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George Kirby
George Kirby
Seattle Mariners • Pitcher
Age 28 • 6' 4" • 215 lb
Bats: R • Throws: R
MLB Debut: 2022-05-08
Born: Rye , NY • USA
Draft: 2019
2026 Stats
W
5
L
4
ERA
3.54
WHIP
1.21
IP
68.2
SO
55
SV
0
HLD
0
G
11
GS
11
Career Stats
W
50
L
38
ERA
3.58
WHIP
1.12
IP
706.1
SO
676
SV
0
HLD
0
G
123
GS
123
Year-by-Year Pitching
Year Team GGSIP WLSVSO ERAWHIPAwards
2022 SEA 25 25 130.0 8 5 — 133 3.39 1.21
2023 SEA 31 31 190.2 13 10 — 172 3.35 1.04 AS
2024 SEA 33 33 191.0 14 11 — 179 3.53 1.07
2025 SEA 23 23 126.0 10 8 — 137 4.21 1.19
2026 SEA 11 11 68.2 5 4 — 55 3.54 1.21
Spring Training
Pitching
YearTeamGGSIPWLSVSOERAWHIP
2022 SEA 317.2 —1—12 7.041.43
2023 SEA 4411.2 21—15 2.311.03
2024 SEA 4414.2 1——15 5.521.30
2025 SEA 111.0 ———1 9.002.00
2026 SEA 4414.1 ———11 3.771.53
Postseason
Pitching
YearTeamGGSIPWLSVSOERAWHIP
2022 SEA 218.0 ——16 0.000.88
2025 SEA 4418.0 —1—21 6.001.39
Game Logs
Season selector loads one year at a time.
Pitching
Date Opponent IP H R ER BB SO HR
2026-05-23 @ KC 6.0 9 5 3 0 3 0
2026-05-17 vs SD 5.2 6 6 6 2 6 2
2026-05-11 @ HOU 5.0 7 1 1 2 7 0
2026-05-05 vs ATL 7.0 5 2 2 1 5 0
2026-04-29 @ MIN 5.2 8 2 2 2 5 0
2026-04-24 @ STL 6.0 5 2 2 1 2 0
2026-04-18 vs TEX 5.2 7 1 1 2 5 1
2026-04-13 vs HOU 7.2 7 2 2 1 6 0
2026-04-07 @ TEX 8.0 6 3 3 0 4 1
2026-04-01 vs NYY 6.0 5 4 4 3 6 1
2026-03-27 vs CLE 6.0 2 1 1 2 6 1
Transactions
Entire history • newest first.
2026-04-16
RHP George Kirby changed number to 68.
2026-04-15
RHP George Kirby changed number to 42.
2025-05-22
Seattle Mariners activated RHP George Kirby from the 15-day injured list.
2025-05-04
Seattle Mariners sent RHP George Kirby on a rehab assignment to Tacoma Rainiers.
2025-03-27
Seattle Mariners placed RHP George Kirby on the 15-day injured list retroactive to March 24, 2025. Right shoulder inflammation.
2023-07-10
RHP George Kirby assigned to American League All-Stars.
2022-07-26
Seattle Mariners recalled RHP George Kirby, and from Tacoma Rainiers.
2022-07-09
Seattle Mariners optioned RHP George Kirby to Tacoma Rainiers.
2022-05-08
Seattle Mariners selected the contract of RHP George Kirby from Arkansas Travelers.
2022-03-14
RHP George Kirby roster status changed by Seattle Mariners.
2022-03-14
Seattle Mariners invited non-roster RHP George Kirby to spring training.
2021-03-10
P George Kirby assigned to Seattle Mariners .
2021-03-10
P George Kirby assigned to Seattle Mariners .
2020-06-28
Seattle Mariners invited non-roster RHP George Kirby to spring training.
2019-06-12
RHP George Kirby assigned to Seattle Mariners.
Scouting Report
Statcast-style percentiles • Basenerd theme
Season 2026
Ready
Basic Line
Season / Game
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Pitch Arsenal
Usage • Velo • Break • Spin • xwOBA
Pitch N Use% Velo HB IVB Spin xwOBA Whiff% Zone% Chase% BNStuff+ BNCtrl+
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Notes
Primary pitch summary
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Movement Profile (Induced Break)
Pitcher's View: HB vs Rise / Drop (in)
Circles: 12/18/24 in • Dots = pitch types (size ~ pitch count)
Pitch Location Heatmaps
KDE-style blur • fixed zone • catcher POV
vs. LHH
vs. RHH
Zone: left -0.7083 / right 0.7083 • bot 1.595 / top 3.394 • Domain: X [-2,2], Z [0,5]
Statcast Game Log
Per-game pitch metrics from Statcast
Date Pitches Velo BNStuff+ BNCtrl+ Whiff% Zone% Chase% K% BB% xwOBA
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