Stephen Kolek stats
Last played for the Kansas City Royals, 2026
Starting Pitcher · #32
Age 29 · 6' 3"
Compare with…OutRight Elbow · due back the 2028 season
Bio
- Age
- 29 yearsApr 18, 1997
- Height
- 6' 3"
Stephen Kolek played 3 MLB seasons, 2024 to 2026.
Stats
Standard
Career regular season
- GP
- 71
- W
- 12
- L
- 10
- ERA
- 4.13
- IP
- 213.1
- K
- 150
- BB
- 55
- WHIP
- 1.25
Ranked among MLB players who qualify (W, IP, K: 10+ games; ERA, WHIP: 100+ IP) that season; only the top 50 are shown. How each stat qualifies: glossary.
| GP: Games the player appeared in, however briefly. | W: Games in which this pitcher was credited with the win. | L: Games in which this pitcher was charged with the loss. | ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent. | IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs. | K: Batters this pitcher struck out. | BB: Times the batter reached first base on four balls. | WHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite. | ||
|---|---|---|---|---|---|---|---|---|---|
| 2024 | SD | 42 | 3 | 0, led the MLB | 5.21 | 46.2 | 39 | 12 | 1.52 |
| 2025 |  SD/KC | 19 | 5 | 7 | 3.51 | 112.2 | 77 | 31 | 1.14 |
| 2026 | KC | 10 | 4 | 3 | 4.50 | 54.0 | 34 | 12 | 1.24 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP
Bold marks the best figure in the MLB that season, among players with at least 30 games.
Expanded
Career regular season
- QS
- 14
- CG
- 2
- SHO
- 2
- K/9
- 6.3
- GB
- 348
- FB
- 330
- G/F
- 1.10
- WP
- 4
Ranked among MLB players who qualify (QS, CG, SHO: 10+ GS; K/9: 100+ IP; G/F: 50+ IP) that season; only the top 50 are shown. How each stat qualifies: glossary.
| QS: Quality starts: six innings or more with no more than three earned runs. | CG: Complete games, pitched from the first out to the last. | SHO: Shutouts — complete games with no run allowed. | K/9: Strikeouts for every nine innings pitched. | GB: Ground balls hit against this pitcher. | FB: Fly balls hit against this pitcher. | G/F: Ground balls for every fly ball hit against this pitcher. | WP: Wild pitches — throws the catcher had no chance to stop. | ||
|---|---|---|---|---|---|---|---|---|---|
| 2024 | SD | 0 | 0 | 0 | 7.5 | 88 | 68 | 1.3 | 2 |
| 2025 | SD/KC | 9 | 1 | 1, led the MLB | 6.2 | 179 | 167 | 1.1 | 0 |
| 2026 | KC | 5 | 1, led the MLB | 1, led the MLB | 5.7 | 81 | 95 | 0.9 | 2 |
What the columns mean: QS · CG · SHO · K/9 · G/F · WP
Bold marks the best figure in the MLB that season, among players with at least 30 games.
Bio
- Age
- 29 yearsApr 18, 1997
- Height
- 6' 3"
- Debut
- 2024
- Birthplace
- Houston, TX
Latest performance
Stephen Kolek
Jul 02 · vs TB · L 5-2
- IP
- 2.0
- H
- 4
- R
- 3
- ER
- 3
- BB
- 1
- K
- 0
- HR
- 0
- ERA
- 4.50
Games
All games| Date | Opponent | IP | H | R | ER | K |
|---|---|---|---|---|---|---|
| Thu, Jul 02 | vs TBL 5-2 | 2 | 4 | 3 | 3 | 0 |
| Sun, Jun 21 | vs STLL 12-10 | 1.2 | 9 | 9 | 9 | 0 |
| Sun, Jun 14 | vs HOUW 4-0 | 7.1 | 5 | 0 | 0 | 4 |
| Tue, Jun 09 | vs TEXW 5-3 | 5 | 8 | 2 | 1 | 3 |
| Wed, Jun 03 | at CINW 5-2 | 7 | 6 | 2 | 2 | 8 |
| Fri, May 29 | atTEXL 9-1 | 5 | 6 | 6 | 4 | 5 |
What were Stephen Kolek's career stats?
Stephen Kolek played 3 seasons for the Padres and the Royals. He had 12 wins and 150 strikeouts with a 4.13 ERA over 213.1 innings. His best season was 2025: 5 wins, a 3.51 ERA and 77 strikeouts.
More on Stephen Kolek
Stephen Kolek against each club
- vs Arizona Diamondbacks (7)
- vs Los Angeles Dodgers (5)
- vs San Francisco Giants (5)
- vs Cincinnati Reds (4)
- vs Colorado Rockies (4)
- vs Seattle Mariners (4)
- vs St. Louis Cardinals (4)
- vs Texas Rangers (4)
- vs Cleveland Guardians (3)
- vs Miami Marlins (3)
- vs Milwaukee Brewers (3)
- vs Atlanta Braves (2)
- vs Boston Red Sox (2)
- vs Chicago Cubs (2)
- vs New York Mets (2)
- vs Philadelphia Phillies (2)
- vs Toronto Blue Jays (2)
- vs Washington Nationals (2)
- vs Athletics (1)
- vs Baltimore Orioles (1)
- vs Chicago White Sox (1)
- vs Detroit Tigers (1)
- vs Houston Astros (1)
- vs Kansas City Royals (1)
- vs Los Angeles Angels (1)
- vs Minnesota Twins (1)
- vs New York Yankees (1)
- vs Pittsburgh Pirates (1)
- vs Tampa Bay Rays (1)
Similar players
Closest career per-game profiles to Stephen Kolek among MLB players at the same position.
- Graham AshcraftCINAlike in Wins, Strikeouts81out of 100 on profile similarity
- Bryse WilsonMILAlike in Strikeouts, Innings pitched78out of 100 on profile similarity
- Roansy ContrerasAlike in WHIP, Strikeouts78out of 100 on profile similarity
- Matthew LiberatoreSTLAlike in Saves, WHIP77out of 100 on profile similarity
- Andre PallanteSTLAlike in Saves, Strikeouts75out of 100 on profile similarity
Compare Stephen Kolek with Graham Ashcraft, Bryse Wilson, Roansy Contreras