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George Kirby

#68 - Starting Pitcher

Seattle Mariners

Bats / Throws Right / Right
Date of Birth 2/4/1998 (28)
Height, Weight 6'4", 215 lb
Hometown Rye, NY

2026 Season Stats

MLB Rank MLB Average
W-L IP ERA WHIP K% BB%
8-9 132.0 3.68 1.27 20.6% 5.2%
32nd 5
W
20th 91.0
IP
77th 4.33
ERA
91st 1.30
WHIP
113th 21.7%
K%
10th 8.5%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
96.6 11.6% 26.7% 53.2% 5.4% 5.13 2.60
28th 94.3
FB MPH
91st 11.6%
SwStr%
132nd 27.7%
CSW%
26th 50.1%
Str-ICR
130th 4.9%
MTK%
20th 4.98
PLV
19th 3.29
PLA
The List
Rank
40th

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George Kirby Overview

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team G GS IP W-L QS ERA WHIP xERA FIP xFIP PLA K% BB% H/9 HR/9 BABIP HR/FB% LOB% ICR% GB% SwStr% CSW% IPR% PLV
2022 SEA 25 25 130.0 8-5 11 3.39 1.21 3.22 2.99 3.26 2.99 24.5% 4.1% 9.3 0.90 .332 14.6% 75.1% 36.9% 47.8% 11.1% 27.3% 0.56 5.11
2023 SEA 31 31 190.2 13-10 20 3.35 1.04 3.40 3.34 3.50 2.67 22.7% 2.5% 8.4 1.04 .293 17.7% 75.1% 38.2% 46.0% 12.5% 28.8% 0.60 5.18
2024 SEA 33 33 191.0 14-11 20 3.53 1.07 3.08 3.26 3.66 2.73 23.0% 3.0% 8.5 1.04 .292 14.5% 71.6% 35.2% 43.0% 12.8% 27.9% 0.54 5.15
2025 SEA 23 23 126.0 10-8 12 4.21 1.19 3.75 3.37 3.25 2.82 26.1% 5.5% 8.6 1.07 .315 20.3% 71.3% 43.0% 48.6% 13.1% 29.2% 0.55 5.15
2026 SEA 22 22 132.0 8-9 13 3.68 1.27 3.92 3.67 3.80 2.60 20.6% 5.2% 9.5 1.09 .323 17.2% 76.0% 35.5% 48.5% 11.6% 26.7% 0.48 5.13
SP MLB Percentile 60 73 90 75-5 91 62 54 60 71 73 91 44 93 19 60 12 61 65 79 84 53 33 56 90
SP MLB AVG 18 16 91.0 5-5 6 4.33 1.30 4.35 4.28 4.21 3.29 21.7% 8.5% 8.5 1.25 .287 19.1% 72.8% 38.5% 42.9% 11.6% 27.7% 0.47 4.98
Career 134 134 769.2 53-43 76 3.60 1.14 3.44 3.32 3.51 2.75 23.3% 3.8% 8.8 1.03 .308 16.5% 73.8% 37.5% 46.4% 12.3% 28.0% 0.55 5.15

George Kirby Repertoire

2022 2023 2024 2025 2026 All
Hide MLB Percentile | Hide MLB Average

George Kirby Game Log

George Kirby Standard

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team G GS IP W-L QS Sv Hld P Strikes Balls TBF H 1B 2B 3B HR K BB HB WP
2022 SEA 25 25 130.0 8-5 11 0 0 2,092 1,440 652 542 135 97 23 2 13 133 22 5 4
2023 SEA 31 31 190.2 13-10 20 0 0 2,825 2,002 823 757 179 122 28 7 22 172 19 6 1
2024 SEA 33 33 191.0 14-11 20 0 0 2,967 2,030 936 778 181 118 38 3 22 179 23 7 5
2025 SEA 23 23 126.0 10-8 12 0 0 2,086 1,360 727 524 121 85 20 1 15 137 29 7 3
2026 SEA 22 22 132.0 8-9 13 0 0 2,007 1,352 656 543 140 95 27 2 16 112 28 3 1
SP MLB Percentile 60 73 90 75-5 91 0 0 78 86 32 88 2 2 7 15 22 77 60 47 61
SP MLB AVG 18 16 91.0 5-5 6 0 0 1,500 960 540 387 85 55 16 1 12 85 31 4 2
Career 134 134 769.2 53-43 76 0 0 11,977 8,184 3,794 3,144 756 517 136 15 88 733 121 28 14

