BIGLEAGUE

Seattle Mariners · Pitcher · #68

George Kirby

Age 286' 4" · 215lbBats R · Throws RDebut 2022From Rye

ERA

4.33

W-L

9-11

K

148

WHIP

1.40

WAR

2.5

FIP

3.90

Awards

2 major honors

All-Star

2023

AL Rookie of the Month

2022

League Percentile

2026 season · percentile vs 46 qualified pitchers
ERA
18
4.33
WHIP
8
1.40
Strikeouts
22
148
K/9
27
7.63
Wins
22
9
Bottom of leagueAverage (50)Top of league

the entire league · by ERA

Top 82%

George Kirby's ERA (4.33) ranks below average among 46 qualified pitchers. The number on each bar is a percentile (higher is better); use the tabs to change the comparison pool.

PITCHING

Season · Career
CategoryGamesERAWinsLossesSavesInningsStrikeoutsWalksWHIP
2026 Season304.339110174.2148471.40
Career1423.7454450812.17691401.17

Hover over a stat for its definition.

ARSENAL

Pitch arsenal · 2026 usage and average velocity
Four-Seam28.4%avg 156 km/h
Sweeper28.3%avg 141 km/h
Sinker20.9%avg 156 km/h
Knuckle Curve10.2%avg 135 km/h
Changeup5.1%avg 143 km/h
Cutter4.2%avg 149 km/h
Splitter2.9%avg 140 km/h

ADVANCED

Advanced metrics · 2026 season

BABIP

.337

K/9

7.63

BB/9

2.42

HR/9

1.13

Quality starts

15

Whiff%

22.5%

GAME LOG

Last 10 games · includes team result
DateOppInningsHitsERWalksStrikeoutsTeam
09.23vs HOU5.06435W
09.16@ LAA4.15255W
09.11@ ATH6.09425L
09.05vs ATH6.27315L
08.31@ BOS5.07522L
08.25vs PHI7.26119W
08.20@ MIL3.19623L
08.14@ HOU4.28532L
08.08vs TB5.04122L
08.02vs MIN7.05013W

SPLITS

Situational splits (2026)

Home

Opp AVG.249
IP98.2
K85
WHIP1.18

Away

Opp AVG.331
IP76.0
K63
WHIP1.68

vs LHP

Opp AVG.283
IP90.0
K70
WHIP1.47

vs RHP

Opp AVG.290
IP83.2
K78
WHIP1.34

RISP

Opp AVG.320
IP38.1
K34
WHIP1.57

YEAR BY YEAR

Year-by-year · Career trends

ERALower is better

▲ Trending down year over year
ERA by yearFrom 3.39 in 2022 to 4.33 in 2026. Lower is better for this stat.2022 ERA: 3.393.3920222023 ERA: 3.353.3520232024 ERA: 3.5320242025 ERA: 4.2120252026 ERA: 4.334.332026
Show yearly figures
ERA year-by-year details
YearERA
20223.39
20233.35
20243.53
20254.21
20264.33

WHIPLower is better

▲ Trending down year over year
WHIP by yearFrom 1.21 in 2022 to 1.40 in 2026. Lower is better for this stat.2022 WHIP: 1.211.2120222023 WHIP: 1.041.0420232024 WHIP: 1.0720242025 WHIP: 1.1920252026 WHIP: 1.401.402026
Show yearly figures
WHIP year-by-year details
YearWHIP
20221.21
20231.04
20241.07
20251.19
20261.40

Strikeouts

▲ Trending up year over year
Strikeouts by yearFrom 133 in 2022 to 148 in 2026.2022 Strikeouts: 13313320222023 Strikeouts: 17220232024 Strikeouts: 17917920242025 Strikeouts: 13720252026 Strikeouts: 1481482026
Show yearly figures
Strikeouts year-by-year details
YearStrikeouts
2022133
2023172
2024179
2025137
2026148
YearTeamGamesERAWinsLossesSavesInningsStrikeoutsWalksWHIP
2022SEA253.39850130.0133221.21
2023SEA313.3513100190.2172191.04
2024SEA333.5314110191.0179231.07
2025SEA234.211080126.0137291.19
2026SEA304.339110174.2148471.40