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Kenley Jansen

Positions: Relief Pitcher, Catcher and Centerfielder

Bats: Both • Throws: Right

6-5, 265lb (196cm, 120kg)

Team: Boston Red Sox (majors)

Born: September 30, 1987 in Willemstad, Curacao cw

Rookie Status: Exceeded rookie limits during 2011 season

2024 Contract Status: Signed thru 2024, 2 yrs/$32M (23-24)

Service Time (01/2024): 13.073 • Free Agent: 2025

Agents: Wasserman

Full Name: Kenley Geronimo Jansen

Nicknames: Kenleyfornia or Ma'montro

Pronunciation: \KEHN-lee JAN-sin\

Twitter: @kenleyjansen74

Instagram: @kenleyjansen74

View Player Info from the B-R Bullpen

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SUMMARY

2024

Career

WAR

0.3

20.9

ERA

3.45

2.54

833

427

15.2

829.1

1180

WHIP

1.340

0.963

2021 Player Pitching Game Log

2021 Player Pitching Game Log
Rk	Date	Lev	Tm		Opp	Inngs	Dec	IP	H	R	ER	BB	SO	HR	HBP	AB	2B	IBB	GDP	SF	SB	BF	Pit	Str	StL	StS	GB	FB	LD	PU
1	2021-04-03	Maj-NL	Los Angeles Dodgers	@	Colorado Rockies	8-9	S	1.2	0	0	0	1	1	0	0	5	0	0	0	0	0	6	24	14	2	3	0	4	0	1
2	2021-04-06	Maj-NL	Los Angeles Dodgers	@	Oakland Athletics	9-9		1.0	0	0	0	1	0	0	0	3	0	0	0	0	1	4	18	9	4	0	0	3	0	0
3	2021-04-07	Maj-NL	Los Angeles Dodgers	@	Oakland Athletics	9-9		1.0	1	1	1	2	0	0	0	2	0	0	0	1	0	6	22	9	2	1	2	2	2	0
4	2021-04-11	Maj-NL	Los Angeles Dodgers		Washington Nationals	9-9	S	1.0	0	0	0	0	2	0	0	3	0	0	0	0	0	3	8	7	1	3	1	0	0	0
5	2021-04-14	Maj-NL	Los Angeles Dodgers		Colorado Rockies	9-9	S	1.0	0	0	0	1	3	0	0	3	0	0	0	0	0	4	19	12	5	4	0	0	0	0
6	2021-04-16	Maj-NL	Los Angeles Dodgers	@	San Diego Padres	8-9		1.1	1	1	1	1	2	0	0	5	0	0	0	0	1	6	26	17	5	5	2	1	0	1
7	2021-04-20	Maj-NL	Los Angeles Dodgers	@	Seattle Mariners	9-9	S	1.0	0	0	0	0	2	0	0	3	0	0	0	0	0	3	10	8	3	2	0	1	0	0
8	2021-04-24	Maj-NL	Los Angeles Dodgers		San Diego Padres	8-9	S	1.1	0	0	0	1	2	0	0	4	0	0	0	0	3	5	23	13	6	2	2	0	0	0
9	2021-04-26	Maj-NL	Los Angeles Dodgers		Cincinnati Reds	10-10	L	1.0	1	2	1	1	1	1	0	4	0	0	0	0	1	5	24	15	4	2	0	3	0	1
10	2021-05-01	Maj-NL	Los Angeles Dodgers	@	Milwaukee Brewers	8-8		1.0	0	0	0	1	0	0	0	3	0	0	0	0	0	4	15	10	3	0	2	1	0	0
11	2021-05-04 (2)	Maj-NL	Los Angeles Dodgers	@	Chicago Cubs	7-7		1.0	0	0	0	1	0	0	0	2	0	0	1	0	0	3	15	8	3	2	1	1	0	0
12	2021-05-05	Maj-NL	Los Angeles Dodgers	@	Chicago Cubs	10-10		1.0	0	1	0	3	0	0	0	1	0	2	1	1	0	5	12	6	1	2	1	1	0	0