George Kirby Advanced

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2022 SEA 24.5% 4.1% .264 .393 .692 .302 .332 .354 .233 .283 .284 .352 88.7 87.9 11.1 3.22
2023 SEA 22.7% 2.5% .246 .395 .665 .285 .293 .321 .241 .281 .283 .348 89.0 89.2 12.2 3.40
2024 SEA 23.0% 3.0% .245 .393 .665 .287 .292 .320 .224 .273 .259 .335 88.4 87.9 14.3 3.08
2025 SEA 26.1% 5.5% .252 .392 .692 .300 .315 .345 .255 .303 .323 .382 90.3 88.9 11.4 3.75
2026 SEA 20.6% 5.2% .274 .429 .744 .324 .323 .350 .252 .311 .291 .368 89.4 89.8 12.2 3.92
SP MLB Percentile 44 93 15 35 42 43 12 17 39 60 40 59 25 51 68 60
SP MLB AVG 21.7% 8.5% .245 .409 .725 .318 .287 .320 .246 .324 .285 .374 88.5 89.9 13.9 4.35
Career 23.3% 3.8% .255 .399 .687 .300 .308 .335 .239 .291 .285 .357 89.1 88.7 12.4 3.44

George Kirby 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%
2022 SEA46.3% (95.3)11.3% (94.7)-21.1% (87.1)-13.3% (80.8)8.0% (86.0)-- 57.6% 42.4%
2023 SEA39.4% (96.1)21.6% (95.8)-19.8% (86.2)-11.4% (81.8)1.8% (86.6)6.1% (84.8)0.0% (73.2) 60.9% 39.1%
2024 SEA34.0% (96.0)23.6% (96.0)0.4% (92.3)23.7% (87.2)-8.1% (83.3)-10.2% (86.0)0.0% (73.9) 57.6% 42.4%
2025 SEA29.0% (96.2)26.6% (96.2)-27.5% (87.2)-12.0% (84.3)2.2% (87.8)2.7% (86.0)- 55.6% 44.4%
2026 SEA29.2% (96.6)21.2% (96.9)3.2% (93.2)0.5% (86.0)29.1% (87.3)9.3% (83.9)7.3% (88.7)0.3% (87.3)- 50.3% 49.7%
SP MLB Percentile 40 (86) 60 (95) 4 (94) 0 (42) 84 (96) 32 (88) 15 (77) 0 (64) - 68.5% 30.5%
SP MLB AVG 33.7% (94.3) 19.7% (93.7) 16.7% (89.3) 17.9% (86.1) 16.7% (82.2) 14.1% (80.0) 16.8% (86.2) 17.6% (86.4) 28.9% (80.7) 46.6% 53.3%
Career35.7% (96.0)21.1% (96.0)0.6% (93.0)19.1% (86.9)4.9% (87.3)10.7% (82.7)3.4% (87.2)4.5% (85.6)0.0% (73.6) 56.8% 43.2%

