Armside

George Kirby

SEA · RHP · SP · Age 28

Season
2026
G/GS
30/30
IP
174.2
BF
741
xwOBA
.315
K%
20.0%
BB%
6.3%
CSW%
26.5%
Whiff%
22.5%
Barrel%
6.6%
FB Velo
96.8

Percentile profile, 2026 regular season.

George KirbyPercentile profile · 2026 regular seasonAmong qualified pitchers · red is better, blue is worsexwOBA44.315xBA17.263xSLG34.408Avg EV3089.4HardHit%3440.1%Barrel%676.6%K%3220.0%BB%876.3%Whiff%2722.5%Chase%8434.3%Armside · Data: MLB Advanced Media / Baseball Savant

Arsenal, 2026

Pitchⓘ#ⓘUsageⓘVeloⓘSpinⓘIVBⓘHBⓘWhiff%ⓘCSW%ⓘxwOBAⓘRVⓘRV/100ⓘ
4-Seam Fastball FF78428.4%96.7226413.7-9.123.4%24.1%.33010.1
Sweeper ST78128.3%87.52380-2.810.926.8%29.6%.28500.0
Sinker SI57620.9%96.923098.1-16.312.5%28.0%.29320.4
Curveball CU28110.2%84.12372-13.18.922.9%27.8%.320-7-2.4
Changeup CH1495.4%88.815934.7-14.626.9%20.8%.374-3-2.0
Cutter FC1164.2%92.923009.0-0.430.4%25.9%.38211.0
Split-Finger FS712.6%87.210590.7-10.322.9%15.5%.439-5-7.5

Pitch types with 25+ pitches; knuckle curves and slow curves shown as curveballs. Grey rates: under 405 pitches of the type (Savant’s qualifying line, 2.5 per team game).

Season by season

SeasonⓘTeamⓘAgeⓘGⓘGSⓘIPⓘBFⓘK%ⓘBB%ⓘK−BB%ⓘCSW%ⓘxwOBAⓘFB Veloⓘ
2022SEA242525130.054224.5%4.1%20.5%27.3%.28795.2
2023SEA253131190.275722.7%2.5%20.2%28.8%.30596.0
2024SEA263333191.077823.0%3.0%20.1%27.9%.29096.0
2025SEA272323126.052426.1%5.5%20.6%29.2%.30696.2
2026SEA283030174.274120.0%6.3%13.6%26.5%.31596.8
Career——142142812.1334223.0%4.2%18.8%27.9%.30196.1