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Isaiah Campbell

Relief Pitcher

Arizona Diamondbacks

Bats / Throws Right / Right
Date of Birth 8/15/1997 (28)
Height, Weight 6'4", 230 lb
Hometown Angra de Heroismo, PRT

2025 Season Stats

Needs more playing time to qualify
MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 7.2 7.04 1.83 8.6% 2.9%
- 3
Sv
- 51.0
IP
- 4.19
ERA
- 1.32
WHIP
- 22.9%
K%
- 9.3%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
96.0 11.9% 28.4% 58.7% 8.3% 5.22 2.29
- 94.6
FB MPH
- 12.5%
SwStr%
- 28.7%
CSW%
- 50.8%
Str-ICR
- 5.8%
MTK%
- 5.00
PLV
- 3.24
PLA

Articles

6/25/2024Fantasy Baseball Relief Pitcher Rankings - 6/25/24 Depth ChartBenjamin Haller

6/7/2024Fantasy Baseball Relief Pitcher Rankings - 6/7/24 Depth ChartJosh Mockensturm

4/12/2024Fantasy Baseball Relief Pitcher Rankings - 4/12/24 Depth ChartJosh Mockensturm

4/11/2024Fantasy Baseball Relief Pitcher Rankings - 4/11/24 Depth ChartBrendan Smith

4/10/2024Fantasy Baseball Relief Pitcher Rankings - 4/10/24 Depth ChartScott McDermott

See More Articles
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Isaiah Campbell 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 SEA 27 0 28.2 4-1 1 2 2.83 1.22 3.78 3.33 4.12 3.75 27.5% 10.8% 6.9 0.63 .282 10.5% 81.3% 37.0% 43.8% 13.4% 29.1% 0.53 4.95
2024 BOS 8 0 6.2 0-1 0 2 16.20 2.40 7.38 8.49 5.27 3.34 16.2% 5.4% 18.9 4.05 .423 37.5% 25.4% 37.9% 55.2% 11.8% 25.2% 0.29 5.11
2025 BOS 6 0 7.2 0-0 0 0 7.04 1.83 5.21 4.94 4.49 2.29 8.6% 2.9% 15.3 1.17 .414 25.0% 66.2% 26.7% 56.7% 11.9% 28.4% 0.49 5.22
RP MLB Percentile - - - --- - - - - - - - - - - - - - - - - - - - - -
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 41 0 43.0 4-2 1 4 5.65 1.51 4.59 4.34 4.32 3.42 21.9% 8.3% 10.3 1.26 .341 19.4% 66.6% 34.8% 49.2% 12.9% 28.3% 0.48 5.01

Isaiah Campbell Repertoire

2023 2024 2025 All
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Isaiah Campbell Game Log

Isaiah Campbell 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 SEA 27 0 28.2 4-1 0 1 2 478 299 179 120 22 16 3 1 2 33 13 1 2
2024 BOS 8 0 6.2 0-1 0 0 2 119 76 43 37 14 8 3 0 3 6 2 0 1
2025 BOS 6 0 7.2 0-0 0 0 0 109 80 29 35 13 11 0 1 1 3 1 1 0
RP MLB Percentile - - - --- - - - - - - - - - - - - - - - -
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 41 0 43.0 4-2 0 1 4 706 455 251 192 49 35 6 2 6 42 16 2 3

Isaiah Campbell 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 SEA 27.5% 10.8% .210 .314 .614 .273 .282 .301 .226 .293 .297 .353 88.3 86.8 14.8 3.78
2024 BOS 16.2% 5.4% .400 .743 1.175 .496 .423 .483 .330 .421 .330 .490 90.6 95.3 6.4 7.38
2025 BOS 8.6% 2.9% .394 .545 .974 .421 .414 .433 .329 .356 .344 .368 87.4 86.0 3.7 5.21
RP MLB Percentile - - - - - - - - - - - - - - - -
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 21.9% 8.3% .283 .445 .794 .345 .341 .371 .266 .330 .315 .388 88.6 88.9 10.4 4.59

Isaiah Campbell 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 SEA 46.9% (95.0) - - 39.7% (86.4) 13.4% (82.1) - - - - 46.9% 53.1%
2024 BOS 19.3% (93.6) 1.7% (91.1) - 47.9% (86.7) 31.1% (81.6) - - - - 21.0% 79.0%
2025 BOS 18.3% (96.0) 10.1% (94.7) - 45.0% (90.2) 14.7% (84.7) 11.9% (83.8) - - - 28.4% 71.6%
RP MLB Percentile - - - - - - - - - - -
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 37.8% (94.9) 1.8% (94.1) - 41.9% (87.1) 16.6% (87.1) 1.8% (83.8) - - - 39.7% 60.3%

Isaiah Campbell 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 SEA 31.7% (29) - - 27.9% (28) 23.4% (7) - - - - 31.7% 26.8%
2024 BOS 39.1% (3) 0.0% (0) - 21.1% (7) 24.3% (4) - - - - 36.0% 22.3%
2025 BOS 30.0% (2) 18.2% (1) - 30.6% (6) 25.0% (2) 30.8% (2) - - - 25.8% 29.5%
RP MLB Percentile - - - - - - - - - - -
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 32.2% (34) 15.4% (1) - 27.0% (41) 23.9% (13) 30.8% (2) - - - 31.4% 26.3%

