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Justin Martinez

#63 - Relief Pitcher

Arizona Diamondbacks

Bats / Throws Right / Right
Date of Birth 7/30/2001 (24)
Height, Weight 6'3", 180 lb
Hometown Bonao, DOM

2025 Season Stats

Needs more playing time to qualify
MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
5 15.1 4.11 1.24 32.8% 17.9%
57th 3
Sv
355th 51.0
IP
201st 4.19
ERA
154th 1.32
WHIP
24th 22.9%
K%
354th 9.3%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
99.3 14.1% 33.1% 51.7% 6.3% 4.47 5.14
4th 94.6
FB MPH
97th 12.5%
SwStr%
31st 28.7%
CSW%
148th 50.8%
Str-ICR
220th 5.8%
MTK%
356th 5.00
PLV
353rd 3.24
PLA

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Justin Martinez Overview

Hide 2025 MLB Percentile | Hide 2025 MLB Average
Year Team G GS IP W-L Sv Hld ERA WHIP xERA FIP xFIP PLA K% BB% H/9 HR/9 BABIP HR/FB% LOB% ICR GB% SwStr% CSW% IPR PLV
2023 ARI 10 0 10.0 0-0 1 0 12.60 2.40 6.62 6.96 6.90 5.94 24.6% 19.3% 11.7 1.80 .393 20.0% 51.7% 40.0% 43.3% 13.1% 28.8% 0.43 4.77
2024 ARI 64 0 72.2 5-6 8 9 2.48 1.31 3.04 2.58 2.92 3.20 29.5% 11.7% 7.3 0.25 .324 9.5% 75.4% 31.8% 60.1% 16.3% 31.9% 0.60 5.04
2025 ARI 17 0 15.1 1-2 5 4 4.11 1.24 3.88 4.06 3.85 5.14 32.8% 17.9% 4.1 0.59 .207 25.0% 68.0% 23.3% 53.3% 14.1% 33.1% 0.58 4.47
RP MLB Percentile 10 34 2 25-56 84 46 45 58 56 47 69 3 94 2 98 81 94 21 32 99 82 74 92 77 2
RP MLB AVG 42 2 51.0 3-3 3 7 4.19 1.32 4.19 4.16 4.20 3.24 22.9% 9.3% 8.3 1.11 .291 18.1% 72.4% 38.1% 44.2% 12.5% 28.7% 0.51 5.00
Career 91 0 98.0 6-8 14 13 3.77 1.41 3.53 3.26 3.47 3.78 29.4% 13.7% 7.3 0.46 .318 14.3% 70.3% 31.8% 57.1% 15.5% 31.7% 0.57 4.91

Justin Martinez Repertoire

2023 2024 2025 All
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Justin Martinez Game Log

Justin Martinez Standard

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Year Team G GS IP W-L QS Sv Hld P Strikes Balls TBF H 1B 2B 3B HR K BB HB WP
2023 ARI 10 0 10.0 0-0 0 1 0 236 131 105 57 13 8 2 1 2 14 11 2 1
2024 ARI 64 0 72.2 5-6 0 8 9 1,177 743 434 308 59 46 10 1 2 91 36 2 8
2025 ARI 17 0 15.1 1-2 0 5 4 269 153 116 67 7 4 2 0 1 22 12 3 2
RP MLB Percentile 10 34 2 25-56 47 84 46 2 2 95 2 99 99 96 73 95 14 77 32 42
RP MLB AVG 42 2 51.0 3-3 0 3 7 840 539 302 216 46 30 9 1 6 50 19 2 2
Career 91 0 98.0 6-8 0 14 13 1,682 1,027 655 432 79 58 14 2 5 127 59 7 11

Justin Martinez Advanced

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Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2023 ARI 24.6% 19.3% .295 .523 .979 .420 .393 .433 .263 .387 .343 .442 84.7 88.5 8.3 6.62
2024 ARI 29.5% 11.7% .221 .288 .604 .269 .324 .331 .216 .263 .318 .319 85.2 81.8 -0.6 3.04
2025 ARI 32.8% 17.9% .135 .231 .559 .270 .207 .233 .186 .301 .299 .337 79.0 81.8 5.7 3.88
RP MLB Percentile 94 2 98 97 91 79 94 95 94 62 32 71 99 - 88 56
RP MLB AVG 22.9% 9.3% .241 .393 .712 .310 .291 .321 .238 .314 .283 .363 88.4 89.8 13.0 4.19
Career 29.4% 13.7% .218 .309 .645 .290 .318 .332 .217 .287 .319 .338 84.4 83.7 1.3 3.53

