mlb
Stephen Kolek
Starting pitcher · KC · 2026: 9 GS (10 G) · 54.0 IP · 5.7 K/9 · 2.0 BB/9
4.50
ERA
1.24
WHIP
34
K
54.0
IP
Recent form
Last 15 gamesStrikeouts per outing, oldest → newest. Dashed line = his 2026 average (3.4).
Season calendar
10 games · strikeouts vs his averageMay
Jun
Jul
BelowAbove their averageBest: 06/03 · 7.0 IP, 8 K, 2 ER vs CIN
Splits
Arrows = last 10 vs seasonERAWHIPK/9IP/g
Season10 G4.501.245.75.4
Last 1010 G4.501.245.75.4
Home6 G4.651.263.55.2
Away4 G4.301.228.65.8
3 G2.530.805.97.1Vs opponent uses every 2025 and 2026 outing in our logs.
Where they rank
vs MLB starters, 2026, 3+ outings of 4+ IP avgStrikeouts / 9
5.7
6
Walks / 9
2.0
92
ERA
4.50
39
WHIP
1.24
60
Innings / outing
5.4
70
Percentile, 0–100. Green = top fifth of the pool, red = bottom third.
Most similar
Same stats, closest profile
Game log
25 of 2907/02vs TB
2.0 IP · 4 H · 3 ER · 1 BB0K
06/21 · Reliefvs STL
1.2 IP · 9 H · 9 ER · 1 BB0K
06/14vs HOU
7.1 IP · 5 H · 1 BB4K
06/09vs TEX
5.0 IP · 8 H · 1 ER · 1 BB3K
06/03@ CIN
7.0 IP · 6 H · 2 ER · 2 BB8K
05/29@ TEX
5.0 IP · 6 H · 4 ER · 1 BB5K
05/23vs SEA
9.0 IP · 4 H · 1 BB2K
05/17@ STL
6.1 IP · 4 H · 1 BB3K
05/12@ CHW
4.2 IP · 5 H · 5 ER · 3 BB6K
05/05vs CLE
6.0 IP · 4 H · 3 ER3K
09/24 · 2025@ LAA
6.0 IP · 5 H · 2 ER · 2 BB2K
09/18 · 2025vs SEA
7.1 IP · 2 H · 1 ER · 1 BB8K
09/11 · 2025@ CLE
6.2 IP · 3 H · 1 ER · 1 BB4K
09/06 · 2025vs MIN
7.0 IP · 6 H · 2 ER · 1 BB4K
08/30 · 2025vs DET
6.0 IP · 4 H · 1 ER3K
07/27 · 2025@ STL
6.0 IP · 4 H · 2 ER · 3 BB2K
07/22 · 2025@ MIA
5.2 IP · 8 H · 3 ER · 1 BB5K
07/05 · 2025vs TEX
5.1 IP · 9 H · 6 ER · 1 BB2K
06/29 · 2025@ CIN
5.2 IP · 3 H · 1 ER · 1 BB5K
06/23 · 2025vs WSH
4.1 IP · 5 H · 4 ER · 1 BB5K
06/18 · 2025@ LAD
6.1 IP · 6 H · 3 ER · 1 BB3K
06/13 · 2025@ ARI
4.1 IP · 7 H · 4 ER · 2 BB5K
06/07 · 2025@ MIL
5.2 IP · 3 H · 4 BB2K
06/02 · 2025@ SF
5.2 IP · 3 H · 2 BB3K
05/27 · 2025vs MIA
5.1 IP · 6 H · 6 ER · 2 BB3K
| Date | Opp | K | IP | H | ER | BB | PIT |
|---|---|---|---|---|---|---|---|
| 07/02 | TB | 0 | 2.0 | 4 | 3 | 1 | 51 |
| 06/21 · Relief | STL | 0 | 1.2 | 9 | 9 | 1 | 49 |
| 06/14 | HOU | 4 | 7.1 | 5 | 0 | 1 | 97 |
| 06/09 | TEX | 3 | 5.0 | 8 | 1 | 1 | 86 |
| 06/03 | @CIN | 8 | 7.0 | 6 | 2 | 2 | 96 |
| 05/29 | @TEX | 5 | 5.0 | 6 | 4 | 1 | 91 |
| 05/23 | SEA | 2 | 9.0 | 4 | 0 | 1 | 108 |
| 05/17 | @STL | 3 | 6.1 | 4 | 0 | 1 | 82 |
| 05/12 | @CHW | 6 | 4.2 | 5 | 5 | 3 | 94 |
| 05/05 | CLE | 3 | 6.0 | 4 | 3 | 0 | 83 |
| 09/24 · 2025 | @LAA | 2 | 6.0 | 5 | 2 | 2 | 94 |
| 09/18 · 2025 | SEA | 8 | 7.1 | 2 | 1 | 1 | 99 |
| 09/11 · 2025 | @CLE | 4 | 6.2 | 3 | 1 | 1 | 97 |
| 09/06 · 2025 | MIN | 4 | 7.0 | 6 | 2 | 1 | 95 |
| 08/30 · 2025 | DET | 3 | 6.0 | 4 | 1 | 0 | 71 |
| 07/27 · 2025 | @STL | 2 | 6.0 | 4 | 2 | 3 | 98 |
| 07/22 · 2025 | @MIA | 5 | 5.2 | 8 | 3 | 1 | 80 |
| 07/05 · 2025 | TEX | 2 | 5.1 | 9 | 6 | 1 | 83 |
| 06/29 · 2025 | @CIN | 5 | 5.2 | 3 | 1 | 1 | 71 |
| 06/23 · 2025 | WSH | 5 | 4.1 | 5 | 4 | 1 | 80 |
| 06/18 · 2025 | @LAD | 3 | 6.1 | 6 | 3 | 1 | 97 |
| 06/13 · 2025 | @ARI | 5 | 4.1 | 7 | 4 | 2 | 82 |
| 06/07 · 2025 | @MIL | 2 | 5.2 | 3 | 0 | 4 | 88 |
| 06/02 · 2025 | @SF | 3 | 5.2 | 3 | 0 | 2 | 98 |
| 05/27 · 2025 | MIA | 3 | 5.1 | 6 | 6 | 2 | 93 |
GS counts outings of 4+ IP or 50+ pitches — our logs don't flag starts.