Geraldo Perdomo

SS · S/R · age 26.9 · AZ

XIX-AXX-DOCTOBER OK

Roster status
ACTIVE
Service thru 2025
4+015
Service now / projected
5+015 / 5+015
Option years left (2026)
2
Assignments left this season
5 of 5
Contract (2027)
SIGNED THRU 2029 + 2030 CLUB OPTION
Acquired
Amateur FA (DOM) Jul'16
Outrighted / DFA'd before
0 / 0
Contract
4 yr, $45M (2026-29), 2030 club option

Next 90 days, by the model

Stays put
98%
Designated
<1%
Optioned
<1%
Traded
2%
Released or non-tendered
<1%

Pushing the cut risk around: this season's WAR (3.97) lowers it, last season's WAR (7.13) lowers it, this season's plate appearances (625) lowers it.

Context the model does not weigh: ZiPS projects 4.3 WAR, 4.0 WAR this season; 6 IF on the 40-man, of whom Ildemaro Vargas 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?

AZ returns 9 IF on the 40-man once 1 free agent leaves; about 8 IF jobs survive a normal winter. By his own recent record he ranks 1st among the returners (4.1 WAR against a bar of -0.5), 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 2nd (4.1 WAR, bar 0.5), worth 100% kept on the same model.

By recent record: returning IFProj. WAR
1. Geraldo Perdomo4.1
2. Ketel Marte3.6
3. Nolan Arenado2.2
4. Jose L. Fernandez0.7
5. Tim Tawa0.4
6. Pavin Smith0.1
7. Tommy Troy0.1
8. Gino Grooverlast job-0.5
9. Tyler Locklear-1.3
By ZiPS / Steamer: returning IFProj. WAR
1. Ketel Marte4.4
2. Geraldo Perdomo4.1
3. Nolan Arenado1.9
4. Tyler Locklear0.7
5. Gino Groover0.6
6. Pavin Smith0.5
7. Tommy Troy0.5
8. Tim Tawalast job0.5
9. Jose L. Fernandez-0.2

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 (4 yr, $45M (2026-29), 2030 club 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. 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 (4 yr, $45M (2026-29), 2030 club option): 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
2021171yesMar 16, 2021 to Apr 3, 2021 (2d, spring training)Apr 10, 2021 to Sep 26, 2021 (169d)

Transaction log

Jun 11, 2024Status changeArizona Diamondbacks activated SS Geraldo Perdomo from the 10-day injured list.
Apr 7, 2024Status changeArizona Diamondbacks placed SS Geraldo Perdomo on the 10-day injured list retroactive to April 4, 2024. Right meniscus tear.
Sep 26, 2021RecalledArizona Diamondbacks recalled SS Geraldo Perdomo, , , , , and from Reno Aces.
Apr 10, 2021OptionedArizona Diamondbacks optioned SS Geraldo Perdomo to Diamondbacks Alternate Training Site.
Apr 3, 2021RecalledArizona Diamondbacks recalled SS Geraldo Perdomo from Diamondbacks Alternate Training Site.
Mar 16, 2021OptionedArizona Diamondbacks optioned SS Geraldo Perdomo to Reno Aces.
Nov 20, 2020Contract selectedArizona Diamondbacks selected the contract of SS Geraldo Perdomo from Jackson Generals.
Jul 2, 2016Signed as free agentArizona Diamondbacks signed free agent SS Geraldo Perdomo to a minor league contract.

Service through 2025 per FanGraphs RosterResource; options and this-season service reconstructed from the MLB transaction log (reconstruction; FanGraphs shows 2). Rule 5 exposure deadline Nov 17, 2026.