Justin Martinez Pitch › Mix

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Year Team FF% (MPH) SI% (MPH) FC% (MPH) SL% (MPH) ST% (MPH) CB% (MPH) CH% (MPH) FS% (MPH) KN% (MPH) Fastball% Secondary%
2023 ARI 60.2% (100.5) 0.4% (99.1) - 15.3% (89.1) - - - 24.2% (88.9) - 60.6% 39.4%
2024 ARI 11.5% (100.4) 45.2% (100.2) - 21.6% (89.8) - - - 21.8% (89.8) - 56.7% 43.3%
2025 ARI 19.7% (99.9) 39.8% (99.3) - 9.7% (91.2) - - - 30.9% (87.9) - 59.5% 40.5%
RP MLB Percentile - 75 (99) - 9 (99) - - - 83 (70) - 82.0% 18.5%
RP MLB AVG 40.6% (94.6) 27.5% (93.9) 20.4% (89.5) 27.9% (85.9) 21.2% (82.2) 16.9% (79.8) 16.4% (86.2) 18.4% (86.5) 16.9% (64.1) 48.0% 51.9%
Career 19.6% (100.4) 38.0% (100.1) - 18.8% (89.8) - - - 23.5% (89.3) - 57.7% 42.3%

Justin Martinez Pitch › Results

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Year Team FF CSW% SI CSW% FC CSW% SL CSW% ST CSW% CB CSW% CH CSW% FS CSW% KN CSW% Fastball CSW% Secondary CSW%
2023 ARI 23.2% (9) 100.0% (1) - 36.1% (7) - - - 36.8% (14) - 23.8% 36.6%
2024 ARI 20.0% (19) 30.5% (49) - 40.6% (50) - - - 32.8% (74) - 28.3% 36.7%
2025 ARI 34.0% (11) 30.8% (6) - 26.9% (4) - - - 37.3% (17) - 31.9% 34.9%
RP MLB Percentile 86 (-) 70 (53) - 29 (88) - - - 95 (42) - 85.9% 89.1%
RP MLB AVG 27.6% (33) 27.9% (12) 26.1% (16) 29.7% (30) 28.7% (20) 28.2% (17) 22.0% (17) 23.4% (22) 14.2% (0) 28.0% 28.9%
Career 23.6% (39) 30.6% (56) - 38.9% (61) - - - 34.3% (105) - 28.2% 36.4%

Justin Martinez Batted Ball › Contact

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Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR
2023 ARI 43.3% 20.0% 33.3% 3.3% 43.3% 30.0% 33.3% 36.7% 14.0% 60.0% 23.3% 13.3% 3.3% 40.0%
2024 ARI 60.1% 24.2% 11.8% 3.9% 29.2% 35.2% 36.3% 28.5% 16.0% 68.0% 24.7% 4.5% 2.8% 31.8%
2025 ARI 53.3% 20.0% 13.3% 13.3% 30.0% 46.7% 23.3% 30.0% 12.6% 76.7% 20.0% 0.0% 3.3% 23.3%
RP MLB Percentile 82 68 3 78 86 84 3 83 3 99 85 98 94 99
RP MLB AVG 44.2% 22.0% 23.8% 10.1% 35.1% 40.8% 33.7% 25.5% 18.0% 61.7% 24.4% 6.3% 7.6% 38.1%
Career 57.1% 23.1% 14.7% 5.0% 31.1% 36.0% 34.3% 29.7% 15.2% 68.1% 23.9% 5.0% 2.9% 31.8%

