr 24, 2026Status changeChicago Cubs placed LHP Caleb Thielbar on the 15-day injured list. Left hamstring strain.
Dec 17, 2025Signed as free agentChicago Cubs signed free agent LHP Caleb Thielbar.
Nov 2, 2025Declared free agentLHP Caleb Thielbar elected free agency.
May 12, 2025Status changeChicago Cubs activated LHP Caleb Thielbar from the paternity list.
May 9, 2025Status changeChicago Cubs placed LHP Caleb Thielbar on the paternity list.
Dec 31, 2024Signed as free agentChicago Cubs signed free agent LHP Caleb Thielbar.
Oct 31, 2024Declared free agentLHP Caleb Thielbar elected free agency.
Apr 14, 2024Status changeMinnesota Twins activated LHP Caleb Thielbar from the 15-day injured list.
Mar 28, 2024Status changeMinnesota Twins placed LHP Caleb Thielbar on the 15-day injured list retroactive to March 25, 2024. Left hamstring strain.
Jul 30, 2023Status changeMinnesota Twins activated LHP Caleb Thielbar from the 15-day injured list.
Jun 9, 2023Status changeMinnesota Twins placed LHP Caleb Thielbar on the 15-day injured list retroactive to June 6, 2023. Right oblique strain.
Jun 4, 2023Status changeMinnesota Twins activated LHP Caleb Thielbar from the 15-day injured list.
May 5, 2023Status changeMinnesota Twins placed LHP Caleb Thielbar on the 15-day injured list retroactive to May 3, 2023. Right oblique strain.
Aug 5, 2022Status changeMinnesota Twins activated LHP Caleb Thielbar from the 15-day injured list.
Aug 3, 2022Status changeMinnesota Twins activated LHP Caleb Thielbar from the 15-day injured list.
Jul 23, 2022Status changeMinnesota Twins placed LHP Caleb Thielbar on the 15-day injured list retroactive to July 19, 2022. Left hamstring strain.
Jun 6, 2022Status changeMinnesota Twins activated LHP Caleb Thielbar from the restricted list.
Jun 3, 2022Status changeMinnesota Twins placed LHP Caleb Thielbar on the restricted list.
Jun 16, 2021Status changeMinnesota Twins activated LHP Caleb Thielbar from the 10-day injured list.
Jun 3, 2021Status changeMinnesota Twins placed LHP Caleb Thielbar on the 10-day injured list. Left groin strain.
Apr 24, 2021Status changeMinnesota Twins activated LHP Caleb Thielbar from the 10-day injured list.
Apr 20, 2021Status changeMinnesota Twins placed LHP Caleb Thielbar on the 10-day injured list.
Aug 3, 2020Contract selectedMinnesota Twins selected the contract of LHP Caleb Thielbar from Twins Alternate Training Site.
Dec 19, 2019Signed as free agentMinnesota Twins signed free agent LHP Caleb Thielbar to a minor league contract and invited him to spring training.
Aug 31, 2019TradedDetroit Tigers traded LHP Caleb Thielbar to Atlanta Braves.
Jan 24, 2018Signed as free agentDetroit Tigers signed free agent LHP Caleb Thielbar to a minor league contract.
Nov 11, 2016Signed as free agentMiami Marlins signed free agent LHP Caleb Thielbar to a minor league contract and invited him to spring training.
Sep 3, 2015OutrightedSan Diego Padres sent Caleb Thielbar outright to El Paso Chihuahuas.
Aug 30, 2015Designated for assignmentSan Diego Padres designated LHP Caleb Thielbar for assignment.
Aug 8, 2015OptionedSan Diego Padres optioned LHP Caleb Thielbar to El Paso Chihuahuas.
Aug 8, 2015Claimed off waiversSan Diego Padres claimed LHP Caleb Thielbar off waivers from Minnesota Twins.
Jul 31, 2015Designated for assignmentMinnesota Twins designated LHP Caleb Thielbar for assignment.
May 2, 2015OptionedMinnesota Twins optioned LHP Caleb Thielbar to Rochester Red Wings.
Apr 17, 2015RecalledMinnesota Twins recalled Caleb Thielbar from Rochester Red Wings.
Apr 1, 2015OptionedMinnesota Twins optioned LHP Caleb Thielbar to Rochester Red Wings.
Jul 11, 2013Status changeMinnesota Twins placed LHP Caleb Thielbar on the bereavement list.
May 20, 2013RecalledMinnesota Twins recalled LHP Caleb Thielbar from Rochester Red Wings.
Mar 14, 2013OptionedMinnesota Twins optioned Caleb Thielbar to Rochester Red Wings.
Nov 20, 2012Contract selectedMinnesota 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.