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Justin Martinez ARI RP R 

Born: 07/30/2001 Age: 23

FanGraphs Player Page

Signed By

Mark it 8 Dude for $4

On MLB 40-man: YES
Acquired: Amateur FA (DOM) Mar'18

Fri 3/21 Sat 3/22 Sun 3/23
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Positions
RP
2026 Earned Positions
RP

All Leagues
Average $5.30 Median $4.00
Old School (5x5)
Average $6.62 Median $5.00

Roster%
98.47%
Change
7Day 6.15%
30Day 16.92%


March 21, 2025 6:15 PM : Martinez signed a five-year, $18 million contract extension with the Diamondbacks on Friday, Aaron Hughes of SI.com reports.
Analysis: In addition to covering him for 2025, Martinez's new deal will buy out his three arbitration years and includes club options for 2030 and 2031, giving him immediate financial security while the Diamondbacks get their young, hard-throwing reliever locked into a team-friendly deal. Martinez turned in a 2.48 ERA and 1.31 WHIP with 91 strikeouts over 72.2 innings during his first full season in the majors last year, though it's still unknown if he, A.J. Puk or Kevin Ginkel will be the preferred ninth-inning option once the regular season begins.

MLB Stats

Pitching

YearTeamGGSIP WINS SV K ERA WHIP
2023ARI10010.0011412.600002.40000
2024ARI64072.258912.477061.30734

MILB Stats

Pitching

YearTeamGGSIP WINS SV K ERA WHIP
2018ARI (R)7723.100157.328571.97143
2018ARI (R)8520.200157.838712.08064
2019ARI (R)304.00070.000001.25000
2019ARI (R)9835.110483.056601.44340
2019ARI (R)6216.201233.240001.38000
2021ARI (A)7723.010246.652171.73913
2022ARI (CPX)101.00010.000001.00000
2022ARI (CPX)101.000118.000002.00000
2022ARI (A+)13027.011442.666671.29630
2022ARI (AA)204.11084.153851.84616
2022ARI (AAA)304.21083.857141.71428
2023ARI (AAA)47049.129674.195951.64189
2024ARI (AAA)606.203142.700001.05000

Spring Training Stats

Pitching

YearTeamGGSIP WINS SV K ERA WHIP
2023ARI (ST)706.21195.400001.50000
2024ARI (ST)505.00073.600001.80000
2025ARI (ST)807.010106.428571.14286

Recent Games

Last 10 MLB Games

DateTeamOpponentGSWinSaveHoldIPTBF RERHKBBHBPHR
Sep 28, 2024 ARI SDP 0 0 0 0 1.1 4 0 0 0 1 0 0 0
Sep 25, 2024 ARI SFG 0 0 0 0 1.1 7 1 1 3 2 1 0 0
Sep 22, 2024 ARI @MIL 0 0 0 0 0.1 4 1 1 3 1 0 0 0
Sep 20, 2024 ARI @MIL 0 0 0 1 1.0 5 0 0 2 2 0 0 0
Sep 19, 2024 ARI @MIL 0 0 0 0 1.0 3 0 0 0 1 0 0 0
Sep 18, 2024 ARI @COL 0 0 0 0 1.0 4 0 0 0 0 1 0 0
Sep 15, 2024 ARI MIL 0 0 0 0 1.2 8 2 1 1 2 2 0 0
Sep 13, 2024 ARI MIL 0 0 0 0 1.0 3 0 0 0 1 0 0 0
Sep 10, 2024 ARI TEX 0 0 0 0 1.0 3 0 0 0 2 0 0 0
Sep 4, 2024 ARI @SFG 0 0 0 0 1.0 6 2 2 2 1 1 0 0
Totals 0 0 0 1 10.2 47 6 5 11 13 5 0 0

