Player

Kenley Jansen

DETPBats SThrows RActive

Season

Matchup

Pitcher DNA

Season identity from stored cubes. Open Fingerprint.

Mix

82.9%

Velocity

91.9 mph

Research indexes

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

Pitch Shape

Confidence: HIGH
Pitches: 697
Stability: 70.8%

Command

Confidence: HIGH
Pitches: 693
Stability: 58.0%

Deception

Confidence: MED
Pitches: 697
Stability: 35.4%

Execution

Confidence: MED
Pitches: 693
Stability: 42.5%

Arsenal Synergy

Confidence: LOW
Pitches: 697
Stability: 0.0%

Mechanical Consistency

Confidence: HIGH
Pitches: 697
Stability: 96.4%

Pitch Predictability

Confidence: MED
Sequences: 526
Stability: 38.1%

Arsenal Separation

Confidence: HIGH
Pitches: 697
Stability: 100.0%

Pitcher Adaptability

Confidence: MED
Pitches: 697
Stability: 5.8%

Pitch Shape5596 pctl
Command2882 pctl
Deception5940 pctl
Execution4897 pctl
Arsenal Synergy3179 pctl
Mechanical Consistency116 pctl
Pitch Predictability5499 pctl
Arsenal Separation2659 pctl
Pitcher Adaptability747 pctl

Season neighbors

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

Archetype

fastball-heavy / high-carry

Nearest

Drew Rom

ERA

3.43

FIP

4.69

WHIP

1.12

28.1%

BB%

13.5%

K-BB%

14.6%

League percentiles

Qualified pitchers, 2026 (50 IP).

ERA3.4366 pctl
FIP4.6921 pctl
WHIP1.1278 pctl
K%28.1%86 pctl
BB%13.5%3 pctl
K-BB%14.6%58 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	47	42.0	48	23	3.43	4.69
2025	62	59.0	57	19	2.59	3.98
2024	54	54.2	62	20	3.29	3.00
2023	51	44.2	52	17	3.63	3.66
2022	65	64.0	85	22	3.38	3.21
2021	69	69.0	86	36	2.22	3.08
2020	27	24.1	33	9	3.33	3.03
2019	62	63.0	80	16	3.71	3.48
2018	69	71.2	82	17	3.01	4.03
2017	65	68.1	109	7	1.32	1.31
2016	71	68.2	104	11	1.83	1.44
2015	54	52.1	80	8	2.41	2.14