Major League Baseball
Profile | Career Statistics
Kenley Jansen
#74 - Boston Red Sox
Profile
Position Reliever
Ht/Wt 6'5" / 265 lbs
Birthdate September 30, 1987
Birthplace Willemstad, Curaçao
College  
Bats/Throws Switch / Right
Draft N/A
Experience 14 years
Key Statistics
IP 52.2
W/L 4-2
SV 27
ERA 3.42
K 61
BB 20
OBP .278
Errors 0
Last 10 | Season
Date vs S/R Res Score IP H R ER K BB HR P P/IP GB:FB
9/18/24 @ TB R SV 2-1 1.0 0 0 0 2 2 0 25 25.0 .00
9/12/24 @ NYY R 1-2 1.0 0 0 0 1 0 0 9 9.0 .00
9/11/24 BAL R 5-3 1.0 1 0 0 0 0 0 11 11.0 1.00
9/7/24 CHW R SV 7-5 1.0 0 0 0 1 0 0 7 7.0 .00
9/4/24 @ NYM R 3-8 0.1 1 4 4 1 3 0 28 84.0 .00
8/30/24 @ DET R W, BS 7-5 1.0 2 1 1 2 0 0 18 18.0 .00
8/28/24 TOR R SV 3-0 1.0 0 0 0 1 0 0 6 6.0 .00
8/27/24 TOR R 6-3 1.0 1 1 1 0 0 1 14 14.0 .00
8/20/24 @ HOU R SV 6-5 1.0 0 0 0 0 0 0 12 12.0 .00
8/19/24 @ HOU R L 4-5 0.1 1 1 1 1 0 1 4 12.0 .00
Pitching Statistics | Career
Year Team G GS W L SV BS ERA CG SHO IP H R ER BB K HR WP
2024 BOS 52 0 4 2 27 4 3.42 0 0 52.2 38 20 20 20 61 4 2
2023 BOS 51 0 3 6 29 4 3.63 0 0 44.2 40 21 18 17 52 5 1
2022 ATL 65 0 5 2 41 7 3.38 0 0 64.0 45 25 24 22 85 8 1
Pitching Splits
  Overall Last 3 Away Home Day Night Grass Fieldturf Astroturf
W/L
ERA
IP
Hits
Runs
ER
K
BB
HR		 4-2
3.42
52.2
38
20
20
61
20
4		 0-0
0.00
0.0
0
0
0
0
0
0		 2-1
3.42
26.1
17
10
10
33
12
3		 2-1
3.42
26.1
21
10
10
28
8
1		 1-0
2.70
20.0
16
6
6
25
7
2		 3-2
3.86
32.2
22
14
14
36
13
2		 4-2
3.65
49.1
37
20
20
58
18
4		 0-0
0.00
0.0
0
0
0
0
0
0		 0-0
0.00
3.1
1
0
0
3
2
0
OBP
WHIP
GB:FB
SB
CS
SB %
QS %		 .278
1.10
0.81
10
3
76.9
0.0		 .000
0.00
0
0
0
0
0.0		 .269
1.10
0.72
7
0
100.0
0.0		 .288
1.10
0.89
3
3
50.0
0.0		 .293
1.15
1.00
3
1
75.0
0.0		 .269
1.07
0.70
7
2
77.8
0.0		 .281
1.11
0.85
7
3
70.0
0.0		 .000
0.00
0
0
0
0
0.0		 .231
0.90
0.33
3
0
100.0
0.0
TW/TL
AF
AA
Total
Over
Under		 40-12
5.27
4.33
9.60
28
21		 0-0
0.00
0.00
0.00
0
0		 21-6
5.26
4.04
9.30
17
9		 19-6
5.28
4.64
9.92
11
12		 14-4
4.61
3.67
8.28
8
10		 26-8
5.62
4.68
10.29
20
11		 36-12
5.33
4.50
9.83
27
18		 0-0
0.00
0.00
0.00
0
0		 4-0
4.50
2.25
6.75
1
3
Season Injury Log
Date On Date Off Injury Status
9/7/24 9/7/24 Upper Body questionable
7/31/24 8/7/24 Back questionable
3/31/24 4/3/24 Back questionable
3/18/24 3/29/24 Back 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