Player

Zack Kelly

BOSPBats RThrows RActive

Season

Matchup

Pitcher DNA

Season identity from stored cubes. Open Fingerprint.

Mix

43.8%

Velocity

90.1 mph

Research indexes

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

Pitch Shape

Confidence: HIGH
Pitches: 283
Stability: 89.8%

Command

Confidence: MED
Pitches: 283
Stability: 29.3%

Deception

Confidence: MED
Pitches: 283
Stability: 0.0%

Execution

Confidence: MED
Pitches: 283
Stability: 34.4%

Arsenal Synergy

Confidence: LOW
Pitches: 283
Stability: 0.0%

Mechanical Consistency

Confidence: HIGH
Pitches: 283
Stability: 98.7%

Pitch Predictability

Confidence: MED
Sequences: 212
Stability: 10.5%

Arsenal Separation

Confidence: HIGH
Pitches: 283
Stability: 100.0%

Pitcher Adaptability

Confidence: MED
Pitches: 283
Stability: 0.0%

Pitch Shape3257 pctl
Command3095 pctl
Deception5940 pctl
Execution4060 pctl
Arsenal Synergy249 pctl
Mechanical Consistency5760 pctl
Pitch Predictability1524 pctl
Arsenal Separation2974 pctl
Pitcher Adaptability1598 pctl

Season neighbors

Archetype and nearest neighbor for 2026 (Overall). Open Similar. Not a recommendation.

Archetype

low-csw / low-whiff

Nearest

Jack Weisenburger

ERA

3.31

FIP

3.65

WHIP

1.29

19.7%

BB%

9.9%

K-BB%

9.8%

League percentiles

Qualified pitchers, 2026 (50 IP).

ERA3.3171 pctl
FIP3.6569 pctl
WHIP1.2942 pctl
K%19.7%30 pctl
BB%9.9%30 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.

Year	G	IP	SO	BB	ERA	FIP
2026	17	16.1	14	7	3.31	3.65
2025	28	35.1	35	12	4.58	3.53
2024	49	56.2	61	27	3.97	4.84
2023	8	9.1	6	8	3.86	5.18
2022	13	13.2	11	4	3.95	4.28