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Starting Pitcher · Seattle Mariners

George Kirby

RHP · Throws Right · Age 28Starter
ERA
4.33
FIP
–
IP
174.2
W-L
9-11
WHIP
1.40
K%
20.0
BB%
6.3
GB%
–
K/9
7.6
HR/9
1.1
Drafted by the Seattle Mariners in 2019 (round 1). He made his MLB debut on May 8, 2022.Facts: MLB StatsAPI (people · transactions)
No scheduled start today. The model projection and lineup matchup appear on start days.

Four-Seam Fastball

FF · lead pitch

29% of pitches · .310 xwOBA allowed · 641 BIP · where it goes, what it costs

Pitcher Locations
where he throws it · catcher’s view
2%6%9%7%2%2%7%13%12%6%1%4%10%10%6%0%0%1%1%1%0%0%0%0%0%
Rare 0% · Common 10% · Very common 20%+
xwOBA Allowed
damage done by zone · all batters
.390.343.178.101.594.712.245.287.278.219–.395.366.340.343–.916.450.461.520–.699.241.170.699
Cold .200 · Avg .310 · Hot .500+
Expected Damage
locations × damage zones
.008.022.016.007.012.014.017.038.033.012–.017.038.033.021–.003.003.005.003–.001.000.001.001
Low risk · Average · High-risk zone
Four-Seam Fastball (29% usage) has allowed .310 xwOBA over 641 balls in play — his most-used pitch.

Arsenal

usage × whiff, ranked

7 pitch types · 7,899-pitch sample · 2026/2025/2024 blend, weighted 4/3/1

Four-Seam Fastball FF
29% usage · 23% whiff · .310 xwOBA · 96.8 mph
Sweeper ST
28% usage · 27% whiff · .281 xwOBA · 87.5 mph
Sinker SI
23% usage · 11% whiff · .319 xwOBA · 96.9 mph
Knuckle Curve KC
10% usage · 27% whiff · .285 xwOBA · 84.1 mph
Changeup CH
4% usage · 25% whiff · .341 xwOBA · 88.6 mph
Splitter FS
3% usage · 29% whiff · .384 xwOBA · 87.1 mph
Cutter FC
2% usage · 26% whiff · .359 xwOBA · 92.9 mph
Whiff% Trend
last 8 outings · by pitch · min 5 swings per point
01020304050608/148/208/258/319/59/119/169/23
Four-Seam FastballSweeperSinker
Hand Splits
K% + xwOBA allowed by batter side · 2026/2025/2024 blend, weighted 4/3/1
SplitK%xwOBASample
vs. LHB21.1 .317 1,013
vs. RHB23.3 .296 1,001
Live · client-hydrated

Market lines

current pick’em lines by book · updates through the day

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DFS picks

today’s picks for this pitcher, probability-sorted · graded nightly

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