13	2021-05-09	Maj-NL	Los Angeles Dodgers	@	Los Angeles Angels	8-8		1.0	1	0	0	1	2	0	0	4	0	1	0	0	2	5	17	12	5	4	1	1	0	0
14	2021-05-11	Maj-NL	Los Angeles Dodgers		Seattle Mariners	9-9	S	1.0	0	0	0	0	2	0	0	3	0	0	0	0	0	3	14	8	2	4	0	1	0	1
15	2021-05-14	Maj-NL	Los Angeles Dodgers		Miami Marlins	9-9	S	1.0	0	0	0	0	2	0	0	3	0	0	0	0	0	3	12	8	2	3	0	1	0	0
16	2021-05-17	Maj-NL	Los Angeles Dodgers		Arizona Diamondbacks	8-9	S	1.1	1	0	0	1	0	0	0	4	0	0	1	0	0	5	17	12	4	0	3	1	0	0
17	2021-05-19	Maj-NL	Los Angeles Dodgers		Arizona Diamondbacks	9-9	S	1.0	0	0	0	0	2	0	0	3	0	0	0	0	0	3	12	9	1	4	1	0	0	0
18	2021-05-20	Maj-NL	Los Angeles Dodgers		Arizona Diamondbacks	9-9	S	1.0	0	0	0	0	2	0	0	3	0	0	0	0	0	3	17	11	2	3	0	1	0	0
19	2021-05-22	Maj-NL	Los Angeles Dodgers	@	San Francisco Giants	9-9	S	1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	10	7	2	2	1	1	1	0
20	2021-05-27	Maj-NL	Los Angeles Dodgers		San Francisco Giants	9-9	S	1.0	0	0	0	0	2	0	0	3	0	0	0	0	0	3	11	9	1	4	0	1	0	0
21	2021-05-28	Maj-NL	Los Angeles Dodgers		San Francisco Giants	10-10	L	0.2	2	3	2	1	1	0	0	4	1	0	0	0	0	5	21	11	2	3	0	3	2	0
22	2021-06-01	Maj-NL	Los Angeles Dodgers		St. Louis Cardinals	9-9		0.2	0	0	0	0	0	0	0	2	0	0	0	0	0	2	7	5	2	1	1	1	0	1
23	2021-06-04	Maj-NL	Los Angeles Dodgers	@	Atlanta Braves	9-9		1.0	0	0	0	2	1	0	0	3	0	0	0	0	0	5	26	12	4	3	0	2	0	1
24	2021-06-08	Maj-NL	Los Angeles Dodgers	@	Pittsburgh Pirates	9-9	S	0.1	0	0	0	0	1	0	0	1	0	0	0	0	0	1	3	3	0	1	0	0	0	0
25	2021-06-09	Maj-NL	Los Angeles Dodgers	@	Pittsburgh Pirates	8-9	S	1.1	0	0	0	1	1	0	0	4	0	0	0	0	0	5	24	16	4	1	1	2	2	0
26	2021-06-13	Maj-NL	Los Angeles Dodgers		Texas Rangers	9-9	S	1.0	2	0	0	0	0	0	0	5	0	0	0	0	0	5	20	17	2	1	1	4	2	2
27	2021-06-14	Maj-NL	Los Angeles Dodgers		Philadelphia Phillies	9-9	S	1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	9	6	2	1	1	1	1	0
28	2021-06-18	Maj-NL	Los Angeles Dodgers	@	Arizona Diamondbacks	9-9	S	1.0	0	0	0	0	0	0	0	3	0	0	0	0	0	3	13	10	3	2	2	1	0	0
29	2021-06-20	Maj-NL	Los Angeles Dodgers	@	Arizona Diamondbacks	9-9	S	1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	7	6	1	1	2	0	0	0
30	2021-06-25	Maj-NL	Los Angeles Dodgers		Chicago Cubs	9-9		1.0	1	0	0	0	2	0	0	4	0	0	0	0	0	4	11	8	3	2	2	0	0	0
31	2021-06-28	Maj-NL	Los Angeles Dodgers		San Francisco Giants	9-9	S	1.0	1	0	0	0	1	0	0	3	0	0	0	0	0	3	11	7	3	1	1	1	1	0
