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Jackson Kowar

Relief Pitcher

Baltimore Orioles

Bats / Throws Right / Right
Date of Birth 10/4/1996 (29)
Height, Weight 6'5", 200 lb
Hometown Weddington, NC

2025 Season Stats

Needs more playing time to qualify
MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 17.0 4.24 1.24 21.1% 9.9%
- 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
97.3 12.1% 24.2% 45.2% 4.6% 4.89 3.62
- 94.6
FB MPH
- 12.5%
SwStr%
- 28.7%
CSW%
- 50.8%
Str-ICR
- 5.8%
MTK%
- 5.00
PLV
- 3.24
PLA

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Jackson Kowar 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
2021 KC 9 8 30.1 0-6 0 0 11.27 2.08 7.44 6.46 5.67 5.90 18.8% 13.0% 12.8 2.08 .375 28.0% 48.9% 47.6% 36.9% 10.5% 26.0% 0.36 4.70
2022 KC 7 0 15.2 0-0 0 2 9.77 2.43 5.80 6.47 4.55 3.92 20.7% 13.4% 15.5 2.30 .460 40.0% 64.8% 46.3% 50.0% 11.9% 29.6% 0.51 5.05
2023 KC 23 0 28.0 2-0 0 0 6.43 1.93 5.52 5.29 5.25 5.31 21.2% 14.6% 10.9 1.29 .361 20.0% 62.8% 33.3% 44.8% 12.0% 28.2% 0.47 4.75
2025 SEA 15 0 17.0 2-0 0 1 4.24 1.24 4.59 5.84 5.23 3.62 21.1% 9.9% 7.4 2.12 .227 23.5% 85.4% 43.8% 33.3% 12.1% 24.2% 0.34 4.89
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 54 8 91.0 4-6 0 3 8.21 1.93 6.03 5.96 5.25 4.95 20.3% 13.1% 11.7 1.88 .363 26.4% 60.6% 42.5% 41.1% 11.4% 27.0% 0.42 4.81

Jackson Kowar Repertoire

2021 2022 2023 2025 All
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Jackson Kowar Game Log

Jackson Kowar 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
2021 KC 9 8 30.1 0-6 1 0 0 631 368 263 154 43 25 11 0 7 29 20 2 8
2022 KC 7 0 15.2 0-0 0 0 2 311 197 114 82 27 16 5 2 4 17 11 0 0
2023 KC 23 0 28.0 2-0 0 0 0 568 343 225 137 34 23 7 0 4 29 20 1 5
2025 SEA 15 0 17.0 2-0 0 0 1 281 169 113 71 14 8 2 0 4 15 7 1 2
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 54 8 91.0 4-6 1 0 3 1,791 1,077 715 444 118 72 25 2 19 90 58 4 15

Jackson Kowar Advanced

Hide 2025 MLB Percentile | Hide 2025 MLB Average
Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2021 KC 18.8% 13.0% .336 .586 1.008 .422 .375 .417 .326 .417 .364 .476 92.8 91.9 14.6 7.44
2022 KC 20.7% 13.4% .380 .676 1.139 .482 .460 .500 .291 .377 .345 .432 87.5 87.2 9.5 5.80
2023 KC 21.2% 14.6% .293 .457 .858 .377 .361 .391 .266 .358 .326 .395 87.3 87.6 12.5 5.52
2025 SEA 21.1% 9.9% .222 .444 .754 .328 .227 .292 .223 .334 .223 .378 91.8 95.7 24.8 4.59
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 20.3% 13.1% .312 .540 .945 .408 .363 .404 .284 .382 .327 .432 90.0 90.9 14.7 6.03

Jackson Kowar Pitch › Mix

Hide 2025 MLB Percentile | Hide 2025 MLB Average
Year Team FF% (MPH) SI% (MPH) FC% (MPH) SL% (MPH) ST% (MPH) CB% (MPH) CH% (MPH) FS% (MPH) KN% (MPH) Fastball% Secondary%
2021 KC 55.3% (95.6) - - 12.0% (83.3) - 2.2% (79.1) 30.4% (86.2) - - 55.3% 44.7%
2022 KC 46.6% (95.8) - - 9.6% (83.1) - 1.0% (81.0) 42.8% (85.7) - - 46.6% 53.4%
2023 KC 38.2% (96.9) - - 26.2% (86.1) - - 35.6% (86.6) - - 38.2% 61.8%
2025 SEA 57.7% (97.3) 1.4% (96.4) - 35.6% (86.2) - - 5.3% (87.0) - - 59.1% 40.9%
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 48.7% (96.3) 0.2% (96.4) - 19.8% (85.3) - 0.9% (79.4) 30.3% (86.3) - - 49.0% 51.0%

Jackson Kowar 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%
2021 KC 23.5% (24) - - 34.2% (12) - 28.6% (1) 27.1% (29) - - 23.5% 29.1%
2022 KC 25.5% (11) - - 33.3% (2) - 0.0% (0) 33.8% (24) - - 25.5% 33.1%
2023 KC 29.0% (17) - - 32.2% (24) - - 24.3% (27) - - 29.0% 27.6%
2025 SEA 21.0% (11) 25.0% (0) - 32.0% (23) - - 6.7% (0) - - 21.1% 28.7%
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 24.7% (63) 25.0% (0) - 32.7% (61) - 23.5% (1) 27.1% (80) - - 24.7% 29.2%

