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Major League Baseball
Profile | Career Statistics
Kenley Jansen
Profile
Position Reliever
Ht/Wt 6'5" / 265 lbs
Birthdate September 30, 1987
Birthplace Willemstad, CuraƧao
College  
Bats/Throws Switch / Right
Draft N/A
Experience 14 years
Key Statistics
IP 53.0
W/L 5-4
SV 25
ERA 3.06
K 50
BB 18
OBP .265
Errors 1
Last 10 | Season
Date vs S/R Res Score IP H R ER K BB HR P P/IP GB:FB
9/2/25 @ KC R 5-1 1.0 0 0 0 2 1 0 22 22.0 .00
8/31/25 @ HOU R SV 3-0 1.0 0 0 0 0 0 0 11 11.0 .50
8/30/25 @ HOU R SV 4-1 1.0 0 0 0 0 1 0 11 11.0 .00
8/25/25 @ TEX R 4-0 1.0 0 0 0 0 0 0 10 10.0 .00
8/22/25 CHC R L 2-3 1.0 1 1 1 0 0 1 12 12.0 1.00
8/19/25 CIN R L 4-6 1.0 2 2 2 1 1 0 22 22.0 .00
8/17/25 @ ATH R W 11-5 1.0 1 0 0 2 2 0 28 28.0 .00
8/13/25 LAD R SV 6-5 1.0 0 0 0 0 0 0 10 10.0 1.00
8/12/25 LAD R 7-6 1.0 1 1 1 1 0 1 11 11.0 .00
8/11/25 LAD R SV 7-4 1.0 0 0 0 2 0 0 9 9.0 .00
Pitching Statistics | Career
Year Team G GS W L SV BS ERA CG SHO IP H R ER BB K HR WP
2025 LAA 56 0 5 4 25 1 3.06 0 0 53.0 38 18 18 18 50 8 0
2024 BOS 54 0 4 2 27 4 3.29 0 0 54.2 38 20 20 20 62 4 2
2023 BOS 51 0 3 6 29 4 3.63 0 0 44.2 40 21 18 17 52 5 1
Pitching Splits
  Overall Last 3 Away Home Day Night Grass Fieldturf Astroturf
W/L
ERA
IP
Hits
Runs
ER
K
BB
HR
5-4
3.06
53.0
38
18
18
50
18
8
0-0
0.00
0.0
0
0
0
0
0
0
2-1
2.05
26.1
16
6
6
33
11
2
3-3
4.05
26.2
22
12
12
17
7
6
2-0
2.45
11.0
7
3
3
15
7
1
3-4
3.21
42.0
31
15
15
35
11
7
5-4
3.18
51.0
38
18
18
45
18
8
0-0
0.00
0.0
0
0
0
0
0
0
0-0
0.00
2.0
0
0
0
5
0
0
OBP
WHIP
GB:FB
SB
CS
SB %
QS %
.265
1.06
0.58
12
0
100.0
0.0
.000
0.00
0
0
0
0
0.0
.255
1.03
0.46
7
0
100.0
0.0
.275
1.09
0.69
5
0
100.0
0.0
.304
1.27
1.60
3
0
100.0
0.0
.254
1.00
0.48
9
0
100.0
0.0
.273
1.10
0.58
12
0
100.0
0.0
.000
0.00
0
0
0
0
0.0
.000
0.00
0
0
0
0
0.0
TW/TL
AF
AA
Total
Over
Under
45-11
5.02
3.75
8.77
26
28
0-0
0.00
0.00
0.00
0
0
23-4
4.93
3.33
8.26
10
17
22-7
5.10
4.14
9.24
16
11
7-4
4.45
3.82
8.27
4
6
38-7
5.16
3.73
8.89
22
22
45-9
5.09
3.74
8.83
26
26
0-0
0.00
0.00
0.00
0
0
0-2
3.00
4.00
7.00
0
2
Season Injury Log
Date On Date Off Injury Status
8/20/25 8/23/25 Undisclosed questionable
5/7/25 5/10/25 Illness questionable
All-Star Appearances
Date vs S/R Res Score IP H R ER K BB HR P P/IP GB:FB
7/11/23 NL R 2-3 0.1 0 0 0 1 0 0 3 9.0 .00
7/11/17 AL R 1-2 1.0 1 0 0 3 0 0 19 19.0 .00
7/12/16 AL R 2-4 0.1 0 0 0 1 0 0 3 9.0 .00