Janson Junk

SP · R/R · age 30.7 · MIA

OUT OF OPTIONSXX-DOCTOBER OK

Roster status
ACTIVE
Service thru 2025
1+045
Service now / projected
2+045 / 2+045
Option years left (2026)
0
Assignments left this season
n/a of 5
Contract (2027)
PRE-ARBITRATION / AUTO-RENEWAL
Acquired
Free Agent (OAK) Feb'25
Outrighted / DFA'd before
1 / 3
Contract
1 yr, $798k (2026)

Next 90 days, by the model

Stays put
95%
Designated
<1%
Optioned
1%
Traded
4%
Released or non-tendered
<1%

Pushing the cut risk around: this season's WAR (1.67) lowers it, last season's WAR (2.52) lowers it, age (30.66) raises it.

Context the model does not weigh: ZiPS projects 1.6 WAR, 1.7 WAR this season; 10 SP 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?

MIA returns 10 SP on the 40-man once nobody leaves; about 8 SP jobs survive a normal winter. By his own recent record he ranks 1st among the returners (2.0 WAR against a bar of -0.0), which the calibrated model turns into 100% kept through the tender deadline. Ranked by ZiPS and Steamer instead, which credit his longer track record, he is 5th (1.1 WAR, bar 0.4), worth 99% kept on the same model.

By recent record: returning SPProj. WAR
1. Janson Junk2.0
2. Eury Perez1.9
3. Max Meyer1.7
4. Sandy Alcantara1.7
5. Ryan Gusto1.1
6. Tyler Phillips0.3
7. Patrick Monteverde-0.0
8. Adam Mazurlast job-0.0
9. Robby Snelling-0.3
10. Bradley Blalock-1.0
By ZiPS / Steamer: returning SPProj. WAR
1. Sandy Alcantara2.5
2. Eury Perez2.2
3. Robby Snelling1.5
4. Max Meyer1.4
5. Janson Junk1.1
6. Ryan Gusto0.6
7. Adam Mazur0.6
8. Patrick Monteverdelast job0.4
9. Tyler Phillips0.3
10. Bradley Blalock-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
Out of options: the only route to the minors is outright waivers, where any club can claim him for $50,000.
Out of options
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, $798k (2026)). He was outrighted before (1x) 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, season by season

SeasonDays on optionOption year usedStints
2024137yesMar 19, 2024 to Apr 27, 2024 (38d, spring training)May 6, 2024 to May 10, 2024 (4d)May 13, 2024 to Jun 1, 2024 (19d)Jun 5, 2024 to Jul 3, 2024 (28d)Jul 5, 2024 to Jul 26, 2024 (21d)Aug 2, 2024 to Aug 29, 2024 (27d)
2023183yesMar 15, 2023 to Apr 11, 2023 (12d, spring training)Apr 13, 2023 to Oct 1, 2023 (171d)
2022165yesMar 30, 2022 to May 28, 2022 (51d, spring training)May 29, 2022 to Jun 20, 2022 (22d)Jun 26, 2022 to Jul 27, 2022 (31d)Aug 6, 2022 to Oct 6, 2022 (61d)
20214no (under 20)Sep 30, 2021 to Oct 5, 2021 (4d)