32	2021-06-29	Maj-NL	Los Angeles Dodgers		San Francisco Giants	9-9	S	1.0	0	0	0	1	2	0	1	3	0	0	0	0	0	5	19	10	2	2	0	1	0	1
33	2021-07-03	Maj-NL	Los Angeles Dodgers	@	Washington Nationals	9-9	S	1.0	1	0	0	1	2	0	0	4	0	0	0	0	0	5	18	13	2	5	0	2	2	0
34	2021-07-04	Maj-NL	Los Angeles Dodgers	@	Washington Nationals	9-9		1.0	1	0	0	0	1	0	0	3	0	0	1	0	0	3	16	15	4	1	2	0	0	0
35	2021-07-07	Maj-NL	Los Angeles Dodgers	@	Miami Marlins	8-8		0.2	1	0	0	1	1	0	0	3	0	0	0	0	1	5	25	13	3	5	0	2	1	1
36	2021-07-11	Maj-NL	Los Angeles Dodgers		Arizona Diamondbacks	9-9	W	1.0	1	0	0	0	0	0	0	4	0	0	0	0	0	4	13	9	2	1	0	4	1	2
37	2021-07-18	Maj-NL	Los Angeles Dodgers	@	Colorado Rockies	9-9		1.0	2	1	1	0	0	0	0	5	1	0	0	0	0	5	13	11	0	3	2	3	1	0
38	2021-07-21	Maj-NL	Los Angeles Dodgers		San Francisco Giants	9-9	L	0.1	3	3	3	2	1	1	0	4	1	0	0	0	0	6	27	14	3	4	0	3	2	0
39	2021-07-22	Maj-NL	Los Angeles Dodgers		San Francisco Giants	9-9	L	0.2	4	4	4	2	2	0	0	6	1	0	0	0	0	8	33	20	2	6	1	3	3	0
40	2021-07-24	Maj-NL	Los Angeles Dodgers		Colorado Rockies	9-9	S	1.0	0	0	0	1	1	0	0	3	0	0	0	0	0	4	15	10	3	1	0	2	0	1
41	2021-07-30	Maj-NL	Los Angeles Dodgers	@	Arizona Diamondbacks	8-8		1.0	2	0	0	1	3	0	0	5	1	0	0	0	0	6	26	15	4	5	0	2	1	0
42	2021-08-04	Maj-NL	Los Angeles Dodgers		Houston Astros	9-9		1.0	2	2	2	0	3	1	0	5	0	0	0	0	0	5	23	16	5	3	0	2	1	0
43	2021-08-06	Maj-NL	Los Angeles Dodgers		Los Angeles Angels	9-9		1.0	0	0	0	0	2	0	0	3	0	0	0	0	0	3	12	11	3	2	1	0	0	0
44	2021-08-07	Maj-NL	Los Angeles Dodgers		Los Angeles Angels	9-9	S	1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	9	8	2	1	0	2	0	0
45	2021-08-12	Maj-NL	Los Angeles Dodgers	@	Philadelphia Phillies	8-8		1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	13	9	1	4	0	2	0	0
46	2021-08-13	Maj-NL	Los Angeles Dodgers	@	New York Mets	9-10	W	2.0	0	1	0	2	1	0	0	6	0	1	0	0	0	8	19	12	0	2	2	3	0	0
47	2021-08-16	Maj-NL	Los Angeles Dodgers		Pittsburgh Pirates	9-9	S	1.0	1	0	0	0	1	0	0	4	1	0	0	0	0	4	11	11	5	0	2	1	1	0
48	2021-08-17	Maj-NL	Los Angeles Dodgers		Pittsburgh Pirates	9-9	S	1.0	2	1	1	1	1	0	0	5	1	0	0	0	0	6	24	15	1	4	2	2	2	0
49	2021-08-20	Maj-NL	Los Angeles Dodgers		New York Mets	9-9	S	1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	7	7	2	3	1	1	0	0
50	2021-08-21	Maj-NL	Los Angeles Dodgers		New York Mets	9-9	S	1.0	0	0	0	0	2	0	1	3	0	0	0	0	0	4	12	9	3	4	0	1	0	0
