Kenley Jansen

MLB

Detroit Tigers · RP · Born 30 September 1987 · Age 39

Redraft rank: #497 Dynasty rank: #497 Full Baseball rankings · Trade calculator

About Kenley Jansen

Kenley Geronimo Jansen (born September 30, 1987) is a Curaçaoan professional baseball pitcher for the Detroit Tigers of Major League Baseball (MLB). He has previously played in MLB for the Los Angeles Dodgers, Atlanta Braves, Boston Red Sox, and Los Angeles Angels. He has represented the Netherlands national baseball team in international competition. Signed by the Dodgers as an undrafted free agent in 2004, Jansen converted from a catcher to a relief pitcher in the minor leagues and made his major league debut in 2010. He served as the Dodgers' closer starting in 2012, and led the National League (NL) in saves in 2017 and 2022.

Bio summary from Wikipedia.

Player Stats

G	1	PA	AB	0	R	0
H	0	2B	3B	0	HR	0
RBI	0	SB	CS	0	BB	0
SO	0	TB	WAR	0.0

2026 batting — Baseball-Reference

Player Stats

W	4	L	6	ERA	3.20	G	50
GS	0	SV	22	IP	45.0	H	24
R	18	ER	16	BB	23	SO	51
WHIP	1.044	H/9	4.8	HR/9	1.4	BB/9	4.6
K/9	10.2	FIP	4.46	WAR	0.8

2026 pitching — Baseball-Reference

Career — Lahman, through 2025

Batting

Year	Team	G	AB	R	H	2B	RBI	BB	SO	AVG
2010	LAN	26	1	1	1	0	0	1	0	1.000
2013	LAN	75	1	0	0	0	0	0	0	.000
2014	LAN	68	1	0	0	0	0	0	1	.000
2017	LAN	65	4	0	2	1	1	0	0	.500
2019	LAN	62	1	0	0	0	0	0	1	.000
2021	LAN	69	1	0	0	0	0	0	1	.000

Pitching

Year	Team	W	L	ERA	G	SV	IP	H	HR	BB	SO
2010	LAN	1	0	0.67	25	4	27.0	12	0	15	41
2011	LAN	2	1	2.85	51	5	53.2	30	3	26	96
2012	LAN	5	3	2.35	65	25	65.0	33	6	22	99
2013	LAN	4	3	1.88	75	28	76.2	48	6	18	111
2014	LAN	2	3	2.76	68	44	65.1	55	5	19	101
2015	LAN	2	1	2.41	54	36	52.1	33	6	8	80
2016	LAN	3	2	1.83	71	47	68.2	35	4	11	104
2017	LAN	5	0	1.32	65	41	68.1	44	5	7	109
2018	LAN	1	5	3.01	69	38	71.2	54	13	17	82
2019	LAN	5	3	3.71	62	33	63.0	51	9	16	80
2020	LAN	3	1	3.33	27	11	24.1	19	2	9	33
2021	LAN	4	4	2.22	69	38	69.0	36	4	36	86
2022	ATL	5	2	3.38	65	41	64.0	45	8	22	85
2023	BOS	3	6	3.63	51	29	44.2	40	5	17	52
2024	BOS	4	2	3.29	54	27	54.2	38	4	20	62
2025	LAA	5	4	2.59	62	29	59.0	37	8	19	57

Season lines from the Lahman Baseball Database (Version 2025, via SABR), joined through the Chadwick Register ID crosswalk. The databank runs through the 2025 season — the current season is the 2026 line below, from the MLB Stats API.

2026 Season — MLB Stats API

Batting

G	PA	AB	R	H	2B	3B	HR	RBI	SB	CS	BB	SO	AVG	OBP	SLG	OPS
50	0	0	0	0	0	0	0	0	0	0	0	0	—	—	—	—

Pitching

W	L	ERA	G	GS	CG	SHO	SV	IP	H	R	ER	HR	BB	SO	WHIP
4	6	3.20	50	0	0	0	22	45.0	24	18	16	7	23	51	1.04

2026 regular-season line from the MLB Stats API (statsapi.mlb.com), pulled when this page was built. Multi-team stints are combined; rate stats are recomputed from the combined totals.

Watch Kenley Jansen Highlights

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