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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%
9-11 174.2 4.33 1.40 20.0% 6.3%
49th 7
W
19th 120.0
IP
115th 4.25
ERA
144th 1.29
WHIP
120th 21.7%
K%
32nd 8.4%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
96.7 11.7% 26.5% 51.8% 5.2% 5.12 2.74
26th 94.3
FB MPH
85th 11.6%
SwStr%
144th 27.8%
CSW%
58th 50.3%
Str-ICR
107th 4.9%
MTK%
22nd 4.98
PLV
24th 3.30
PLA
The List
Rank
65th

Articles

9/21/2026The List 9/21: Starting Pitcher Daily Rankings Cheat Sheet UPDATED 9/23Nick Pollack

9/17/2026Fantasy Baseball SP Roundup 9/16: The GoldLynchNick Pollack

9/15/2026The List 9/15: Starting Pitcher Daily Rankings Cheat Sheet (UPDATED 9/20)Nick Pollack

9/12/2026Fantasy Baseball SP Roundup 9/11: Stream It Or Bassitt OnJake Crumpler

9/6/2026Fantasy Baseball SP Roundup 9/5: Yusei You Want An EvolutionJake Crumpler

See More Articles
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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 30 30 174.2 9-11 15 4.33 1.40 4.33 3.90 3.88 2.74 20.0% 6.3% 10.2 1.13 .337 18.6% 73.1% 37.9% 47.2% 11.7% 26.5% 0.47 5.12
SP MLB Percentile 69 81 90 64-6 86 43 29 48 66 71 88 39 83 8 54 3 48 51 52 78 57 26 51 89
SP MLB AVG 24 21 120.0 7-7 8 4.25 1.29 4.34 4.24 4.20 3.30 21.7% 8.4% 8.4 1.22 .287 18.9% 73.0% 38.2% 43.2% 11.6% 27.8% 0.48 4.98
Career 142 142 812.1 54-45 78 3.74 1.17 3.55 3.39 3.54 2.77 23.0% 4.2% 9.0 1.04 .312 16.9% 73.2% 37.9% 46.2% 12.3% 27.9% 0.54 5.14

George Kirby Repertoire

2022 2023 2024 2025 2026 All
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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 30 30 174.2 9-11 15 0 0 2,758 1,840 922 741 197 133 39 3 22 148 47 3 1
SP MLB Percentile 69 81 90 64-6 86 0 0 84 91 26 93 1 1 2 13 15 78 30 62 72
SP MLB AVG 24 21 120.0 7-7 8 0 0 1,980 1,268 712 510 112 73 21 2 16 112 41 5 3
Career 142 142 812.1 54-45 78 0 0 12,728 8,672 4,060 3,342 813 555 148 16 94 769 140 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 20.0% 6.3% .287 .448 .782 .341 .337 .363 .265 .326 .305 .380 89.1 90.2 12.1 4.33
SP MLB Percentile 39 83 8 21 22 24 3 5 22 48 20 40 28 41 66 48
SP MLB AVG 21.7% 8.4% .245 .407 .722 .318 .287 .320 .246 .324 .285 .373 88.3 89.8 13.8 4.34
Career 23.0% 4.2% .259 .405 .699 .305 .312 .339 .243 .295 .288 .361 89.0 88.8 12.4 3.55

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 SEA28.5% (96.7)20.8% (96.9)4.2% (92.9)0.4% (86.0)28.0% (87.5)10.2% (84.1)5.4% (88.8)2.6% (87.2)- 49.3% 50.7%
SP MLB Percentile 35 (86) 61 (95) 7 (92) 0 (43) 84 (97) 38 (89) 9 (81) 4 (63) - 63.9% 35.2%
SP MLB AVG 34.2% (94.3) 19.7% (93.7) 16.6% (89.3) 17.5% (86.2) 16.5% (82.2) 13.9% (80.2) 16.5% (86.1) 16.8% (86.3) 30.1% (80.5) 46.5% 53.5%
Career35.2% (96.0)21.0% (96.1)1.0% (92.8)18.0% (86.9)6.1% (87.5)10.8% (82.8)3.2% (87.3)4.7% (85.8)0.0% (73.6) 56.2% 43.8%

