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Pitch trajectory and Statcast data: Baseball Savant. Player metadata, schedule, and headshots: MLB Stats API and mlbstatic.com.

Stephen Kolek pitch tracking · pitchtracker

Outcome

Swinging strike
Called strike
Ball
Foul
In play

All pitches in 2026

Pitcher

Stephen Kolek pitch tracking

RHP · KC · debut 2024

Kansas City Royals

Season

Arsenal

Four-Seam94.1 mph29% (186)
Sinker93.6 mph23% (144)
Slider85.4 mph15% (94)
Changeup87.0 mph13% (84)
Cutter90.0 mph12% (75)
Sweeper79.7 mph9% (57)

All pitches in 2026

Pitch type

Outcome

At-bat result

Batter side

Game

Rendering 640 pitches

500 recent · 140 historical as paths