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Kenley Jansen LAA RP R 

Born: 09/30/1987 Age: 37

FanGraphs Player Page

2025 OPL OPL Player Page

Signed By

World's Smallest Harper for $43

On MLB 40-man: YES
Acquired: Free Agent (BOS) Feb'25

Wed 8/20 Thu 8/21 Fri 8/22
CIN 1-1 7•• --- CHC 9:38 PM EDT

Positions
RP
2026 Earned Positions
RP

All Leagues
Average $7.48 Median $6.00
Old School (5x5)
Average $14.35 Median $14.00

All Leagues
Average $4.70 Median $3.00
Old School (5x5)
Average $14.10 Median $15.00

Roster%
97.25%
Change
7Day 0.61%
30Day 8.56%

2025 OPL 2025 OPL Round 6
OPL Roster%
0.00%
OPL Average Salary
$0.00


August 20, 2025 6:49 PM : Jansen told reporters Wednesday that he is dealing with rib pain on his left side that he tweaked during a workout, Erica Weston of Bally Sports West reports.
Analysis: The injury factored into his performance against the Reds on Tuesday, when he gave up two runs on two hits and a walk while striking out one batter in one frame. He'll be shut down from throwing for the time being, but the veteran closer is hopeful to avoid a stint on the injured list. Reid Detmers and Ryan Zeferjahn are the top candidates to step up into high-leverage situations while Jansen is sidelined.

MLB Stats

Pitching

YearTeamGGSIP WINS SV K ERA WHIP
2010LAD25027.014410.666671.00000
2011LAD51053.225962.850931.04348
2012LAD65065.0525992.353850.84615
2013LAD75076.24281111.878260.86087
2014LAD68065.12441012.755101.13265
2015LAD54052.1236802.407640.78344
2016LAD71068.23471041.834950.66990
2017LAD65068.15411091.317070.74634
2018LAD69071.2138823.013950.99070
2019LAD62063.0533803.714291.06349
2020LAD27024.1311333.328771.15069
2021LAD69069.0438862.217391.04348
2022ATL65064.0541853.375001.04688
2023BOS51044.2329523.626871.27612
2024BOS54054.2427623.292681.06098
2025LAA51048.0523483.000001.08333

MILB Stats

Pitching

YearTeamGGSIP WINS SV K ERA WHIP
2009LAD (A+)12011.200194.628572.14286
2010LAD (A+)11018.010281.500001.16667
2010LAD (AA)22027.048501.666671.14815
2011LAD (A+)222.00040.000000.00000
2011LAD (AA)506.00094.500000.83333
2015LAD (A+)655.10085.062501.31250

Recent Games

Last 10 MLB Games

DateTeamOpponentGSWinSaveHoldIPTBF RERHKBBHBPHR
Aug 19, 2025 LAA CIN 0 0 0 0 1.0 6 2 2 2 1 1 1 0
Aug 17, 2025 LAA @ATH 0 1 0 0 1.0 6 0 0 1 2 2 0 0
Aug 13, 2025 LAA LAD 0 0 1 0 1.0 3 0 0 0 0 0 0 0
Aug 12, 2025 LAA LAD 0 0 0 0 1.0 4 1 1 1 1 0 0 1
Aug 11, 2025 LAA LAD 0 0 1 0 1.0 3 0 0 0 2 0 0 0
Aug 9, 2025 LAA @DET 0 0 1 0 1.0 3 0 0 0 2 0 0 0
Aug 6, 2025 LAA TBR 0 0 0 0 1.0 4 0 0 0 1 1 0 0
Aug 3, 2025 LAA CHW 0 1 0 0 1.0 5 0 0 1 0 1 0 0
Jul 29, 2025 LAA TEX 0 0 1 0 1.0 4 0 0 1 1 0 0 0
Jul 28, 2025 LAA TEX 0 0 1 0 1.1 4 0 0 0 1 0 0 0
Totals 0 2 5 0 10.1 42 3 3 6 11 5 1 1

Avg Salary & Roster%

Last 30 days

2026 Position Eligibility Progress

To gain eligibility, a player must have 5 GS or 10 G at a position in the majors, or 20 G at a position in the minors.

