Tanner Houck

SP · R/R · age 30.2 · BOS

XIX-AXX-D60-DAY ILOCTOBER: REINSTATE

Roster status
60-DAY IL (Tommy John surgery)
Service thru 2025
4+100
Service now / projected
5+100 / 5+100
Option years left (2026)
2
Assignments left this season
5 of 5
Contract (2027)
SALARY ARBITRATION ELIGIBLE
Acquired
Drafted 1st Rd (24) '17
Outrighted / DFA'd before
0 / 0
Contract
1 yr, $4.15M (2026)

Next 90 days, by the model

Stays put
94%
Designated
2%
Optioned
1%
Traded
2%
Released or non-tendered
1%

Pushing the cut risk around: WAR two seasons ago (3.86) lowers it, last season's WAR (-0.36) raises it, share of appearances as a starter (1) lowers it.

Context the model does not weigh: ZiPS projects 1.4 WAR; 10 SP on the 40-man, of whom Patrick Sandoval 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?

BOS returns 9 SP on the 40-man once 1 free agent leaves; about 8 SP jobs survive a normal winter. By his own recent record he ranks 6th among the returners (1.1 WAR against a bar of 0.2), which the calibrated model turns into 73% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 7th (0.7 WAR, bar 0.3), worth 63% kept on the same model.

By recent record: returning SPProj. WAR
1. Ranger Suarez3.2
2. Garrett Crochet3.1
3. Payton Tolle2.8
4. Sonny Gray2.6
5. Jake Bennett2.0
6. Tanner Houck1.1
7. Kutter Crawford0.8
8. Eduardo Riveralast job0.2
9. Johan Oviedo0.1
By ZiPS / Steamer: returning SPProj. WAR
1. Garrett Crochet5.4
2. Sonny Gray3.4
3. Ranger Suarez3.2
4. Johan Oviedo1.2
5. Payton Tolle1.0
6. Kutter Crawford0.8
7. Tanner Houck0.7
8. Jake Bennettlast job0.3
9. Eduardo Rivera0.3

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: Eligible once reinstated

On the 60-day IL before the cutoff, so he is on the eligibility list. He has served the 60 days (216), so the only step is reinstatement: the club must open a 40-man spot (the 40-man is full, so someone must be traded, outrighted, released or moved to the 60-day IL) and a 26-man spot before the series roster is submitted.

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, $4.15M (2026)). 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. Because he is on the injured list he cannot be outrighted until he is healthy and reinstated, so a DFA now would have to end in a trade or a release. 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
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
2021129yesMar 17, 2021 to Apr 7, 2021 (6d, spring training)Apr 7, 2021 to Apr 19, 2021 (12d)Apr 19, 2021 to Jul 16, 2021 (88d)Jul 29, 2021 to Aug 7, 2021 (9d)Aug 8, 2021 to Aug 12, 2021 (4d)Aug 13, 2021 to Aug 17, 2021 (4d)Aug 18, 2021 to Aug 24, 2021 (6d)

Transaction log

Feb 10, 2026Status changeBoston Red Sox placed RHP Tanner Houck on the 60-day injured list.
Nov 6, 2025Status changeBoston Red Sox activated RHP Tanner Houck from the 60-day injured list.
Jul 31, 2025Status changeBoston Red Sox placed RHP Tanner Houck on the 60-day injured list. Right flexor pronator strain.
May 14, 2025Status changeBoston Red Sox placed RHP Tanner Houck on the 15-day injured list retroactive to May 13, 2025. Right flexor pronator strain.
Aug 22, 2023Status changeBoston Red Sox activated RHP Tanner Houck from the 15-day injured list.
Jun 18, 2023Status changeBoston Red Sox placed RHP Tanner Houck on the 15-day injured list retroactive to June 17, 2023. Facial fracture.
Nov 10, 2022Status changeBoston Red Sox activated RHP Tanner Houck from the 60-day injured list.
Sep 4, 2022Status changeBoston Red Sox transferred RHP Tanner Houck from the 15-day injured list to the 60-day injured list. Lower back inflammation.
Aug 9, 2022Status changeBoston Red Sox placed RHP Tanner Houck on the 15-day injured list retroactive to August 6, 2022. Lower back inflammation.
Jun 30, 2022Status changeBoston Red Sox activated RHP Tanner Houck from the restricted list.
Jun 27, 2022Status changeBoston Red Sox placed RHP Tanner Houck on the restricted list.
Apr 29, 2022Status changeBoston Red Sox activated RHP Tanner Houck from the restricted list.
Apr 25, 2022Status changeBoston Red Sox placed RHP Tanner Houck on the restricted list.
Aug 24, 2021RecalledBoston Red Sox recalled RHP Tanner Houck, and from Worcester Red Sox.
Aug 18, 2021OptionedBoston Red Sox optioned RHP Tanner Houck to Worcester Red Sox.
Aug 17, 2021RecalledBoston Red Sox recalled RHP Tanner Houck from Worcester Red Sox.
Aug 13, 2021OptionedBoston Red Sox optioned RHP Tanner Houck to Worcester Red Sox.
Aug 12, 2021RecalledBoston Red Sox recalled RHP Tanner Houck from Worcester Red Sox.
Aug 8, 2021OptionedBoston Red Sox optioned RHP Tanner Houck to Worcester Red Sox.
Aug 7, 2021RecalledBoston Red Sox recalled RHP Tanner Houck from Worcester Red Sox.
Jul 29, 2021OptionedBoston Red Sox optioned RHP Tanner Houck to Worcester Red Sox.
Jul 16, 2021RecalledBoston Red Sox recalled RHP Tanner Houck from Worcester Red Sox.
Apr 19, 2021OptionedBoston Red Sox optioned RHP Tanner Houck to Red Sox Alternate Training Site.
Apr 7, 2021OptionedBoston Red Sox optioned P Tanner Houck to Red Sox Alternate Training Site.
Mar 17, 2021OptionedBoston Red Sox optioned P Tanner Houck to Red Sox Alternate Training Site.
Sep 15, 2020Contract selectedBoston Red Sox selected the contract of RHP Tanner Houck from Red Sox Alternate Training Site.
Jun 21, 2017SignedBoston Red Sox signed RHP Tanner Houck.

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.