BIGLEAGUE

Kansas City Royals · Pitcher · #32

Stephen Kolek

Age 296' 3" · 210lbBats R · Throws RDebut 2024From Houston

ERA

4.50

W-L

4-3

K

34

WHIP

1.24

WAR

0.5

FIP

4.53

League Percentile

2026 season · percentile vs 194 starters with 20+ IP
the entire league54starting pitchers194
ERA
41
4.50
WHIP
61
1.24
Strikeouts
12
34
K/9
5
5.67
Wins
36
4
Bottom of leagueAverage (50)Top of league

starting pitchers · by ERA

Top 59%

Stephen Kolek's ERA (4.50) ranks below average among 194 starters with 20+ IP. The number on each bar is a percentile (higher is better); use the tabs to change the comparison pool.

PITCHING

Season · Career
CategoryGamesERAWinsLossesSavesInningsStrikeoutsWalksWHIP
2026 Season104.5043054.034121.24
Career714.1312100213.1150551.25

Hover over a stat for its definition.

ARSENAL

Pitch arsenal · 2026 usage and average velocity
Four-Seam28.3%avg 152 km/h
Sinker21.7%avg 151 km/h
Slider16.4%avg 138 km/h
Cutter12.3%avg 145 km/h
Changeup11.9%avg 140 km/h
Sweeper9.3%avg 129 km/h

ADVANCED

Advanced metrics · 2026 season

BABIP

.280

K/9

5.67

BB/9

2.00

HR/9

1.33

Quality starts

5

Whiff%

19.8%

GAME LOG

Last 10 games · includes team result
DateOppInningsHitsERWalksStrikeoutsTeam
07.02vs TB2.04310L
06.21vs STL1.29910L
06.14vs HOU7.15014W
06.09vs TEX5.08113W
06.03@ CIN7.06228W
05.29@ TEX5.06415L
05.23vs SEA9.04012W
05.17@ STL6.14013W
05.12@ CWS4.25536L
05.05vs CLE6.04303W

SPLITS

Situational splits (2026)

Home

Opp AVG.283
IP31.0
K12
WHIP1.26

Away

Opp AVG.233
IP23.0
K22
WHIP1.22

vs LHP

Opp AVG.273
IP30.0
K24
WHIP1.27

vs RHP

Opp AVG.247
IP23.2
K10
WHIP1.23

RISP

Opp AVG.300
IP10.0
K7
WHIP1.40

YEAR BY YEAR

Year-by-year · Career trends

ERALower is better

▲ Trending down year over year
ERA by yearFrom 5.21 in 2024 to 4.50 in 2026. Lower is better for this stat.2024 ERA: 5.215.2120242025 ERA: 3.513.5120252026 ERA: 4.504.502026
Show yearly figures
ERA year-by-year details
YearERA
20245.21
20253.51
20264.50

WHIPLower is better

▲ Trending down year over year
WHIP by yearFrom 1.52 in 2024 to 1.24 in 2026. Lower is better for this stat.2024 WHIP: 1.521.5220242025 WHIP: 1.141.1420252026 WHIP: 1.241.242026
Show yearly figures
WHIP year-by-year details
YearWHIP
20241.52
20251.14
20261.24

Strikeouts

▼ Trending down year over year
Strikeouts by yearFrom 39 in 2024 to 34 in 2026.2024 Strikeouts: 393920242025 Strikeouts: 777720252026 Strikeouts: 34342026
Show yearly figures
Strikeouts year-by-year details
YearStrikeouts
202439
202577
202634
YearTeamGamesERAWinsLossesSavesInningsStrikeoutsWalksWHIP
2024SD425.2130046.239121.52
2025SD144.1845079.256261.31
2025KC51.9112033.02150.76
2025—193.51570112.277311.14
2026KC104.5043054.034121.24