Jackson Kowar 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
2021 KC 36.9% 31.1% 24.3% 7.8% 42.7% 35.9% 40.8% 23.3% 16.0% 52.4% 28.2% 8.7% 10.7% 47.6%
2022 KC 50.0% 24.1% 18.5% 7.4% 31.5% 48.1% 18.5% 33.3% 16.4% 53.7% 33.3% 5.6% 7.4% 46.3%
2023 KC 44.8% 23.0% 23.0% 9.2% 34.5% 43.7% 25.3% 31.0% 16.9% 66.6% 25.3% 2.3% 5.7% 33.3%
2025 SEA 33.3% 10.4% 35.4% 20.8% 22.9% 29.2% 41.7% 29.2% 18.9% 56.2% 25.0% 8.3% 10.4% 43.8%
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 41.1% 24.0% 24.7% 10.3% 34.9% 39.4% 32.2% 28.4% 16.8% 57.5% 27.7% 6.2% 8.6% 42.5%

Jackson Kowar 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%
2021 KC .336 .422 .375 .417 .326 .417 .364 .476 92.8 91.9 14.6 28.0% 47.6% 31.8%
2022 KC .380 .482 .460 .500 .291 .377 .345 .432 87.5 87.2 9.5 40.0% 46.3% 30.5%
2023 KC .293 .377 .361 .391 .266 .358 .326 .395 87.3 87.6 12.5 20.0% 33.3% 21.2%
2025 SEA .222 .328 .227 .292 .223 .334 .223 .378 91.8 95.7 24.8 23.5% 43.8% 29.6%
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 .312 .408 .363 .404 .284 .382 .327 .432 90.0 90.9 14.7 26.4% 42.5% 27.9%

Jackson Kowar 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
2021 KC 43.1% 58.3% 42.8% 23.4% 24.4% 16.0% 75.6% 84.4% 56.0% 15.5% 10.5% 26.0% 16.3% 51.5% 0.36 42.8%
2022 KC 43.7% 63.3% 45.7% 33.1% 26.1% 16.4% 73.9% 90.5% 50.0% 17.7% 11.9% 29.6% 17.4% 54.7% 0.51 47.3%
2023 KC 42.8% 60.4% 44.2% 27.7% 27.1% 16.9% 72.9% 87.0% 47.8% 16.2% 12.0% 28.2% 15.3% 54.4% 0.47 50.2%
2025 SEA 39.5% 60.1% 48.0% 28.2% 25.2% 18.9% 74.8% 88.5% 50.0% 12.1% 12.1% 24.2% 17.1% 55.2% 0.34 45.2%
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 42.5% 60.1% 44.6% 27.2% 25.7% 16.8% 74.3% 86.9% 51.1% 15.6% 11.4% 27.0% 16.3% 53.5% 0.42 46.3%

Jackson Kowar Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2021 KC 43.1% 38.5% 22.2% 39.3% 30.7% 25.7% 43.6% 25.2% 52.6% 7.3%
2022 KC 43.7% 45.7% 22.5% 31.8% 24.8% 26.0% 49.2% 31.2% 46.3% 6.4%
2023 KC 42.8% 38.6% 24.8% 36.6% 27.3% 22.0% 50.7% 19.7% 55.5% 5.8%
2025 SEA 39.5% 36.3% 22.4% 41.3% 36.3% 22.4% 41.3% 24.2% 53.4% 6.4%
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 42.5% 39.4% 23.1% 37.5% 29.5% 24.1% 46.5% 24.3% 52.5% 6.5%

Jackson Kowar Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2021 KC 57.4% 17.0% 25.7% 12.7% 53.2% 44.8% 20.4% 21.0% 17.9%
2022 KC 60.1% 13.8% 26.0% 16.0% 52.4% 37.8% 21.9% 30.9% 21.0%
2023 KC 57.4% 13.2% 29.4% 11.3% 59.9% 51.8% 22.1% 22.8% 17.4%
2025 SEA 57.3% 13.2% 29.9% 14.9% 54.9% 43.7% 12.4% 22.6% 17.9%
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 57.8% 14.6% 27.6% 13.2% 55.4% 45.5% 20.0% 23.5% 18.2%

Jackson Kowar PLV

Hide 2025 MLB Percentile | Hide 2025 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2021 KC 631 4.70 37.9% 17.7% 44.4% -6.5% 6.2% 13.9 +13 5.90
2022 KC 311 5.05 49.8% 12.2% 37.9% 11.9% 1.9% 14.1 +10 3.92
2023 KC 568 4.75 38.7% 20.1% 41.2% -2.5% 6.2% 8.8 +6 5.31
2025 SEA 281 4.89 40.8% 23.0% 36.2% 4.6% 4.6% 1.5 +1 3.62
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 1,791 4.81 40.7% 18.4% 41.0% -0.3% 5.2% 38.3 +30 4.95
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