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 SEA24.1% (110)28.0% (36)25.9% (17)40.0% (2)29.4% (101)27.8% (30)20.8% (18)15.5% (8)- 25.8% 27.3%
SP MLB Percentile 14 (83) 58 (84) 39 (43) 98 (2) 52 (97) 34 (67) 34 (32) 14 (23) - 26.7% 44.6%
SP MLB AVG 27.1% (64) 26.9% (20) 27.0% (25) 27.9% (41) 27.9% (30) 29.9% (30) 22.8% (41) 22.0% (48) 25.5% (21) 27.3% 27.9%
Career27.8% (743)26.7% (160)24.4% (17)32.1% (255)29.4% (101)29.1% (155)18.6% (35)20.5% (94)50.0% (1) 27.4% 28.6%

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 47.2% 20.2% 21.9% 10.7% 34.8% 36.9% 36.5% 26.6% 20.5% 61.8% 27.2% 5.0% 5.9% 37.9%
SP MLB Percentile 78 75 19 60 59 7 84 78 87 51 14 78 82 52
SP MLB AVG 43.2% 22.1% 24.6% 10.2% 35.6% 42.7% 33.1% 24.2% 18.4% 61.6% 24.8% 6.1% 7.5% 38.2%
Career 46.2% 20.6% 23.3% 9.9% 33.6% 36.7% 34.3% 29.0% 21.3% 61.9% 25.4% 5.3% 7.3% 37.9%

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 .287 .341 .337 .363 .265 .326 .305 .380 89.1 90.2 12.1 18.6% 37.9% 27.8%
SP MLB Percentile 8 24 3 5 22 48 20 40 28 41 66 48 52 32
SP MLB AVG .245 .318 .287 .320 .246 .324 .285 .373 88.3 89.8 13.8 18.9% 38.2% 26.3%
Career .259 .305 .312 .339 .243 .295 .288 .361 89.0 88.8 12.4 16.9% 37.9% 27.3%

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 45.3% 66.7% 51.9% 37.1% 22.5% 20.5% 77.5% 87.9% 61.3% 14.8% 11.7% 26.5% 19.7% 59.6% 0.47 51.8%
SP MLB Percentile 56 87 92 94 34 87 34 21 40 18 57 26 86 73 51 71
SP MLB AVG 44.8% 63.9% 47.7% 31.9% 24.3% 18.4% 75.7% 85.3% 59.4% 16.1% 11.6% 27.8% 17.7% 58.2% 0.48 50.3%
Career 48.5% 68.1% 52.5% 34.7% 23.4% 21.3% 76.6% 84.6% 61.2% 15.7% 12.3% 27.9% 18.9% 61.7% 0.54 53.8%

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 45.3% 27.8% 29.5% 42.7% 42.0% 20.8% 37.2% 30.8% 39.8% 6.6%
SP MLB Percentile 56 6 19 87 87 84 23 69 20 48
SP MLB AVG 44.8% 36.0% 27.4% 36.5% 35.3% 22.7% 42.0% 28.9% 43.6% 6.5%
Career 48.5% 29.0% 28.5% 42.6% 42.0% 23.9% 34.1% 29.0% 42.5% 7.2%

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 60.2% 9.2% 30.9% 17.7% 66.3% 53.2% 20.3% 28.4% 17.4%
SP MLB Percentile 81 94 70 90 90 85 36 68 39
SP MLB AVG 58.6% 11.9% 29.7% 15.1% 61.7% 50.1% 20.8% 26.9% 18.7%
Career 59.2% 8.4% 32.4% 16.6% 66.8% 54.3% 21.3% 26.7% 18.6%

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 2,758 5.12 48.8% 17.4% 33.8% 15.0% 5.2% 36.0 +42 2.74
SP MLB Percentile 84 89 86 37 82 82 42 4 1 88
SP MLB AVG 1,980 4.98 45.9% 17.9% 36.2% 9.8% 4.9% 5.8 +1 3.30
Career 12,728 5.14 48.7% 18.6% 32.7% 16.0% 6.4% 69.1 +114 2.77
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