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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%
50th 3
Sv
350th 51.0
IP
195th 4.19
ERA
147th 1.32
WHIP
19th 22.9%
K%
349th 9.3%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
99.3 14.1% 33.1% 51.7% 5.6% 4.49 5.09
4th 94.6
FB MPH
88th 12.5%
SwStr%
24th 28.7%
CSW%
141st 50.8%
Str-ICR
203rd 5.3%
MTK%
351st 4.99
PLV
348th 3.22
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 3.85 4.06 3.85 5.09 32.8% 17.9% 4.1 0.59 .207 25.0% 68.0% 23.3% 53.3% 14.1% 33.1% 0.58 4.49
RP MLB Percentile 7 0 0 14-46 85 41 44 57 55 47 69 1 95 1 99 81 95 19 31 100 83 73 92 78 0
RP MLB AVG 42 2 51.0 3-3 3 7 4.19 1.32 4.16 4.16 4.20 3.22 22.9% 9.3% 8.3 1.11 .291 18.1% 72.4% 38.1% 44.2% 12.5% 28.7% 0.51 4.99
Career 91 0 98.0 6-8 14 13 3.77 1.41 3.53 3.26 3.47 3.77 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 7 0 0 14-46 0 85 41 0 0 96 0 100 100 95 48 95 11 74 25 30
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 3.85
RP MLB Percentile 95 1 99 98 92 79 95 96 95 55 30 72 100 99 89 55
RP MLB AVG 22.9% 9.3% .241 .393 .712 .310 .291 .321 .238 .314 .283 .363 88.4 89.8 13.0 4.16
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 20.8% (99.9) 38.7% (99.3) - 9.7% (91.2) - - - 30.9% (87.9) - 59.5% 40.5%
RP MLB Percentile 12 (99) 73 (99) - 9 (99) - - - 83 (70) - 82.6% 17.1%
RP MLB AVG 40.6% (94.6) 27.4% (93.8) 20.3% (89.5) 27.8% (85.9) 20.4% (82.2) 16.9% (79.8) 16.4% (86.2) 18.3% (86.5) 16.9% (64.1) 48.1% 51.9%
Career 19.8% (100.4) 37.9% (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 33.9% (12) 30.8% (5) - 26.9% (4) - - - 37.3% (17) - 31.9% 34.9%
RP MLB Percentile 93 (24) 70 (58) - 29 (87) - - - 95 (42) - 86.3% 89.7%
RP MLB AVG 27.6% (33) 27.9% (12) 26.0% (16) 29.7% (30) 28.9% (19) 28.2% (17) 22.0% (17) 23.6% (21) 14.2% (0) 28.0% 28.9%
Career 23.7% (40) 30.6% (55) - 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 83 68 1 79 86 84 1 84 1 100 85 99 95 100
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 99 79 95 96 95 55 30 72 100 99 89 19 100 100
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 45.0% 56.9% 37.9% 22.3% 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 0 0 2 97 1 97 100 69 87 73 92 1 7 78 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 43.8% 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 45.0% 43.1% 21.9% 34.9% 33.1% 25.3% 41.6% 43.1% 34.9% 5.9%
RP MLB Percentile 27 91 95 26 61 46 36 99 5 16
RP MLB AVG 47.0% 34.2% 26.4% 39.4% 30.5% 25.1% 44.4% 29.4% 44.2% 7.0%
Career 43.8% 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 67 27 27 25 5 54 58 44 97
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

Hide 2025 MLB Percentile | Hide 2025 MLB Average
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 4.49 41.3% 13.4% 45.4% -4.1% 5.6% -4.1 -6 5.09
RP MLB Percentile 0 0 7 2 0 0 40 85 89 1
RP MLB AVG 840 4.99 46.2% 18.0% 35.7% 10.5% 5.3% 4.8 +4 3.22
Career 1,682 4.91 45.2% 17.2% 37.5% 7.7% 4.0% 2.2 -2 3.77
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