Transaction log

Jul 9, 2026Status changeMiami Marlins activated RHP Janson Junk from the 15-day injured list.
May 28, 2026Status changeMiami Marlins placed RHP Janson Junk on the 15-day injured list. Right shin bone inflammation.
Sep 8, 2025Status changeMiami Marlins activated RHP Janson Junk from the 15-day injured list.
Aug 27, 2025Status changeMiami Marlins placed RHP Janson Junk on the 15-day injured list retroactive to August 24, 2025. Right ulnar nerve irritation.
May 24, 2025Contract selectedMiami Marlins selected the contract of RHP Janson Junk from Jacksonville Jumbo Shrimp.
Feb 10, 2025Signed as free agentMiami Marlins signed free agent RHP Janson Junk to a minor league contract and invited him to spring training.
Sep 7, 2024OutrightedOakland Athletics sent RHP Janson Junk outright to Las Vegas Aviators.
Sep 5, 2024Designated for assignmentOakland Athletics designated RHP Janson Junk for assignment.
Sep 1, 2024Status changeOakland Athletics activated RHP Janson Junk.
Aug 31, 2024Claimed off waiversOakland Athletics claimed RHP Janson Junk off waivers from Houston Astros.
Aug 29, 2024Designated for assignmentHouston Astros designated RHP Janson Junk for assignment.
Aug 2, 2024OptionedHouston Astros optioned RHP Janson Junk to Sugar Land Space Cowboys.
Aug 2, 2024Claimed off waiversHouston Astros claimed RHP Janson Junk off waivers from Milwaukee Brewers.
Jul 28, 2024Designated for assignmentMilwaukee Brewers designated RHP Janson Junk for assignment.
Jul 26, 2024RecalledMilwaukee Brewers recalled RHP Janson Junk from Nashville Sounds.
Jul 5, 2024OptionedMilwaukee Brewers optioned RHP Janson Junk to Nashville Sounds.
Jul 3, 2024RecalledMilwaukee Brewers recalled RHP Janson Junk from Nashville Sounds.
Jun 5, 2024OptionedMilwaukee Brewers optioned RHP Janson Junk to Nashville Sounds.
Jun 1, 2024RecalledMilwaukee Brewers recalled RHP Janson Junk from Nashville Sounds.
May 13, 2024OptionedMilwaukee Brewers optioned RHP Janson Junk to Nashville Sounds.
May 10, 2024RecalledMilwaukee Brewers recalled RHP Janson Junk from Nashville Sounds.
May 6, 2024OptionedMilwaukee Brewers optioned RHP Janson Junk to Nashville Sounds.
Apr 27, 2024RecalledMilwaukee Brewers recalled RHP Janson Junk from Nashville Sounds.
Mar 19, 2024OptionedMilwaukee Brewers optioned RHP Janson Junk to Nashville Sounds.
Oct 5, 2023Status changeMilwaukee Brewers activated RHP Janson Junk.
Oct 1, 2023RecalledMilwaukee Brewers recalled RHP Janson Junk from Nashville Sounds.
Apr 13, 2023OptionedMilwaukee Brewers optioned RHP Janson Junk to Nashville Sounds.
Apr 11, 2023RecalledMilwaukee Brewers recalled RHP Janson Junk from Nashville Sounds.
Mar 15, 2023OptionedMilwaukee Brewers optioned RHP Janson Junk to Nashville Sounds.
Nov 23, 2022TradedMilwaukee Brewers traded RF Hunter Renfroe to Los Angeles Angels for RHP Janson Junk, RHP Elvis Peguero and LHP Adam Seminaris.
Oct 6, 2022RecalledLos Angeles Angels recalled RHP Janson Junk from Salt Lake Bees.
Aug 6, 2022OptionedLos Angeles Angels optioned RHP Janson Junk to Salt Lake Bees.
Jul 27, 2022RecalledLos Angeles Angels recalled RHP Janson Junk from Salt Lake Bees.
Jun 26, 2022OptionedLos Angeles Angels optioned RHP Janson Junk to Salt Lake Bees.
Jun 20, 2022RecalledLos Angeles Angels recalled RHP Janson Junk from Salt Lake Bees.
May 29, 2022OptionedLos Angeles Angels optioned RHP Janson Junk to Salt Lake Bees.
May 28, 2022RecalledLos Angeles Angels recalled RHP Janson Junk from Salt Lake Bees.
Mar 30, 2022OptionedLos Angeles Angels optioned RHP Janson Junk to Salt Lake Bees.
Oct 5, 2021RecalledLos Angeles Angels recalled RHP Janson Junk from Salt Lake Bees.
Sep 30, 2021OptionedLos Angeles Angels optioned RHP Janson Junk to Salt Lake Bees.

Service through 2025 per FanGraphs RosterResource; options and this-season service reconstructed from the MLB transaction log (reconstruction; FanGraphs shows 0). Rule 5 exposure deadline Nov 17, 2026.