BIGLEAGUE

Detroit Tigers · Pitcher · #74

Kenley Jansen

Age 386' 5" · 265lbBats S · Throws RDebut 2010From Willemstad

ERA

4.19

W-L

3-5

K

40

WHIP

1.22

WAR

-0.2

FIP

5.15

Awards

9 major honors

Reliever of the Year ×2

2016 · 2017

All-Star ×7

2008 · 2010 · 2016 · 2017 · 2018 · 2023

League Percentile

2026 season · percentile vs 290 relievers with 20+ IP
the entire league54relief pitchers290
ERA
38
4.19
WHIP
64
1.22
Strikeouts
44
40
K/9
78
10.49
Wins
63
3
Bottom of leagueAverage (50)Top of league

relief pitchers · by ERA

Top 62%

Kenley Jansen's ERA (4.19) ranks below average among 290 relievers with 20+ IP. The number on each bar is a percentile (higher is better); use the tabs to change the comparison pool.

PITCHING

Season · Career
CategoryGamesERAWinsLossesSavesInningsStrikeoutsWalksWHIP
2026 Season384.19351634.140201.22
Career9712.635745492961.213183020.97

Hover over a stat for its definition.

ARSENAL

Pitch arsenal · 2026 usage and average velocity
Cutter85.2%avg 149 km/h
Slider8.2%avg 136 km/h
Sinker6.6%avg 151 km/h

ADVANCED

Advanced metrics · 2026 season

BABIP

.195

K/9

10.49

BB/9

5.24

HR/9

1.83

Quality starts

0

Whiff%

26.5%

GAME LOG

Last 10 games · includes team result
DateOppInningsHitsERWalksStrikeoutsTeam
08.19@ PIT0.22201L
08.17@ PIT1.00002W
08.13vs CLE1.00000W
08.11vs CLE1.01120W
08.09@ SF1.00003W
08.01@ ATH1.02102W
07.29vs BAL1.00011L
07.24vs KC1.00001W
07.22@ CHC1.00011W
07.20@ CHC1.01022W

SPLITS

Situational splits (2026)

Home

Opp AVG.167
IP19.1
K15
WHIP1.19

Away

Opp AVG.196
IP15.0
K25
WHIP1.27

vs LHP

Opp AVG.141
IP18.1
K24
WHIP1.31

vs RHP

Opp AVG.224
IP16.0
K16
WHIP1.13

RISP

Opp AVG.172
IP8.2
K5
WHIP1.62

YEAR BY YEAR

Year-by-year · Career trends

ERALower is better

▲ Trending down year over year
ERA by yearFrom 0.67 in 2010 to 4.19 in 2026. Lower is better for this stat.2010 ERA: 0.670.6720102011 ERA: 2.8520112012 ERA: 2.3520122013 ERA: 1.8820132014 ERA: 2.7620142015 ERA: 2.4120152016 ERA: 1.8320162017 ERA: 1.3220172018 ERA: 3.0120182019 ERA: 3.7120192020 ERA: 3.3320202021 ERA: 2.2220212022 ERA: 3.3820222023 ERA: 3.6320232024 ERA: 3.2920242025 ERA: 2.5920252026 ERA: 4.194.192026
Show yearly figures
ERA year-by-year details
YearERA
20100.67
20112.85
20122.35
20131.88
20142.76
20152.41
20161.83
20171.32
20183.01
20193.71
20203.33
20212.22
20223.38
20233.63
20243.29
20252.59
20264.19

WHIPLower is better

▲ Trending down year over year
WHIP by yearFrom 1.00 in 2010 to 1.22 in 2026. Lower is better for this stat.2010 WHIP: 1.001.0020102011 WHIP: 1.0420112012 WHIP: 0.8520122013 WHIP: 0.8620132014 WHIP: 1.1320142015 WHIP: 0.7820152016 WHIP: 0.670.6720162017 WHIP: 0.7520172018 WHIP: 0.9920182019 WHIP: 1.0620192020 WHIP: 1.1520202021 WHIP: 1.0420212022 WHIP: 1.0520222023 WHIP: 1.281.2820232024 WHIP: 1.0620242025 WHIP: 0.9520252026 WHIP: 1.221.222026
Show yearly figures
WHIP year-by-year details
YearWHIP
20101.00
20111.04
20120.85
20130.86
20141.13
20150.78
20160.67
20170.75
20180.99
20191.06
20201.15
20211.04
20221.05
20231.28
20241.06
20250.95
20261.22

Strikeouts

▼ Trending down year over year
Strikeouts by yearFrom 41 in 2010 to 40 in 2026.2010 Strikeouts: 414120102011 Strikeouts: 9620112012 Strikeouts: 9920122013 Strikeouts: 11111120132014 Strikeouts: 10120142015 Strikeouts: 8020152016 Strikeouts: 10420162017 Strikeouts: 10920172018 Strikeouts: 8220182019 Strikeouts: 8020192020 Strikeouts: 333320202021 Strikeouts: 8620212022 Strikeouts: 8520222023 Strikeouts: 5220232024 Strikeouts: 6220242025 Strikeouts: 5720252026 Strikeouts: 40402026
Show yearly figures
Strikeouts year-by-year details
YearStrikeouts
201041
201196
201299
2013111
2014101
201580
2016104
2017109
201882
201980
202033
202186
202285
202352
202462
202557
202640
YearTeamGamesERAWinsLossesSavesInningsStrikeoutsWalksWHIP
2010LAD250.6710427.041151.00
2011LAD512.8521553.296261.04
2012LAD652.35532565.099220.85
2013LAD751.88432876.2111180.86
2014LAD682.76234465.1101191.13
2015LAD542.41213652.18080.78
2016LAD711.83324768.2104110.67
2017LAD651.32504168.110970.75
2018LAD693.01153871.282170.99
2019LAD623.71533363.080161.06
2020LAD273.33311124.13391.15
2021LAD692.22443869.086361.04
2022ATL653.38524164.085221.05
2023BOS513.63362944.252171.28
2024BOS543.29422754.262201.06
2025LAA622.59542959.057190.95
2026DET384.19351634.140201.22