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 51.2
W/L 4-2
SV 26
ERA 3.48
K 59
BB 18
OBP .275
Errors 0
Last 10 | Season
Date vs S/R Res Score IP H R ER K BB HR P P/IP GB:FB
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
8/17/24 @ BAL R 5-1 1.0 0 0 0 1 0 0 7 7.0 .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 51 0 4 2 26 4 3.48 0 0 51.2 38 20 20 18 59 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
3.48
51.2
38
20
20
59
18
4		 0-0
0.00
0.0
0
0
0
0
0
0		 2-1
3.55
25.1
17
10
10
31
10
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
3.98
31.2
22
14
14
34
11
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
2.1
1
0
0
1
0
0
OBP
WHIP
GB:FB
SB
CS
SB %
QS %		 .275
1.08
0.81
7
3
70.0
0.0		 .000
0.00
0
0
0
0
0.0		 .262
1.07
0.72
4
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		 .264
1.04
0.70
4
2
66.7
0.0		 .281
1.11
0.85
7
3
70.0
0.0		 .000
0.00
0
0
0
0
0.0		 .125
0.43
0.33
0
0
0
0.0
TW/TL
AF
AA
Total
Over
Under		 39-12
5.33
4.39
9.73
28
20		 0-0
0.00
0.00
0.00
0
0		 20-6
5.38
4.15
9.54
17
8		 19-6
5.28
4.64
9.92
11
12		 14-4
4.61
3.67
8.28
8
10		 25-8
5.73
4.79
10.52
20
10		 36-12
5.33
4.50
9.83
27
18		 0-0
0.00
0.00
0.00
0
0		 3-0
5.33
2.67
8.00
1
2
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