George Kirby Pitch › Results

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team FF CSW% SI CSW% FC CSW% SL CSW% ST CSW% CB CSW% CH CSW% FS CSW% KN CSW% Fastball CSW% Secondary CSW%
2022 SEA31.0% (155)28.4% (11)-21.7% (39)-28.4% (16)18.0% (12)-- 30.5% 23.1%
2023 SEA28.2% (198)26.3% (43)-33.3% (54)-32.3% (24)15.7% (3)24.4% (30)100.0% (1) 27.5% 30.9%
2024 SEA28.3% (178)25.3% (41)9.1% (0)34.1% (82)-26.6% (34)-19.5% (45)0.0% (0) 27.1% 28.9%
2025 SEA26.1% (102)27.0% (29)-36.3% (78)-29.9% (51)17.4% (2)19.6% (11)- 26.6% 32.6%
2026 SEA23.4% (81)27.8% (24)21.9% (8)40.0% (2)31.0% (78)25.7% (21)22.4% (19)0.0% (0)- 25.2% 28.1%
SP MLB Percentile 14 (83) 54 (76) 14 (22) 98 (3) 65 (98) 24 (59) 46 (43) 0 (0) - 21.5% 52.0%
SP MLB AVG 27.1% (49) 26.6% (15) 27.3% (21) 28.4% (33) 27.8% (24) 29.6% (23) 23.2% (32) 22.6% (39) 24.7% (16) 27.3% 27.9%
Career27.9% (714)26.6% (148)20.0% (8)32.1% (255)31.0% (78)28.9% (146)19.2% (36)20.9% (86)50.0% (1) 27.4% 28.8%

George Kirby Batted Ball › Contact

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR%
2022 SEA 47.8% 20.8% 23.5% 7.9% 32.5% 36.4% 34.8% 28.8% 23.2% 62.9% 23.5% 5.5% 8.2% 36.9%
2023 SEA 46.0% 20.6% 22.2% 11.3% 32.7% 37.9% 32.1% 30.0% 22.2% 61.6% 25.9% 4.8% 7.5% 38.2%
2024 SEA 43.0% 19.4% 26.8% 10.8% 31.9% 36.7% 31.7% 31.6% 21.4% 64.8% 22.0% 5.5% 7.8% 35.2%
2025 SEA 48.6% 22.9% 21.1% 7.4% 36.9% 34.8% 37.9% 27.4% 19.1% 56.9% 29.1% 6.3% 7.7% 43.0%
2026 SEA 48.5% 18.1% 23.4% 10.1% 33.4% 35.0% 38.0% 27.0% 20.8% 64.4% 24.9% 4.3% 6.5% 35.5%
SP MLB Percentile 84 92 34 52 76 5 93 76 89 79 47 86 71 79
SP MLB AVG 42.9% 22.3% 24.6% 10.2% 35.8% 42.5% 33.2% 24.4% 18.3% 61.3% 24.8% 6.2% 7.7% 38.5%
Career 46.4% 20.2% 23.6% 9.8% 33.2% 36.3% 34.4% 29.2% 21.4% 62.3% 24.9% 5.2% 7.5% 37.5%

George Kirby Batted Ball › Outcomes

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR% IPA%
2022 SEA .264 .302 .332 .354 .233 .283 .284 .352 88.7 87.9 11.1 14.6% 36.9% 26.0%
2023 SEA .246 .285 .293 .321 .241 .281 .283 .348 89.0 89.2 12.2 17.7% 38.2% 28.3%
2024 SEA .245 .287 .292 .320 .224 .273 .259 .335 88.4 87.9 14.3 14.5% 35.2% 25.7%
2025 SEA .252 .300 .315 .345 .255 .303 .323 .382 90.3 88.9 11.4 20.3% 43.0% 28.8%
2026 SEA .274 .324 .323 .350 .252 .311 .291 .368 89.4 89.8 12.2 17.2% 35.5% 26.2%
SP MLB Percentile 15 43 12 17 39 60 40 59 25 51 68 61 79 52
SP MLB AVG .245 .318 .287 .320 .246 .324 .285 .374 88.5 89.9 13.9 19.1% 38.5% 26.5%
Career .255 .300 .308 .335 .239 .291 .285 .357 89.1 88.7 12.4 16.5% 37.5% 27.0%

