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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

Needs more playing time to qualify
MLB Rank MLB Average
W-L IP ERA WHIP K% BB%
5-5 78.0 4.04 1.28 19.8% 5.6%
- 3
W
- 52.0
IP
- 4.42
ERA
- 1.32
WHIP
- 21.5%
K%
- 9.1%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
96.6 10.8% 26.3% 54.3% 4.5% 5.18 2.45
- 94.4
FB MPH
- 11.5%
SwStr%
- 27.7%
CSW%
- 49.7%
Str-ICR
- 4.8%
MTK%
- 4.98
PLV
- 3.25
PLA
The List
Rank
35th

Articles

6/8/2026Starting Pitcher Streamer Ranks Fantasy Baseball: 6/8 & 6/9 & 6/10Nick Pollack

6/7/2026Two-Start Starters: Week 11Will Orsland

6/4/2026Fantasy Baseball SP Roundup 6/3: Settling For The Sub-KirbsNick Pollack

6/3/2026Starting Pitcher Streamer Ranks Fantasy Baseball: 6/3 & 6/4 & 6/5Nick Pollack

6/3/2026Expected SP Schedules Weeks 10-11Michael Hanlon

See More Articles
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George Kirby Overview

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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 13 13 78.0 5-5 6 4.04 1.28 3.62 3.40 3.68 2.45 19.8% 5.6% 9.5 0.81 .323 14.3% 69.4% 31.8% 55.5% 10.8% 26.3% 0.46 5.18
SP MLB Percentile - - - --- - - - - - - - - - - - - - - - - - - - -
SP MLB AVG 10 9 52.0 3-3 3 4.42 1.32 4.39 4.37 4.25 3.25 21.5% 9.1% 8.4 1.23 .286 18.8% 72.6% 38.8% 43.1% 11.5% 27.7% 0.47 4.98
Career 125 125 715.2 50-39 69 3.63 1.13 3.37 3.27 3.47 2.75 23.4% 3.8% 8.8 0.99 .307 16.2% 72.8% 37.2% 47.0% 12.3% 28.1% 0.55 5.15

George Kirby Repertoire

2022 2023 2024 2025 2026 All
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George Kirby Game Log

George Kirby 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
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 13 13 78.0 5-5 6 0 0 1,195 801 395 323 82 62 13 0 7 64 18 2 0
SP MLB Percentile - - - --- - - - - - - - - - - - - - - - -
SP MLB AVG 10 9 52.0 3-3 3 0 0 851 542 309 219 48 31 9 1 7 48 19 2 1
Career 125 125 715.2 50-39 69 0 0 11,165 7,633 3,533 2,924 698 484 122 13 79 685 111 27 13

George Kirby Advanced

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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 19.8% 5.6% .272 .384 .700 .312 .323 .343 .251 .302 .294 .349 89.3 89.6 8.7 3.62
SP MLB Percentile - - - - - - - - - - - - - - - -
SP MLB AVG 21.5% 9.1% .245 .408 .728 .323 .286 .319 .245 .329 .283 .376 88.6 90.2 13.9 4.39
Career 23.4% 3.8% .253 .392 .678 .298 .307 .333 .238 .289 .285 .356 89.0 88.5 12.0 3.37

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 SEA 46.3% (95.3) 11.3% (94.7) - 21.1% (87.1) - 13.3% (80.8) 8.0% (86.0) - - 57.6% 42.4%
2023 SEA 39.4% (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 SEA 34.0% (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 SEA 29.0% (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 SEA 32.1% (96.6) 19.1% (96.9) 3.7% (93.0) 0.8% (86.0) 26.7% (87.0) 10.7% (83.8) 6.9% (88.7) - - 51.1% 48.9%
SP MLB Percentile - - - - - - - - - - -
SP MLB AVG 34.1% (94.4) 20.1% (93.7) 16.6% (89.2) 18.3% (86.1) 16.4% (82.5) 14.4% (80.1) 16.7% (86.4) 18.3% (86.6) 27.6% (80.5) 47.0% 53.0%
Career 36.5% (95.9) 20.9% (96.0) 0.5% (92.9) 20.5% (86.9) 2.9% (86.9) 10.9% (82.6) 3.1% (87.0) 4.7% (85.6) 0.0% (73.6) 57.4% 42.6%