Isaiah Campbell 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 SEA 43.8% 19.2% 26.0% 11.0% 35.6% 38.4% 34.2% 27.4% 18.2% 63.0% 23.3% 5.5% 8.2% 37.0%
2024 BOS 55.2% 17.2% 27.6% 0.0% 37.9% 44.8% 34.5% 20.7% 14.3% 62.0% 24.1% 3.4% 10.3% 37.9%
2025 BOS 56.7% 26.7% 13.3% 3.3% 33.3% 36.7% 33.3% 30.0% 17.4% 73.3% 23.3% 0.0% 3.3% 26.7%
RP MLB Percentile - - - - - - - - - - - - - -
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 49.2% 20.5% 23.5% 6.8% 35.6% 39.4% 34.1% 26.5% 17.4% 65.2% 23.5% 3.8% 7.6% 34.8%

Isaiah Campbell 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 SEA .210 .273 .282 .301 .226 .293 .297 .353 88.3 86.8 14.8 10.5% 37.0% 22.5%
2024 BOS .400 .496 .423 .483 .330 .421 .330 .490 90.6 95.3 6.4 37.5% 37.9% 29.7%
2025 BOS .394 .421 .414 .433 .329 .356 .344 .368 87.4 86.0 3.7 25.0% 26.7% 22.9%
RP MLB Percentile - - - - - - - - - - - - - -
RP MLB AVG .241 .310 .291 .321 .238 .314 .283 .363 88.4 89.8 13.0 18.1% 38.1% 25.4%
Career .283 .345 .341 .371 .266 .330 .315 .388 88.6 88.9 10.4 19.4% 34.8% 24.0%

Isaiah Campbell 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 SEA 43.5% 62.6% 46.9% 30.0% 28.6% 18.2% 71.4% 84.6% 48.1% 15.7% 13.4% 29.1% 15.3% 57.9% 0.53 51.3%
2024 BOS 47.9% 63.9% 50.4% 29.0% 23.3% 14.3% 76.7% 88.1% 50.0% 13.4% 11.8% 25.2% 24.4% 52.1% 0.29 45.4%
2025 BOS 56.0% 73.4% 56.9% 43.8% 21.0% 17.4% 79.0% 90.2% 57.1% 16.5% 11.9% 28.4% 27.5% 61.5% 0.49 58.7%
RP MLB Percentile - - - - - - - - - - - - - - - -
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 46.2% 64.4% 49.0% 31.6% 26.3% 17.4% 73.7% 86.3% 50.0% 15.4% 12.9% 28.3% 18.7% 57.5% 0.48 51.4%

Isaiah Campbell Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2023 SEA 43.5% 23.8% 28.0% 48.1% 31.8% 25.5% 42.7% 23.8% 48.1% 9.2%
2024 BOS 47.9% 36.1% 19.3% 44.5% 21.8% 23.5% 54.6% 26.1% 54.6% 5.0%
2025 BOS 56.0% 25.7% 32.1% 42.2% 33.0% 28.4% 38.5% 22.0% 45.9% 9.2%
RP MLB Percentile - - - - - - - - - -
RP MLB AVG 47.0% 34.2% 26.4% 39.4% 30.5% 25.1% 44.4% 29.4% 44.2% 7.0%
Career 46.2% 26.2% 27.2% 46.6% 30.3% 25.6% 44.1% 23.9% 48.9% 8.5%

Isaiah Campbell 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 SEA 56.9% 13.4% 30.8% 12.1% 62.2% 52.1% 20.2% 30.6% 21.8%
2024 BOS 69.7% 10.9% 19.3% 19.3% 56.8% 43.2% 14.5% 21.7% 21.7%
2025 BOS 67.9% 1.8% 30.3% 23.0% 71.4% 62.9% 23.0% 15.2% 9.1%
RP MLB Percentile - - - - - - - - -
RP MLB AVG 58.6% 11.9% 30.2% 14.4% 61.3% 50.4% 21.0% 24.2% 19.4%
Career 60.8% 11.2% 28.8% 15.4% 62.8% 52.4% 19.6% 27.1% 19.7%

Isaiah Campbell PLV

Hide 2025 MLB Percentile | Hide 2025 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2023 SEA 478 4.95 46.2% 17.2% 36.6% 9.6% 6.7% -3.2 -1 3.75
2024 BOS 119 5.11 49.6% 17.6% 32.8% 16.8% 5.9% 7.2 +8 3.34
2025 BOS 109 5.22 38.5% 34.9% 26.6% 11.9% 8.3% 4.5 +6 2.29
RP MLB Percentile - - - - - - - - - -
RP MLB AVG 840 5.00 46.2% 18.1% 35.8% 10.4% 5.8% 4.7 +4 3.24
Career 706 5.01 45.6% 20.0% 34.4% 11.2% 6.8% 8.5 +13 3.42
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