Last 10 MILB Games

DateLevelTeamOpponentGSWinSave IPTBFRERHKBBHBPHR
Apr 13, 2024 AAA RNO @TAC 0 0 1 1.0 3 0 0 0 3 0 0 0
Apr 11, 2024 AAA RNO @TAC 0 0 0 1.0 5 2 2 1 2 1 0 1
Apr 7, 2024 AAA RNO SAC 0 0 1 1.0 3 0 0 0 2 0 0 0
Apr 4, 2024 AAA RNO SAC 0 0 0 1.0 7 2 0 2 3 1 0 0
Apr 2, 2024 AAA RNO SAC 0 0 0 1.2 7 1 0 1 1 1 1 0
Mar 29, 2024 AAA RNO @LV 0 0 1 1.0 3 0 0 0 3 0 0 0
Sep 24, 2023 AAA RNO @LV 0 0 0 0.2 3 0 0 0 2 1 0 0
Sep 22, 2023 AAA RNO @LV 0 0 1 1.0 5 0 0 1 1 1 0 0
Sep 19, 2023 AAA RNO @LV 0 0 1 1.0 4 0 0 0 2 1 0 0
Sep 16, 2023 AAA RNO SL 0 0 1 1.0 3 0 0 0 2 0 0 0
Totals 0 0 6 10.1 43 5 2 5 21 6 1 1

Last 10 Spring Training Games

DateLevelTeamOpponentGSWinSave IPTBFRERHKBBHBPHR
Mar 5, 2024 ST AZ SD 0 0 0 1.0 4 0 0 1 1 0 0 0
Totals 0 0 0 1.0 4 0 0 1 1 0 0 0

Avg Salary & Roster%

Last 30 days

2026 Position Eligibility Progress

To gain eligibility, a player must have 5 GS or 10 G at a position in the majors, or 20 G at a position in the minors.

Transaction History

Date Transaction Type Team Salary
June 13, 2024 12:45 PM add Mark it 8 Dude $2
October 10, 2024 12:54 AM increase Mark it 8 Dude $4

Recent Trades for Justin Martinez in Old School (5x5)

Date Proposing Team Proposing Team Gives Accepting Team Accepting Team Gives
March 8, 2025 10:53 AM SeaWolves Luis Robert Jr. CHW OF R $16
Justin Martinez ARI RP R $5 
$14 loan 		Miami Chops Kristian Campbell BOS ST 2B/SS/OF R $2
Cam Smith HOU ST 3B R $2
February 20, 2025 11:56 AM Bryan Price's 77 Bombs Justin Martinez ARI RP R $3 
 Sweetjayy21 Gavin Lux CIN 2B L $4 
January 30, 2025 1:12 PM Naylor I barely know her Cal Raleigh SEA C S $7
Matt Wallner MIN OF L $5 
 Team Peter Calvin Faucher MIA RP R $4
Justin Martinez ARI RP R $9 
Brendan Donovan STL 2B/3B/OF L $8
January 30, 2025 12:05 PM Where did Tsutsugo? Joc Pederson TEX Util L $3
Oneil Cruz PIT SS/OF L $18
Justin Martinez ARI RP R $12 
Jackson Holliday BAL 2B L $13
Brandon Sproat NYM ST SP R $2
 Fomorians Shohei Ohtani LAD Util/SP R $58 
January 21, 2025 10:41 PM Miami Giraffes 🦒 Francisco Alvarez NYM C R $8 OUT
 Lefthanded Carp 🐟 Justin Martinez ARI RP R $5 
January 7, 2025 5:53 PM The Reggie Jefferson's Emmanuel Clase CLE RP R $18
 All Proofs Justin Martinez ARI RP R $3 
December 29, 2024 5:52 PM Sho Time Cole Young SEA ST 2B/SS L $3
Chase Dollander COL ST SP R $3
Christian Moore LAA ST 2B R $3
Jac Caglianone KCR ST 1B L $5
 2 Pfaadt 2 Furious Michael Kopech LAD RP R $8 15IL 
Justin Martinez ARI RP R $4 
December 19, 2024 11:36 AM Where did Tsutsugo? Raisel Iglesias ATL RP R $25
 Fomorians Justin Martinez ARI RP R $12 
Cade Smith CLE RP R $3
December 17, 2024 6:30 AM Holly Jolly Elves Jordan Romano PHI RP R $9
Corbin Burnes BAL SP R $32 
Calvin Faucher MIA RP R $8
Justin Martinez ARI RP R $3 
Josue De Paula LAD ST OF L $2
 Permanent Waves Robert Suarez SDP RP R $12
Kristian Campbell BOS ST 2B/SS/OF R $6
November 18, 2024 1:57 PM Doris from Rego Park Justin Martinez ARI RP R $3 
 The Bryce is Right Christopher Morel TBR 2B/3B/OF R $13