Justin Martinez Batted Ball › Outcomes

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Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR IPA%
2023 ARI .295 .420 .393 .433 .263 .387 .343 .442 84.7 88.5 8.3 20.0% 40.0% 21.1%
2024 ARI .221 .269 .324 .331 .216 .263 .318 .319 85.2 81.8 -0.6 9.5% 31.8% 18.5%
2025 ARI .135 .270 .207 .233 .186 .301 .299 .337 79.0 81.8 5.7 25.0% 23.3% 10.4%
RP MLB Percentile 98 79 94 95 94 62 32 71 99 - 88 21 99 99
RP MLB AVG .241 .310 .291 .321 .238 .314 .283 .363 88.4 89.8 13.0 18.1% 38.1% 25.4%
Career .218 .290 .318 .332 .217 .287 .319 .338 84.4 83.7 1.3 14.3% 31.8% 17.6%

Justin Martinez Approach › Plate Discipline

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Year Team Zone% Str% Swing% O-Sw% Whiff% Foul Str% Con% Z-Con% O-Con% CS% SwStr% CSW% BIP% PLUS% IPR Str-ICR
2023 ARI 36.0% 55.5% 39.8% 27.8% 33.0% 14.0% 67.0% 76.9% 54.8% 15.7% 13.1% 28.8% 12.7% 50.0% 0.43 45.3%
2024 ARI 45.0% 63.1% 47.5% 32.6% 34.3% 16.0% 65.7% 78.4% 44.5% 15.6% 16.3% 31.9% 15.2% 58.1% 0.60 53.4%
2025 ARI 44.6% 56.9% 37.9% 22.1% 37.3% 12.6% 62.7% 68.1% 51.5% 19.0% 14.1% 33.1% 11.2% 54.3% 0.58 51.7%
RP MLB Percentile 27 2 2 3 96 3 96 99 69 86 74 92 3 9 77 59
RP MLB AVG 47.0% 63.9% 47.7% 30.2% 26.2% 18.0% 73.8% 82.9% 56.2% 16.2% 12.5% 28.7% 17.1% 58.4% 0.51 50.8%
Career 43.7% 61.1% 44.9% 30.2% 34.6% 15.2% 65.4% 76.8% 46.9% 16.2% 15.5% 31.7% 14.2% 56.4% 0.57 52.0%

Justin Martinez Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2023 ARI 36.0% 46.6% 22.5% 30.9% 25.0% 23.7% 51.3% 33.1% 44.5% 6.8%
2024 ARI 45.0% 43.4% 24.7% 31.9% 29.7% 22.8% 47.5% 37.4% 37.9% 5.6%
2025 ARI 44.6% 43.1% 21.9% 34.9% 33.1% 25.3% 41.6% 43.1% 34.9% 5.9%
RP MLB Percentile 27 91 94 27 61 47 37 98 7 19
RP MLB AVG 47.0% 34.2% 26.4% 39.4% 30.5% 25.1% 44.4% 29.4% 44.2% 7.0%
Career 43.7% 43.8% 24.0% 32.2% 29.6% 23.3% 47.1% 37.7% 38.3% 5.8%

Justin Martinez Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2023 ARI 53.4% 22.5% 25.8% 10.3% 44.6% 39.3% 15.1% 27.9% 23.0%
2024 ARI 60.5% 12.6% 29.1% 15.3% 62.6% 52.5% 19.8% 27.2% 26.6%
2025 ARI 59.9% 13.0% 28.6% 13.0% 53.7% 50.7% 21.7% 23.4% 28.6%
RP MLB Percentile 68 29 29 27 7 55 58 44 96
RP MLB AVG 58.6% 11.9% 30.2% 14.4% 61.3% 50.4% 21.0% 24.2% 19.4%
Career 59.4% 14.0% 28.5% 14.3% 58.9% 50.5% 19.5% 26.7% 26.5%

Justin Martinez PLV

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Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2023 ARI 236 4.77 42.4% 15.7% 41.9% 0.4% 3.0% 7.4 +4 5.94
2024 ARI 1,177 5.04 46.7% 18.4% 34.8% 11.9% 3.8% -1.2 -1 3.20
2025 ARI 269 4.47 40.5% 14.5% 45.0% -4.5% 6.3% -4.2 -6 5.14
RP MLB Percentile 2 2 7 8 2 2 39 83 87 3
RP MLB AVG 840 5.00 46.2% 18.1% 35.8% 10.4% 5.8% 4.7 +4 3.24
Career 1,682 4.91 45.1% 17.4% 37.5% 7.7% 4.1% 2.1 -3 3.78
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