2025 Stats
W-L
4-5
ERA
3.99
WHIP
1.26
K
59
SV
0
Rest-of-Season Projections
Signed a one-year contract with the Padres in March of 2025. Traded to the Royals in July of 2025.
Returns to Triple-A
The Royals optioned Kolek to Triple-A Omaha on Sunday.
Analysis
The right-hander was called up for a spot start Saturday and allowed just one run over six innings in a no-decision against Detroit, but he won't stick on the big-league roster with Michael Wacha returning from the paternity list Sunday. Kolek could rejoin the big club down the stretch, but he may have a difficult time finding a spot in the Kansas City rotation while all of Wacha, Seth Lugo, Michael Lorenzen, Noah Cameron and Ryan Bergert are available.
The right-hander was called up for a spot start Saturday and allowed just one run over six innings in a no-decision against Detroit, but he won't stick on the big-league roster with Michael Wacha returning from the paternity list Sunday. Kolek could rejoin the big club down the stretch, but he may have a difficult time finding a spot in the Kansas City rotation while all of Wacha, Seth Lugo, Michael Lorenzen, Noah Cameron and Ryan Bergert are available.
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
87
Last 10 Games
85
Last 5 Games
81
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
-7%
BAA vs LHP
2025
-3%
BAA vs RHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .264 | 52 | 24 | 65 | 7 |
| Since 2023vs Right | .283 | 46 | 14 | 76 | 5 |
| 2025vs Left | .261 | 37 | 19 | 42 | 7 |
| 2025vs Right | .252 | 22 | 7 | 40 | 1 |
| 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 |
Home/Away Pitching Splits
Since 2023
-39%
ERA on Road
2025
-68%
ERA on Road
| ERA | WHIP | IP | K/9 | BB/9 | |
|---|---|---|---|---|---|
| Since 2023Home | 5.77 | 1.40 | 53.0 | 7.3 | 1.9 |
| Since 2023Away | 3.52 | 1.32 | 79.1 | 6.2 | 3.1 |
| 2025Home | 7.62 | 1.42 | 26.0 | 5.9 | 1.7 |
| 2025Away | 2.41 | 1.19 | 59.2 | 6.3 | 3.2 |
| 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 |
Minor League Left/Right Pitching Splits (AAA)
Since 2023
-9%
BAA vs LHP
2025
-14%
BAA vs LHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .262 | 45 | 16 | 45 | 1 |
| Since 2023vs Right | .289 | 61 | 29 | 74 | 8 |
| 2025vs Left | .311 | 22 | 5 | 28 | 1 |
| 2025vs Right | .360 | 19 | 10 | 40 | 5 |
| 2024vs Left | 0 | 0 | 0 | 0 | 0 |
| 2024vs Right | 0 | 0 | 0 | 0 | 0 |
| 2023vs Left | .207 | 23 | 11 | 17 | 0 |
| 2023vs Right | .234 | 42 | 19 | 34 | 3 |
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
2.27K/9
6.2BB/9
2.7HR/9
0.8Fastball
93.8 mphERA
3.99WHIP
1.26BABIP
.288GB/FB
1.99Left On Base
69.2%Exit Velocity
83.9 mphBarrels/BBE
3.1%Spin Rate
2241 rpmBalls Hit 95+ MPH
29.4%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
Shines in Royals debut
Kolek allowed one run on four hits and no walks while striking out three batters over six innings in a no-decision against Detroit on Saturday.
Analysis
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Starting Saturday vs. Tigers
Kolek is slated to start Saturday's game against the Tigers in Kansas City, Jaylon T. Thompson of The Kansas City Star reports.
Analysis
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Set for Royals debut
The Royals recalled Kolek from Triple-A Omaha on Friday.
Analysis
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Dealt to Royals
The Royals acquired Kolek and right-hander Ryan Bergert from the Padres on Thursday in exchange for catcher Freddy Fermin, Jeff Passan of ESPN.com reports.
Analysis
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Sent down to El Paso
The Padres optioned Kolek to Triple-A El Paso on Tuesday.
Analysis
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Latest Fantasy Rumors
Could remain in rotation
Kolek is likely to stick in the Padres rotation for the near future after Michael King was placed on the injured list Sunday with right shoulder inflammation.
Analysis
Kolek figures to have a solidified spot in the rotation with King on the shelf. It was possible Kolek was going to be the odd man out sooner than later due to Yu Darvish being on a rehab assignment as he works his way back from elbow inflammation. Now with King injured, Kolek should stick around for a little while longer. Kolek has pitched to a 2.84 ERA, 1.26 WHIP and 21:8 K:BB in 25.1 innings thus far.
Kolek figures to have a solidified spot in the rotation with King on the shelf. It was possible Kolek was going to be the odd man out sooner than later due to Yu Darvish being on a rehab assignment as he works his way back from elbow inflammation. Now with King injured, Kolek should stick around for a little while longer. Kolek has pitched to a 2.84 ERA, 1.26 WHIP and 21:8 K:BB in 25.1 innings thus far.