Transaction History

Date Transaction Type Team Salary
April 4, 2017 11:02 PM add World's Smallest Harper $27
October 7, 2017 1:50 AM increase World's Smallest Harper $29
October 12, 2018 12:44 PM increase World's Smallest Harper $31
October 4, 2019 4:42 PM increase World's Smallest Harper $33
September 30, 2020 5:56 PM increase World's Smallest Harper $35
October 9, 2021 3:27 AM increase World's Smallest Harper $37
October 14, 2022 12:57 AM increase World's Smallest Harper $39
October 12, 2023 10:46 AM increase World's Smallest Harper $41
October 10, 2024 12:04 AM increase World's Smallest Harper $43

Recent Trades for Kenley Jansen in Old School (5x5)

Date Proposing Team Proposing Team Gives Accepting Team Accepting Team Gives
August 18, 2025 9:44 PM Funkytown Padres Jurickson Profar ATL OF S $3 
Colby Thomas ATH OF R $1 
 Lodem Up Kenley Jansen LAA RP R $12 
$8 loan
August 18, 2025 8:56 PM The Mad Batters Jonathan Aranda TBR 1B/2B L $3 10IL 
Dalton Rushing LAD C/OF L $1
 Trashcan Bangers 2 Kenley Jansen LAA RP R $14 
Nathan Eovaldi TEX SP R $8 
$15 loan
August 17, 2025 10:54 AM Soto pop Emmanuel Rodriguez MIN AAA OF L $3
Jacob Wilson ATH SS R $5 10IL 
 You're Killin' Me Smalls Kenley Jansen LAA RP R $14 
$6 loan
August 17, 2025 3:50 AM ‘95 Slide Ben Brown CHC SP/RP R $4
Reese Olson DET SP R $5 60IL
 Congrejeros de Santurce Kenley Jansen LAA RP R $17 
$10 loan
August 15, 2025 5:39 PM One Man Wolfpack Cole Ragans KCR SP L $17 60IL 
Dylan Beavers BAL OF L $2 
Gage Jump ATH AA SP L $1
 Jazz Chisholm and The Plump Dumpers Kenley Jansen LAA RP R $12 
Luis Castillo SEA SP R $16 
Will Vest DET RP R $1 
$12 loan
August 13, 2025 8:29 AM The ATC Saxophones Emmet Sheehan LAD SP R $1 
Aidan Miller PHI AA SS R $1
 Butterscotch Kenley Jansen LAA RP R $14 
$13 loan
August 10, 2025 4:16 PM This is WAR Kenley Jansen LAA RP R $8 
Jarren Duran BOS OF L $15 
Anthony Volpe NYY SS R $12 
$20 loan 		Bartolo's Cologne Matt Chapman SFG 3B R $8 10IL 
Emmanuel Rodriguez MIN AAA OF L $4
Dalton Rushing LAD C/OF L $2
Jack Perkins ATH SP/RP R $1 
July 20, 2025 7:05 AM Clown Prince Luis Garcia WSN 2B L $3 
Matt Shaw CHC 2B/SS/3B R $5
Jac Caglianone KCR 1B/OF L $3 10IL
 The Kernel Kenley Jansen LAA RP R $14 
Fernando Tatis Jr. SDP OF R $44 
$47 loan
July 12, 2025 8:12 PM The RiverDawgs Garrett Cleavinger TBR RP L $2
Calvin Faucher MIA RP R $4
Jett Williams NYM AAA SS/OF R $2
 Regression to the Means Kenley Jansen LAA RP R $23 
$15 loan
July 11, 2025 4:07 PM Jobu And The Rum Runners Kenley Jansen LAA RP R $10 
Kyle Finnegan WSN RP R $6 
 🤜Sofa King Good🤛 Cal Raleigh SEA C S $15