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Stephen Kolek

Pitcher · Kansas City Royals. 2026 season stats with ranks among qualified players.

Pitching, 2026

Stephen Kolek posted a 4.50 ERA and a 4.54 FIP with a 15.1% strikeout rate over 54.0 innings in 2026.

Stat	2026	Percentile
Innings pitched	54.0	–
Starts	10	–
ERA	4.50	–
FIP	4.54	–
xFIP	4.26	–
Strikeout %	15.1%	–
Walk %	5.3%	–
K-BB%	9.8%	–
Home runs per 9	1.33	–
Whiff %	18.1%	–
Fastball velocity	94.0	–

Not enough innings in 2026 to compare.

Recent seasons

Season	IP	ERA	FIP	K%	BB%
2026	54.0	4.50	4.54	15.1%	5.3%
2025	112.7	3.51	3.82	16.7%	6.7%
2024	46.7	5.21	3.57	18.5%	5.7%

Kansas City Royals teammates

Bobby Witt Jr.
Salvador Perez
Carter Jensen
Jonathan India
Jac Caglianone
Isaac Collins
Vinnie Pasquantino
Michael Massey

About these numbers

Season totals and rates from every regular-season game. wRC+ is runs created adjusted for park and league (100 is average); FIP and xFIP estimate a pitcher's run prevention from strikeouts, walks and home runs; K-BB% is strikeout rate minus walk rate.

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