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Player

Stephen Kolek

KCPBats RThrows RActive
Pitcher DNA
Season identity from stored cubes. Open Fingerprint.

Mix

28.3%

Velocity

90.0 mph

Research indexes
Research scores for 2026. Open Metrics for the decompositions. Not a recommendation.

Pitch Shape

21

Confidence
HIGH
Pitches
838
Stability
62.7%

Command

27

Confidence
MED
Pitches
837
Stability
41.0%

Deception

56

Confidence
MED
Pitches
838
Stability
18.0%

Execution

34

Confidence
MED
Pitches
837
Stability
14.0%

Arsenal Synergy

27

Confidence
HIGH
Pitches
838
Stability
73.3%

Mechanical Consistency

48

Confidence
MED
Pitches
838
Stability
42.0%

Pitch Predictability

7

Confidence
MED
Sequences
613
Stability
29.9%

Arsenal Separation

20

Confidence
MED
Pitches
838
Stability
49.0%

Pitcher Adaptability

7

Confidence
MED
Pitches
838
Stability
0.0%
  • Pitch Shape2111 pctl
  • Command2759 pctl
  • Deception5625 pctl
  • Execution349 pctl
  • Arsenal Synergy2726 pctl
  • Mechanical Consistency4832 pctl
  • Pitch Predictability73 pctl
  • Arsenal Separation2024 pctl
  • Pitcher Adaptability737 pctl
Season neighbors
Archetype and nearest neighbor for 2026 (Overall). Open Similar. Not a recommendation.

Archetype

low-csw / low-whiff

Nearest

Zach Agnos

ERA

4.50

FIP

4.54

WHIP

1.24

K%

15.2%

BB%

5.4%

K-BB%

9.8%

League percentiles
Qualified pitchers, 2026 (50 IP).
  • ERA4.5028 pctl
  • FIP4.5426 pctl
  • WHIP1.2453 pctl
  • K%15.2%4 pctl
  • BB%5.4%94 pctl
  • K-BB%9.8%21 pctl
Season-over-season
ERA vs FIP across seasons.
Season line
Innings from outs; FIP uses strikeouts, walks, HBP, and home runs.
YearGIPSOBBERAFIP
20261054.034124.504.54
202519112.277313.513.82
20244246.239125.213.57