Kenley Jansen Career Pitching Summary

  • May 7, 2025

Kenley Jansen played in Major League Baseball from 2010 to 2025, appearing in 933 games over 16 seasons. He recorded a total of 54 W and 40 L, an ERA of 2.57, 1,278 SO, a WHIP of 0.962, and a WAR of 24.2.

🧾 Basic Profile

Kenley Jansen
NameKenley Jansen
Date of BirthSeptember 30, 1987
Nationality
Curaçao
PositionPitcher
ThrowsRight
BatsBoth
MLB Debut2010
Beautiful Chart

Kenley Jansen Yearly Pitching Stats

This chart shows the season-by-season changes in ERA, SO, and IP for Kenley Jansen.

Parsing Data

Data Source: Baseball Reference

Image Source: Wikipedia

📊 Career Summary

Kenley Jansen appeared in 933 games over 16 MLB seasons from 2010 to 2025. Below are his cumulative stats and MLB all-time rankings:

GS0 (MLB Rank: 8,004)
GF700 (MLB Rank: 7)
W54 (MLB Rank: 1,361)
L40 (MLB Rank: 1,922)
SV476 (MLB Rank: 4)
ERA2.57 (MLB Rank: 910)
IP927.1 (MLB Rank: 1,425)
SO1,278 (MLB Rank: 342)
BB282 (MLB Rank: 1,736)
H610 (MLB Rank: 2,155)
HR88 (MLB Rank: 1,131)
SO912.4 (MLB Rank: 135)
BB92.74 (MLB Rank: 9,342)
H95.92 (MLB Rank: 11,446)
HR90.85 (MLB Rank: 5,171)
WHIP0.962 (MLB Rank: 11,626)
WAR24.2 (MLB Rank: 434)

📊 Last Season Summary (2025)

In his final season (2025), Kenley Jansen recorded the following stats:

GS0
GF47
W5
L4
SV29
ERA2.59
IP59
SO57
BB19
H37
HR8
SO98.69
BB92.9
H95.64
HR91.22
WHIP0.949
WAR2.4

📈 Seasonal Highlights

  • Most Wins: 2012, 5 W
  • Most SO: 2013, 111 SO
  • Most IP: 2013, 76.2 IP
  • Best WAR: 2017, 3.0 WAR
  • Best ERA: 2010, 0.67 ERA

🎯 Postseason Performance

Kenley Jansen appeared in 59 games during the postseason. He recorded an ERA of 2.29, pitched 63 IP, struck out 94 batters, with 3 W and 2 L.

Kenley Jansen Career Pitching Stats Overview

seasonWLERAW-L%SVSOIPWARWHIPHRHBBRERERA+FIPSO9SO/BBGSGGFCGSHOHR9H9BB9BKHBPIBBWPBF
2010
1
0
0.67
1
4
41
27
1.4
1
0
12
15
2
2
588
1.82
13.7
2.73
0
25
8
0
0
0
4
5
0
1
1
1
109
2011
2
1
2.85
0.667
5
96
53.2
0.9
1.043
3
30
26
17
17
130
1.74
16.1
3.69
0
51
13
0
0
0.5
5
4.4
2
2
0
0
218
2012
5
3
2.35
0.625
25
99
65
1.9
0.846
6
33
22
18
17
162
2.4
13.7
4.5
0
65
40
0
0
0.8
4.6
3
0
3
1
3
252
2013
4
3
1.88
0.571
28
111
76.2
2.6
0.861
6
48
18
16
16
190
1.99
13
6.17
0
75
45
0
0
0.7
5.6
2.1
0
3
1
2
292
2014
2
3
2.76
0.4
44
101
65.1
1.2
1.133
5
55
19
20
20
127
1.91
13.9
5.32
0
68
57
0
0
0.7
7.6
2.6
0
0
2
2
268
2015
2
1
2.41
0.667
36
80
52.1
1.4
0.783
6
33
8
14
14
154
2.14
13.8
10
0
54
50
0
0
1
5.7
1.4
0
2
0
0
200
2016
3
2
1.83
0.6
47
104
68.2
2.8
0.67
4
35
11
14
14
219
1.44
13.6
9.45
0
71
63
0
0
0.5
4.6
1.4
0
2
2
1
251
2017
5
0
1.32
1
41
109
68.1
3
0.746
5
44
7
11
10
315
1.31
14.4
15.57
0
65
57
0
0
0.7
5.8
0.9
1
2
0
2
258
2018
1
5
3.01
0.167
38
82
71.2
0.6
0.991
13
54
17
28
24
129
4.03
10.3
4.82
0
69
59
0
0
1.6
6.8
2.1
2
2
1
0
289
2019
5
3
3.71
0.625
33
80
63
0.1
1.063
9
51
16
28
26
112
3.48
11.4
5
0
62
51
0
0
1.3
7.3
2.3
3
4
0
2
263
2020
3
1
3.33
0.75
11
33
24.1
0.4
1.151
2
19
9
11
9
132
3.03
12.2
3.67
0
27
24
0
0
0.7
7
3.3
0
3
0
0
102
2021
4
4
2.22
0.5
38
86
69
2.5
1.043
4
36
36
21
17
191
3.08
11.2
2.39
0
69
52
0
0
0.5
4.7
4.7
2
2
4
4
278
2022
5
2
3.38
0.714
41
85
64
1
1.047
8
45
22
25
24
122
3.21
12
3.86
0
65
54
0
0
1.1
6.3
3.1
1
2
3
1
260
2023
3
6
3.63
0.333
29
52
44.2
0.7
1.276
5
40
17
21
18
126
3.66
10.5
3.06
0
51
42
0
0
1
8.1
3.4
2
2
1
1
188
2024
4
2
3.29
0.667
27
62
54.2
1.3
1.061
4
38
20
20
20
130
3
10.2
3.1
0
54
38
0
0
0.7
6.3
3.3
2
1
2
2
218
2025
5
4
2.59
0.556
29
57
59
2.4
0.949
8
37
19
18
17
165
3.98
8.7
3
0
62
47
0
0
1.2
5.6
2.9
3
1
2
0
234