P Kenley Jansen #19
Erie SeaWolves (DET) EL
Age: 38 | Bats: S | Throws: R | Morale: Angry
08/31/2026
BNN Index | EL | SCORES | STANDINGS | STATS | TEAMS | PLAYERS | TRANSACTIONS | HISTORY
P KENLEY JANSEN #19 - AGE: 38 - BATS: S - THROWS: R - MORALE: ANGRY
G GS Rec SV ERA IP HA HR BB K WHIP WAR
47 0 1-4 27 2.72 39.2 41 2 8 27 1.24 0.6
PITCHING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.
Stuff 45 45 40 65
Movement 60 55 60 60
Control 60 60 60 65
PITCHING RATINGS
Pitch Cur. Pot.
Slider 55 70
Sinker 55 60
Cutter 55 60
 
 
OTHER PITCHING RATINGS
Velocity 87-89 Mph
Stamina 20
Suggested Role Strictly BP
Type Neutral
Hold Runners 35
Defense 20
RUN/BUNT RATINGS
Running Speed: 25
Stealing Ability: 30
Baserunning Inst.: 30
Sacrifice Bunt: 45
Bunt for Hit: 20
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
08/30/2026 HAR Win, 2-1 1.0 0 0 0 0 0 Save
08/29/2026 HAR Win, 6-5 1.0 1 0 0 0 2 Save
08/25/2026 @ RCH Loss, 7-8 0.1 1 0 0 0 0
08/24/2026 @ RCH Win, 5-2 1.0 0 0 0 0 2 Save
08/22/2026 @ HAR Win, 9-8 0.2 2 2 2 0 0
08/19/2026 RCH Loss, 5-10 1.0 3 1 1 0 0
08/14/2026 @ POR Win, 2-1 1.0 1 0 0 0 1 Save
08/13/2026 TRE Loss, 3-6 1.0 3 2 2 0 0
08/08/2026 REA Win, 5-3 1.0 2 0 0 0 0 Save
08/05/2026 @ AKR Win, 3-0 1.0 0 0 0 0 1 Save
PERSONALITY
He walks the talk.
Personality Class: Humble
High: Work Ethic
Low: Adaptability, Greed
Birthday:09/30/1987
Born in:Willemstad, CUR
Nationality:Curaçaoan
Height:6' 5"
Weight:300 lbs
Local Popularity:Popular
National Pop.:Popular
STATUS
Contract:Minor League Contract
Salary:-
Signed Through:-
Major Service:15 Years, 73 Days
Service This Yr:None
40-Man Service:15 Years, 73 Days
Pro Service:21 Years
Arbitration Eligibility:Not eligible, free agent after contract expires!
Option Years:2 option years left
Contract Extension: -
Drafted:-
EASTERN LEAGUE 2026 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 47 0 1 4 27 2.72 39.2 41 15 12 2 8 27 0 0.0 0 0 0.0
Pitching SVO BS SV% RA GF R/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 29 2 93.1 47 33 12.03 9.30 6.13 1.82 3.77 1.24 86 0.6 .295        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 67 12 3 0 1 5 6 17 0 0 2 .179 .267 .269 .535      
vs. RHB 93 29 4 0 1 10 2 10 1 1 2 .312 .337 .387 .724      
EASTERN LEAGUE 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
Last Week 4 0 0 0 3 0.00 3.1 2 0 0 0 0 4  
April 2 0 0 0 2 0.00 2.0 0 0 0 0 0 0  
May 12 0 0 2 7 0.90 10.0 6 3 1 0 6 7  
June 11 0 0 1 7 4.00 9.0 13 4 4 0 2 6  
July 10 0 1 1 4 2.16 8.1 8 3 2 1 0 8  
August 12 0 0 0 7 4.35 10.1 14 5 5 1 0 6  
Career 47 0 1 4 27 2.72 39.2 41 15 12 2 8 27  
Home 19 0 0 2 12 4.58 17.2 26 10 9 1 3 11  
Road 28 0 1 2 15 1.23 22.0 15 5 3 1 5 16  
Grass 47 0 1 4 27 2.72 39.2 41 15 12 2 8 27  
Day 17 0 1 2 9 3.00 15.0 17 7 5 2 2 6  
Night 30 0 0 2 18 2.55 24.2 24 8 7 0 6 21  
As Reliever / Substitution 47 0 1 4 27 2.72 39.2 41 15 12 2 8 27  