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 SEA 31.0% (155) 28.4% (11) - 21.7% (39) - 28.4% (16) 18.0% (12) - - 30.5% 23.1%
2023 SEA 28.2% (198) 26.3% (43) - 33.3% (54) - 32.3% (24) 15.7% (3) 24.4% (30) 100.0% (1) 27.5% 30.9%
2024 SEA 28.3% (178) 25.3% (41) 9.1% (0) 34.1% (82) - 26.6% (34) - 19.5% (45) 0.0% (0) 27.1% 28.9%
2025 SEA 26.1% (102) 27.0% (29) - 36.3% (78) - 29.9% (51) 17.4% (2) 19.6% (11) - 26.6% 32.6%
2026 SEA 23.8% (50) 28.1% (13) 18.2% (3) 40.0% (2) 31.3% (43) 23.4% (10) 20.5% (8) - - 25.4% 27.2%
SP MLB Percentile - - - - - - - - - - -
SP MLB AVG 27.3% (28) 26.4% (9) 26.6% (13) 29.2% (20) 28.3% (16) 29.7% (15) 23.4% (19) 21.8% (24) 27.3% (11) 27.4% 27.9%
Career 28.2% (683) 26.5% (137) 16.4% (3) 32.1% (255) 31.3% (43) 28.9% (135) 18.2% (25) 21.1% (86) 50.0% (1) 27.6% 28.8%

George Kirby 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
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 55.5% 16.0% 20.6% 8.0% 30.3% 36.4% 34.7% 28.9% 20.8% 68.1% 24.4% 2.5% 5.0% 31.8%
SP MLB Percentile - - - - - - - - - - - - - -
SP MLB AVG 43.1% 22.1% 24.5% 10.3% 35.8% 42.5% 32.9% 24.5% 18.1% 61.0% 24.4% 6.4% 8.2% 38.8%
Career 47.0% 20.2% 23.3% 9.5% 32.9% 36.6% 33.8% 29.6% 21.5% 62.6% 24.8% 5.1% 7.5% 37.2%

George Kirby 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%
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 .272 .312 .323 .343 .251 .302 .294 .349 89.3 89.6 8.7 14.3% 31.8% 23.5%
SP MLB Percentile - - - - - - - - - - - - - -
SP MLB AVG .245 .323 .286 .319 .245 .329 .283 .376 88.6 90.2 13.9 18.8% 38.8% 26.5%
Career .253 .298 .307 .333 .238 .289 .285 .356 89.0 88.5 12.0 16.2% 37.2% 26.7%

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 45.5% 67.0% 51.5% 38.2% 20.9% 20.8% 79.1% 89.1% 64.3% 15.5% 10.8% 26.3% 20.0% 60.2% 0.46 54.3%
SP MLB Percentile - - - - - - - - - - - - - - - -
SP MLB AVG 44.9% 63.4% 47.2% 31.4% 24.2% 18.1% 75.8% 85.0% 60.0% 16.2% 11.5% 27.7% 17.7% 57.8% 0.47 49.7%
Career 49.0% 68.4% 52.5% 34.5% 23.3% 21.5% 76.7% 84.3% 61.6% 15.9% 12.3% 28.1% 18.8% 62.1% 0.55 54.4%

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 45.5% 27.2% 30.3% 42.5% 42.0% 21.4% 36.6% 28.7% 41.0% 6.9%
SP MLB Percentile - - - - - - - - - -
SP MLB AVG 44.9% 35.7% 27.5% 36.8% 35.7% 22.6% 41.7% 29.2% 43.3% 6.6%
Career 49.0% 29.1% 28.4% 42.5% 42.0% 24.4% 33.6% 28.5% 43.1% 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 61.3% 8.9% 30.0% 17.3% 63.8% 52.0% 21.3% 28.5% 17.9%
SP MLB Percentile - - - - - - - - -
SP MLB AVG 58.7% 12.2% 29.3% 15.1% 60.9% 49.5% 20.9% 26.7% 18.8%
Career 59.2% 8.3% 32.5% 16.4% 66.6% 54.4% 21.5% 26.4% 18.8%

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 1,195 5.18 50.4% 17.2% 32.4% 18.1% 4.5% 8.0 +15 2.45
SP MLB Percentile - - - - - - - - - -
SP MLB AVG 851 4.98 46.4% 17.4% 36.1% 10.3% 4.8% 2.6 +1 3.25
Career 11,165 5.15 48.9% 18.7% 32.4% 16.4% 6.5% 41.1 +87 2.75
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