Steven Matz

RP · R/L · age 35.3 · TB

XIX-AOCTOBER OK

Roster status
ACTIVE
Service thru 2025
10+099
Service now / projected
11+099 / 11+099
Option years left (2026)
1
Assignments left this season
5 of 5
Contract (2027)
SIGNED THRU 2027
Acquired
Free Agent (BOS) Dec'25
Outrighted / DFA'd before
0 / 0
Contract
2 yr, $15M (2026-27)

Next 90 days, by the model

Stays put
91%
Designated
6%
Optioned
<1%
Traded
2%
Released or non-tendered
<1%

Pushing the cut risk around: this season's WAR (-0.04) raises it, age (35.30) raises it, this season's innings (75) lowers it.

Context the model does not weigh: ZiPS projects 1.0 WAR, -0.0 WAR this season; 14 RP on the 40-man.

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?

TB returns 14 RP on the 40-man once nobody leaves; about 9 RP jobs survive a normal winter. By his own recent record he ranks 8th among the returners (0.6 WAR against a bar of 0.4), which the calibrated model turns into 91% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 1st (1.5 WAR, bar 0.3), worth 93% kept on the same model.

By recent record: returning RPProj. WAR
1. Tyler Wells1.7
2. Bryan Baker1.5
3. Edwin Uceta1.5
4. Cole Sulser0.9
5. Manuel Rodriguez0.9
6. Kevin Kelly0.8
7. Garrett Cleavinger0.7
8. Steven Matz0.6
9. Cam Booserlast job0.4
10. Casey Legumina0.3
11. Ty Johnson0.1
12. Alex Cook-0.2
By ZiPS / Steamer: returning RPProj. WAR
1. Steven Matz1.5
2. Garrett Cleavinger0.8
3. Ty Johnson0.7
4. Tyler Wells0.6
5. Edwin Uceta0.6
6. Bryan Baker0.6
7. Brody Hopkins0.3
8. Kevin Kelly0.3
9. Manuel Rodriguezlast job0.3
10. Cole Sulser0.2
11. Cam Booser0.1
12. Casey Legumina0.1

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 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 (2 yr, $15M (2026-27)). 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. 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 (2 yr, $15M (2026-27)): 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, season by season

SeasonDays on optionOption year usedStints
201584yesMar 22, 2015 to Jun 28, 2015 (84d, spring training)
2014191yesMar 10, 2014 to Sep 29, 2014 (191d, spring training)

Transaction log

Jul 25, 2026Status changeTampa Bay Rays activated LHP Steven Matz from the 15-day injured list.
Jun 25, 2026Status changeTampa Bay Rays placed LHP Steven Matz on the 15-day injured list retroactive to June 24, 2026. Left ankle sprain.
May 20, 2026Status changeTampa Bay Rays activated LHP Steven Matz from the 15-day injured list.
May 5, 2026Status changeTampa Bay Rays placed LHP Steven Matz on the 15-day injured list retroactive to May 4, 2026. Left elbow inflammation.
Dec 16, 2025Signed as free agentTampa Bay Rays signed free agent LHP Steven Matz.
Nov 2, 2025Declared free agentLHP Steven Matz elected free agency.
Aug 1, 2025Status changeBoston Red Sox activated LHP Steven Matz.
Jul 31, 2025TradedSt. Louis Cardinals traded LHP Steven Matz to Boston Red Sox for 1B Blaze Jordan.
Sep 1, 2024Status changeSt. Louis Cardinals activated LHP Steven Matz from the 60-day injured list.
Jun 28, 2024Status changeSt. Louis Cardinals placed LHP Steven Matz on the 60-day injured list. Lower back strain.
May 3, 2024Status changeSt. Louis Cardinals placed LHP Steven Matz on the 15-day injured list retroactive to May 1, 2024. Lower back strain.
May 1, 2024Status changeSt. Louis Cardinals placed LHP Steven Matz on the 15-day injured list. Lower back strain.
Oct 2, 2023Status changeSt. Louis Cardinals activated LHP Steven Matz from the 15-day injured list.
Aug 14, 2023Status changeSt. Louis Cardinals placed LHP Steven Matz on the 15-day injured list retroactive to August 13, 2023.
Sep 17, 2022Status changeSt. Louis Cardinals activated LHP Steven Matz from the 15-day injured list.
Jul 17, 2022Status changeSt. Louis Cardinals activated LHP Steven Matz.
May 23, 2022Status changeSt. Louis Cardinals placed LHP Steven Matz on the 15-day injured list. Left shoulder impingement.
May 6, 2022Status changeSt. Louis Cardinals activated LHP Steven Matz from the bereavement list.
May 3, 2022Status changeSt. Louis Cardinals placed LHP Steven Matz on the bereavement list.
Nov 29, 2021Status changeSt. Louis Cardinals activated LHP Steven Matz.
Nov 29, 2021Signed as free agentSt. Louis Cardinals signed free agent LHP Steven Matz.
Nov 3, 2021Declared free agentLHP Steven Matz elected free agency.
Jun 30, 2021Status changeToronto Blue Jays activated LHP Steven Matz from the 10-day injured list.
Jun 13, 2021Status changeToronto Blue Jays placed LHP Steven Matz on the 10-day injured list.
Jan 27, 2021TradedNew York Mets traded LHP Steven Matz to Toronto Blue Jays for RHP Josh Winckowski, RHP Sean Reid-Foley and RHP Yennsy Diaz.
Sep 13, 2020Status changeNew York Mets activated LHP Steven Matz from the 10-day injured list.
Aug 30, 2020Status changeNew York Mets placed LHP Steven Matz on the 10-day injured list. Left shoulder discomfort.
May 18, 2019Status changeNew York Mets activated LHP Steven Matz from the 10-day injured list.
May 9, 2019Status changeNew York Mets placed LHP Steven Matz on the 10-day injured list retroactive to May 5, 2019. Radial nerve discomfort.
Aug 16, 2018Status changeNew York Mets activated LHP Steven Matz.
Aug 3, 2018Status changeNew York Mets placed LHP Steven Matz on the 10-day disabled list retroactive to August 1, 2018. Flexor pronator strain in left arm.
Nov 3, 2017Status changeNew York Mets activated LHP Steven Matz from the 60-day disabled list.
Sep 8, 2017Status changeNew York Mets transferred LHP Steven Matz from the 10-day disabled list to the 60-day disabled list. Irritation of ulnar nerve in left elbow
Aug 22, 2017Status changeNew York Mets placed LHP Steven Matz on the 10-day disabled list retroactive to August 19, 2017. Irritation of ulnar nerve in left elbow
Jun 10, 2017Status changeNew York Mets activated LHP Steven Matz from the 10-day disabled list.
Apr 2, 2017Status changeNew York Mets placed LHP Steven Matz on the 10-day disabled list retroactive to March 30, 2017. Left elbow inflammation.
Oct 6, 2016Status changeNew York Mets activated LHP Steven Matz.
Oct 3, 2016Status changeNew York Mets activated LHP Steven Matz from the 15-day disabled list.
Aug 22, 2016Status changeNew York Mets placed LHP Steven Matz on the 15-day disabled list retroactive to August 15, 2016. Left shoulder tightness.
Sep 1, 2015Status changeNew York Mets activated LHP Steven Matz from the 15-day disabled list.

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.