2025 Stats
W-L
5-7
ERA
3.51
WHIP
1.14
K
77
SV
0
2026 Projections
2026 Fantasy Outlook
Kolek narrowly missed out on a rotation spot with the Padres last spring, beginning 2025 back at the Triple-A level. He got the call in early May for his first career big-league start, and Kolek proceeded to pitch 14.1 consecutive scoreless innings upon arrival, including nine in a historic shutout in Colorado. Not only was the 21-0 margin of victory one of the largest in a shutout in league history, Kolek became just second Padres pitcher to record a shutout in the 30-year history of Coors Field. The right-hander then posted a 5.10 ERA in his subsequent 12 starts before being shipped to Kansas City at the trade deadline. Kolek bookended his season with another strong stretch, posting a 1.91 ERA, 0.76 WHIP and 21:5 K:BB over 33 innings with the Royals. Even with that, Kolek, a groundballer with minimal swing-and-miss in his profile, won't be assured a starting role to begin 2026. Read Past Outlooks
Signed a one-year contract with the Padres in March of 2025. Traded to the Royals in July of 2025.
Adds another quality start to surge
Kolek (5-7) took the loss Wednesday against the Angels, allowing three runs (two earned) on five hits and three walks in six innings. He struck out two.
Analysis
Kolek submitted his sixth straight quality start and his ninth of the season through 19 outings. Although it may not have been enough to push the Royals into the postseason, the right-hander kicked things into a higher gear since landing in Kansas City, producing a 1.91 ERA, 0.76 WHIP and 21:5 K:BB across 33 innings. Kolek's surge to finish the campaign gives him a strong case for a rotation spot in 2026, and he may have worked his way into the club's long-term plans heading into the offseason.
Kolek submitted his sixth straight quality start and his ninth of the season through 19 outings. Although it may not have been enough to push the Royals into the postseason, the right-hander kicked things into a higher gear since landing in Kansas City, producing a 1.91 ERA, 0.76 WHIP and 21:5 K:BB across 33 innings. Kolek's surge to finish the campaign gives him a strong case for a rotation spot in 2026, and he may have worked his way into the club's long-term plans heading into the offseason.
Pitching Stats
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2025 MLB Game Log
2025
2024
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
89
Last 10 Games
87
Last 5 Games
91
How many pitches does Stephen Kolek generally throw?
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100
101-110
111-120
121+
What part of the game does Stephen Kolek generally pitch?
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
-12%
BAA vs LHP
2025
-5%
BAA vs LHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .240 | 63 | 28 | 74 | 7 | |||
| Since 2023vs Right | .273 | 53 | 15 | 83 | 6 | |||
| 2025vs Left | .229 | 48 | 23 | 51 | 7 | |||
| 2025vs Right | .242 | 29 | 8 | 47 | 2 | |||
| 2024vs Left | .271 | 15 | 5 | 23 | 0 | |||
| 2024vs Right | .327 | 24 | 7 | 36 | 4 | |||
| 2023vs Left | 0 | 0 | 0 | 0 | 0 | |||
| 2023vs Right | 0 | 0 | 0 | 0 | 0 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2023
-33%
ERA on Road
2025
-58%
ERA on Road
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 4.95 | 1.25 | 67.1 | 7.4 | 1.7 | ||||
| Since 2023Away | 3.33 | 1.26 | 92.0 | 6.0 | 2.9 | ||||
| 2025Home | 5.58 | 1.17 | 40.1 | 6.5 | 1.6 | ||||
| 2025Away | 2.36 | 1.13 | 72.1 | 6.0 | 3.0 | ||||
| 2024Home | 4.00 | 1.37 | 27.0 | 8.7 | 2.0 | ||||
| 2024Away | 6.86 | 1.73 | 19.2 | 5.9 | 2.7 | ||||
| 2023Home | 0 | 0 | 0 | 0 | 0 | ||||
| 2023Away | 0 | 0 | 0 | 0 | 0 | ||||
| More Splits→ | View More Split Stats | ||||||||
Stat Review
How does Stephen Kolek compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
2.48K/9
6.2BB/9
2.5HR/9
0.7Fastball
93.9 mphERA
3.51WHIP
1.14BABIP
.270GB/FB
1.98Left On Base
68.7%Exit Velocity
84.3 mphBarrels/BBE
3.4%Spin Rate
2223 rpmBalls Hit 95+ MPH
30.3%Swinging Strike
7.7%Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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More Fantasy News
Dominates despite loss
Kolek (5-6) took the loss Thursday against the Mariners, allowing two runs (one earned) on two hits and one walk while striking out eight over 7.1 innings.
Analysis
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Ready for another start Thursday
Kolek is slated to start Thursday's game versus the Mariners in Kansas City, Anne Rogers of MLB.com reports.
Analysis
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Encouraging start with new team
Kolek didn't factor into the decision Thursday against the Guardians, allowing one run on three hits and no walks in 6.2 innings. He struck out four.
Analysis
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Receiving another start
Kolek is slated to start Thursday's game against the Guardians at Progressive Field.
Analysis
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Goes seven strong in win
Kolek (5-5) earned the win against the Twins on Saturday, allowing two runs on six hits and one walk with four strikeouts over seven innings.
Analysis
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Latest Fantasy Rumors
Potential trade candidate
The Royals are receiving trade proposals centered around Kolek this offseason, according to Ken Rosenthal of The Athletic.
Analysis
Kolek is one of several Royals pitchers who have been attracting interest in the trade market this offseason. He made 19 starts in the 2025 regular season between the Padres and Royals, posting a 3.51 ERA and a 1.14 WHIP across 112.2 innings. He's expected to compete for a spot in the rotation in spring training.
Kolek is one of several Royals pitchers who have been attracting interest in the trade market this offseason. He made 19 starts in the 2025 regular season between the Padres and Royals, posting a 3.51 ERA and a 1.14 WHIP across 112.2 innings. He's expected to compete for a spot in the rotation in spring training.