George Kirby 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
2022 SEA 50.5% 68.8% 52.6% 31.7% 21.2% 23.2% 78.8% 82.4% 70.4% 16.2% 11.1% 27.3% 18.3% 62.4% 0.56 55.4%
2023 SEA 52.4% 70.9% 54.5% 36.3% 22.9% 22.2% 77.1% 84.0% 62.2% 16.4% 12.5% 28.8% 19.8% 64.5% 0.60 55.7%
2024 SEA 48.2% 68.4% 53.4% 34.8% 24.0% 21.4% 76.0% 83.8% 60.7% 15.1% 12.8% 27.9% 19.1% 62.3% 0.54 54.9%
2025 SEA 46.2% 65.2% 49.0% 32.3% 26.7% 19.1% 73.3% 84.9% 52.2% 16.2% 13.1% 29.2% 16.8% 59.4% 0.55 50.7%
2026 SEA 46.0% 67.4% 52.3% 37.6% 22.2% 20.8% 77.8% 88.2% 61.5% 15.0% 11.6% 26.7% 19.9% 60.4% 0.48 53.2%
SP MLB Percentile 67 92 94 96 33 89 33 21 34 24 53 33 85 81 56 86
SP MLB AVG 44.9% 63.8% 47.7% 31.7% 24.3% 18.3% 75.7% 85.1% 59.4% 16.1% 11.6% 27.7% 17.8% 58.1% 0.47 50.1%
Career 48.9% 68.3% 52.6% 34.7% 23.4% 21.4% 76.6% 84.4% 61.3% 15.8% 12.3% 28.0% 18.9% 62.0% 0.55 54.2%

George Kirby Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2022 SEA 50.5% 27.7% 28.3% 44.0% 43.0% 26.4% 30.5% 28.9% 42.8% 7.7%
2023 SEA 52.4% 30.5% 29.3% 40.1% 43.8% 25.8% 30.4% 28.2% 42.4% 7.8%
2024 SEA 48.2% 30.4% 27.5% 42.1% 41.3% 24.8% 33.9% 26.5% 46.0% 7.1%
2025 SEA 46.2% 27.7% 27.5% 44.9% 39.5% 21.5% 39.0% 31.3% 41.3% 6.5%
2026 SEA 46.0% 26.9% 30.8% 42.3% 42.1% 21.4% 36.5% 29.0% 40.1% 7.1%
SP MLB Percentile 67 5 8 84 87 74 20 49 25 71
SP MLB AVG 44.9% 36.0% 27.5% 36.5% 35.2% 22.8% 41.9% 29.0% 43.5% 6.6%
Career 48.9% 28.9% 28.6% 42.5% 42.0% 24.2% 33.8% 28.6% 42.8% 7.3%

George Kirby Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2022 SEA 58.0% 9.2% 32.7% 15.7% 67.6% 55.6% 21.3% 24.7% 19.4%
2023 SEA 60.2% 6.8% 33.1% 17.1% 69.4% 57.3% 22.8% 27.0% 18.4%
2024 SEA 58.8% 8.0% 33.3% 17.0% 66.0% 52.1% 20.5% 26.1% 18.0%
2025 SEA 58.6% 9.5% 32.0% 14.9% 64.3% 53.9% 21.5% 26.8% 20.5%
2026 SEA 60.8% 9.1% 30.2% 17.6% 64.7% 52.4% 20.5% 29.0% 18.5%
SP MLB Percentile 85 93 66 88 79 78 44 76 45
SP MLB AVG 58.8% 11.9% 29.4% 15.1% 61.3% 49.6% 20.7% 26.7% 19.0%
Career 59.3% 8.4% 32.4% 16.5% 66.6% 54.3% 21.3% 26.6% 18.9%

George Kirby PLV

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2022 SEA 2,092 5.11 47.9% 21.0% 31.1% 16.8% 7.2% 8.9 +14 2.99
2023 SEA 2,825 5.18 49.3% 19.2% 31.5% 17.8% 8.2% -2.0 +11 2.67
2024 SEA 2,967 5.15 47.8% 18.8% 33.4% 14.4% 6.2% 4.3 +21 2.73
2025 SEA 2,086 5.15 49.8% 16.4% 33.8% 16.0% 5.2% 21.8 +27 2.82
2026 SEA 2,007 5.13 49.0% 16.8% 34.2% 14.7% 5.4% 18.4 +27 2.60
SP MLB Percentile 78 90 86 28 75 75 34 12 2 91
SP MLB AVG 1,500 4.98 46.0% 17.9% 36.1% 9.8% 4.9% 4.4 +1 3.29
Career 11,977 5.15 48.7% 18.5% 32.8% 16.0% 6.6% 51.5 +99 2.75
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