FLORIDA STATE LEAGUE 2026 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 4 0 0 1 1 2.45 3.2 5 1 1 0 0 2 0 0.0 0 0 0.0
Pitching SVO BS SV% RA GF R/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 1 0 100.0 4 1 12.27 12.27 4.91 0.00 2.29 1.36 61 0.1 .333        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 9 3 1 0 0 1 0 1 0 0 0 .333 .333 .444 .778      
vs. RHB 8 2 1 0 0 0 0 1 0 0 0 .250 .250 .375 .625      
FLORIDA STATE LEAGUE 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
April 4 0 0 1 1 2.45 3.2 5 1 1 0 0 2  
Career 4 0 0 1 1 2.45 3.2 5 1 1 0 0 2  
Home 3 0 0 1 1 3.00 3.0 4 1 1 0 0 1  
Road 1 0 0 0 0 0.00 0.2 1 0 0 0 0 1  
Grass 4 0 0 1 1 2.45 3.2 5 1 1 0 0 2  
Night 4 0 0 1 1 2.45 3.2 5 1 1 0 0 2  
As Reliever / Substitution 4 0 0 1 1 2.45 3.2 5 1 1 0 0 2  
CAREER PITCHING STATS
Year/Team/League Age G GS W L SV ERA IP HA R ER HR BB K CG SHO WHIP BABIP FIP WAR ERA+
2010 Los Angeles - MLB 22 25 0 1 0 4 0.67 27.0 12 2 2 0 15 41 0 0 1.00 .235 1.81 0.9 596
2011 Los Angeles - MLB 23 51 0 2 1 5 2.85 53.2 30 17 17 3 26 96 0 0 1.04 .297 1.84 1.6 135
2012 Los Angeles - MLB 24 65 0 5 3 25 2.35 65.0 33 18 17 6 22 99 0 0 0.85 .223 2.45 1.5 166
2013 Los Angeles - MLB 25 75 0 4 3 28 1.88 76.2 48 16 16 6 18 111 0 0 0.86 .275 2.05 2.0 201
2014 Los Angeles - MLB 26 68 0 2 3 44 2.76 65.1 55 20 20 5 19 101 0 0 1.13 .350 1.93 1.8 132
2015 Los Angeles - MLB 27 54 0 2 1 36 2.41 52.1 33 14 14 6 8 80 0 0 0.78 .255 2.24 1.3 160
2016 Los Angeles - MLB 28 71 0 3 2 47 1.83 68.2 35 14 14 4 11 104 0 0 0.67 .244 1.46 2.5 222
2017 Los Angeles - MLB 29 65 0 5 0 41 1.32 68.1 44 11 10 5 7 109 0 0 0.75 .291 1.43 2.6 322
2018 Seattle - MLB 30 73 0 2 2 34 2.93 73.2 59 26 24 11 24 96 0 0 1.13 .291 3.47 1.3 148
2019 Seattle - MLB 31 63 0 3 11 15 5.69 74.1 83 48 47 19 31 93 0 0 1.53 .344 5.34 -0.6 79
2020 Seattle - MLB 32 14 0 0 1 3 4.08 17.2 13 8 8 3 11 20 0 0 1.36 .244 4.62 0.0 108
2020 Boston - MLB 32 72 0 5 2 5 2.93 70.2 56 24 23 4 17 90 0 0 1.03 .313 2.10 2.3 154
2020 Total - MLB 32 86 0 5 3 8 3.16 88.1 69 32 31 7 28 110 0 0 1.10 .300 2.60 2.4 141
2021 Boston - MLB 33 84 0 3 3 5 3.09 84.1 77 32 29 7 29 111 0 0 1.26 .337 2.89 2.0 145
2022 Houston - MLB 34 44 0 0 2 3 3.28 35.2 35 14 13 4 11 45 0 0 1.29 .348 2.93 0.9 138
2022 Cincinnati - MLB 34 38 0 0 7 12 4.14 37.0 40 17 17 4 19 46 0 0 1.59 .379 3.70 0.7 108
2022 Total - MLB 34 82 0 0 9 15 3.72 72.2 75 31 30 8 30 91 0 0 1.44 .364 3.32 1.7 120
2023 Cincinnati - MLB 35 45 0 2 4 20 3.95 41.0 30 22 18 3 11 59 0 0 1.00 .297 2.25 1.7 114
2023 Boston - MLB 35 24 0 2 3 3 10.20 15.0 24 19 17 6 3 18 0 0 1.80 .400 6.70 -0.4 45
2023 Total - MLB 35 69 0 4 7 23 5.63 56.0 54 41 35 9 14 77 0 0 1.21 .331 3.44 1.2 80
2024 Boston - MLB 36 70 6 2 2 1 4.19 58.0 53 35 27 10 18 74 0 0 1.22 .301 4.00 0.6 106
2025 Boston - MLB 37 44 0 4 1 0 3.19 36.2 28 13 13 4 10 30 0 0 1.04 .233 3.74 0.3 128