51	2021-08-24	Maj-NL	Los Angeles Dodgers	@	San Diego Padres	9-9	S	1.0	1	0	0	1	2	0	0	4	0	0	0	0	0	5	24	17	4	3	2	0	0	0
52	2021-08-25	Maj-NL	Los Angeles Dodgers	@	San Diego Padres	9-9		1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	13	10	4	0	1	1	0	0
53	2021-08-28	Maj-NL	Los Angeles Dodgers		Colorado Rockies	9-9	S	1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	14	12	4	3	0	2	0	1
54	2021-08-29	Maj-NL	Los Angeles Dodgers		Colorado Rockies	8-8		1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	13	9	2	0	2	0	0	0
55	2021-08-31	Maj-NL	Los Angeles Dodgers		Atlanta Braves	9-9	S	1.0	0	0	0	0	2	0	0	3	0	0	0	0	0	3	14	10	1	5	0	1	0	1
56	2021-09-03	Maj-NL	Los Angeles Dodgers	@	San Francisco Giants	9-9		1.0	0	0	0	2	0	0	0	3	0	0	0	0	0	5	21	8	1	3	1	2	0	0
57	2021-09-09	Maj-NL	Los Angeles Dodgers	@	St. Louis Cardinals	8-8		1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	9	7	1	2	1	1	0	1
58	2021-09-10	Maj-NL	Los Angeles Dodgers		San Diego Padres	9-9	S	1.0	1	0	0	0	0	0	0	4	0	0	0	0	0	4	7	6	1	1	2	2	0	1
59	2021-09-11	Maj-NL	Los Angeles Dodgers		San Diego Padres	9-9	S	1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	8	6	2	1	1	1	0	1
60	2021-09-14	Maj-NL	Los Angeles Dodgers		Arizona Diamondbacks	9-9		1.0	0	0	0	0	0	0	0	3	0	0	0	0	0	3	12	8	2	0	3	0	0	0
61	2021-09-15	Maj-NL	Los Angeles Dodgers		Arizona Diamondbacks	9-9	S	1.0	0	0	0	0	3	0	0	3	0	0	0	0	0	3	11	9	4	3	0	0	0	0
62	2021-09-18	Maj-NL	Los Angeles Dodgers	@	Cincinnati Reds	9-9	S	0.1	0	0	0	0	1	0	0	1	0	0	0	0	0	1	6	3	1	2	0	0	0	0
63	2021-09-19	Maj-NL	Los Angeles Dodgers	@	Cincinnati Reds	9-9		1.0	1	1	1	0	2	1	0	4	0	0	0	0	0	4	17	13	2	3	0	2	0	0
64	2021-09-21	Maj-NL	Los Angeles Dodgers	@	Colorado Rockies	9-9	W	1.0	0	0	0	2	1	0	0	3	0	0	0	0	0	5	20	9	1	4	0	2	0	0
65	2021-09-23	Maj-NL	Los Angeles Dodgers	@	Colorado Rockies	9-9	W	1.0	1	0	0	0	2	0	0	4	0	0	0	0	0	4	15	9	1	1	1	1	1	0
66	2021-09-24	Maj-NL	Los Angeles Dodgers	@	Arizona Diamondbacks	9-9	S	1.0	0	0	0	0	1	0	0	3	0	0	0	0	0	3	8	7	3	2	0	2	1	0
67	2021-09-26	Maj-NL	Los Angeles Dodgers	@	Arizona Diamondbacks	9-9	S	1.0	1	0	0	0	2	0	0	4	0	0	0	0	0	4	15	12	4	1	1	1	1	0
68	2021-09-29	Maj-NL	Los Angeles Dodgers		San Diego Padres	9-9	S	1.0	0	0	0	0	3	0	0	3	0	0	0	0	0	3	10	9	1	5	0	0	0	0
69	2021-10-01	Maj-NL	Los Angeles Dodgers		Milwaukee Brewers	8-9	S	1.1	0	0	0	0	1	0	0	5	0	0	0	0	1	5	21	16	6	3	2	2	0	2

2021 Player Pitching Splits

2021 Player Pitching Splits
Split	G	PA	AB	R	H	2B	3B	HR	SB	CS	BB	SO	BA	OBP	SLG	OPS	BAbip	TB	GDP	HBP	SH	SF	IBB
Total	69	278	236	21	36	7	0	4	10	0	36	86	.153	.268	.233	.501	.216	55	4	2	1	2	4

Home	37	144	130	15	22	5	0	3	5	0	12	52	.169	.250	.277	.527	.253	36	1	2	0	0	0
Away	32	134	106	6	14	2	0	1	5	0	24	34	.132	.288	.179	.467	.178	19	3	0	1	2	4

April	9	42	32	4	3	0	0	1	6	0	8	13	.094	.268	.188	.456	.105	6	0	0	1	1	0
May	12	45	36	4	4	1	0	0	2	0	8	14	.111	.267	.139	.406	.174	5	3	0	0	1	3
June	11	39	34	0	4	0	0	0	0	0	4	10	.118	.231	.118	.348	.167	4	0	1	0	0	0
July	9	46	37	8	15	4	0	1	1	0	8	11	.405	.511	.595	1.106	.560	22	1	0	0	0	0
August	14	56	51	4	6	2	0	1	0	0	4	20	.118	.196	.216	.412	.167	11	0	1	0	0	1
September	13	45	41	1	4	0	0	1	0	0	4	17	.098	.178	.171	.349	.130	7	0	0	0	0	0
October	1	5	5	0	0	0	0	0	1	0	0	1	.000	.000	.000	.000	.000	0	0	0	0	0	0

As Reliever	69	278	236	21	36	7	0	4	10	0	36	86	.153	.268	.233	.501	.216	55	4	2	1	2	4

vs RHB as RHP	65	142	118		16	3	0	1			21	48	.136	.270	.186	.456	.214	22	0	1	0	1	3
vs LHB as RHP	61	136	118		20	4	0	3			15	38	.170	.267	.280	.546	.218	33	0	1	1	1	1

Bases Empty	62	145	130		20	5	0	1			13	53	.154	.241	.215	.457	.250	28	0	2	0	0	0
Runners On	41	133	106		16	2	0	3			23	33	.151	.298	.255	.552	.181	27	0	0	1	2	4

vs. Younger Batters	68	240	203		30	5	0	3			31	75	.148	.265	.217	.481	.213	44	0	2	1	2	4
vs. Older Batters	26	38	33		6	2	0	1			5	11	.182	.290	.333	.623	.238	11	0	0	0	0	0

Table
Split	W	L	W-L%	ERA	G	GS	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	SO9	SO/W
Total	4	4	.500	2.22	69	0	38	69.0	36	21	17	4	36	4	86	2	2	4	278	1.044	11.2	2.39

Home	1	4	.200	3.22	37	0	26	36.1	22	15	13	3	12	0	52	2	1	1	144	0.936	12.9	4.33
Away	3	0	1.000	1.10	32	0	12	32.2	14	6	4	1	24	4	34	0	1	3	134	1.163	9.4	1.42

April	0	1	.000	2.61	9	0	5	10.1	3	4	3	1	8	0	13	0	0	1	42	1.065	11.3	1.63
May	0	1	.000	1.50	12	0	7	12.0	4	4	2	0	8	3	14	0	0	2	45	1.000	10.5	1.75
June	0	0		0.00	11	0	8	10.1	4	0	0	0	4	0	10	1	0	0	39	0.774	8.7	2.50
July	1	2	.333	9.39	9	0	2	7.2	15	8	8	1	8	0	11	0	0	0	46	3.000	12.9	1.38
August	1	0	1.000	1.80	14	0	8	15.0	6	4	3	1	4	1	20	1	0	0	56	0.667	12.0	5.00
September	2	0	1.000	0.73	13	0	7	12.1	4	1	1	1	4	0	17	0	2	1	45	0.649	12.4	4.25
October	0	0		0.00	1	0	1	1.1	0	0	0	0	0	0	1	0	0	0	5	0.000	6.8

As Reliever	4	4	.500	2.22	69	0	38	69.0	36	21	17	4	36	4	86	2	2	4	278	1.044	11.2	2.39

Please note that splits include both major and minor league stats. We have decided that the splits across all levels is more useful than just minor league stats.

More Jansen Pages

Kenley Jansen Overview

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Batting Finders & Advanced Stats

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Minor League Batting Game Logs & Splits (s.2008)

Minor League Pitching Game Logs & Splits (s.2008)

More Kenley Jansen Pages at Baseball Reference

Kenley Jansen

2021 Player Pitching Game Log

2021 Player Pitching Splits

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