Total MLB 1045 6 47 51 331 3.05 1021.0 788 370 346 110 310 1423 0 0 1.08 .300 2.78 23.1 167
CAREER MINOR LEAGUE PITCHING STATS
Year/Team/League Age G GS W L SV ERA IP HA R ER HR BB K CG SHO WHIP BABIP FIP WAR ERA+
2009 Inland Empire - A+ 21 12 0 0 0 0 4.63 11.2 14 6 6 1 11 19 0 0 2.14 .481 3.89 0.1 86
2015 Rancho Cucamonga - A+ 27 6 5 0 1 0 5.06 5.1 6 3 3 1 1 8 0 0 1.31 .455 3.20 0.1 79
2026 Lakeland - A+ 38 4 0 0 1 1 2.45 3.2 5 1 1 0 0 2 0 0 1.36 .333 2.29 0.1 152
2026 Erie - AA 38 47 0 1 4 27 2.72 39.2 41 15 12 2 8 27 0 0 1.24 .295 3.77 0.6 160
Total EL 47 0 1 4 27 2.72 39.2 41 15 12 2 8 27 0 0 1.24 .295 3.77 160.4
Total CAL 18 5 0 1 0 4.76 17.0 20 9 9 2 12 27 0 0 1.88 .474 3.67 83.6
Total FSL 4 0 0 1 1 2.45 3.2 5 1 1 0 0 2 0 0 1.36 .333 2.29 151.8
CAREER POSTSEASON PITCHING STATS
Year/Team/League Age G GS W L SV ERA IP HA R ER HR BB K CG SHO WHIP BABIP FIP WAR ERA+
2013 Los Angeles - MLB 25 6 0 0 0 2 4.15 4.1 6 2 2 0 1 10 0 0 1.62 .667 0.00 0.0 0
2014 Los Angeles - MLB 26 1 0 0 0 1 0.00 1.0 0 0 0 0 0 2 0 0 0.00 .000 0.00 0.0 0
2015 Los Angeles - MLB 27 3 0 0 0 2 0.00 3.0 1 0 0 0 3 4 0 0 1.33 .167 0.00 0.0 0
2016 Los Angeles - MLB 28 7 0 0 0 3 3.09 11.2 5 4 4 1 5 19 0 0 0.86 .000 0.00 0.0 0
2017 Los Angeles - MLB 29 13 0 1 1 5 1.62 16.2 8 4 3 2 3 20 0 0 0.66 .000 0.00 0.0 0
2020 Boston - MLB 32 1 0 0 0 0 0.00 0.2 1 0 0 0 1 2 0 0 3.00 1.000 0.00 0.0 0
2022 Cincinnati - MLB 34 11 0 0 1 3 3.00 9.0 7 3 3 1 3 14 0 0 1.11 .300 0.00 0.0 0
2023 Boston - MLB 35 1 0 0 0 0 27.00 0.1 2 1 1 0 0 0 0 0 6.00 .667 0.00 0.0 0
2024 Boston - MLB 36 1 0 0 0 0 0.00 0.1 1 0 0 0 0 0 0 0 3.00 .500 0.00 0.0 0
2025 Boston - MLB 37 1 0 0 0 0 0.00 1.1 0 0 0 0 0 2 0 0 0.00 .000 0.00 0.0 0
Total MLB 45 0 1 2 16 2.42 48.1 31 14 13 4 16 73 0 0 0.97 .871 2.43 289.2
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2010 Los Angeles - MLB P 25 0 1 1 0 2 0 1.000 27.0 0.67 -0.1 .000
2011 Los Angeles - MLB P 51 0 2 3 1 5 0 1.000 53.2 0.84 -0.2 .000
2012 Los Angeles - MLB P 65 0 1 5 0 7 1 .857 65.0 0.83 -0.4 .000
2013 Los Angeles - MLB P 75 0 3 1 0 4 0 1.000 76.2 0.47 -0.3 .000
2014 Los Angeles - MLB P 68 0 6 2 1 9 1 .889 65.1 1.10 -0.3 .000
2015 Los Angeles - MLB P 54 0 0 2 0 3 1 .667 52.1 0.34 -0.7 .000
2016 Los Angeles - MLB P 71 0 3 1 0 5 1 .800 68.2 0.52 -0.2 .000
2017 Los Angeles - MLB P 65 0 4 1 0 5 0 1.000 68.1 0.66 -0.2 .000
2018 Seattle - MLB P 71 0 3 4 1 7 0 1.000 73.2 0.86 -0.1 1.034
2019 Seattle - MLB P 63 0 1 11 3 13 1 .923 74.1 1.45 -0.4 .948
2020 Seattle - MLB P 14 0 0 4 0 4 0 1.000 17.2 2.04 +0.5 2.061
2020 Boston - MLB P 69 0 5 3 0 9 1 .889 70.2 1.02 -0.2 1.030
2021 Boston - MLB P 84 0 2 8 1 10 0 1.000 84.1 1.07 -0.3 1.031
2022 Houston - MLB P 43 0 1 7 0 8 0 1.000 35.2 2.02 +0.4 1.203
2022 Cincinnati - MLB P 36 0 0 6 0 6 0 1.000 37.0 1.46 -0.2 1.032
2023 Cincinnati - MLB P 43 0 0 7 0 7 0 1.000 41.0 1.54 -0.3 .900
2023 Boston - MLB P 22 0 0 6 0 8 2 .750 15.0 3.60 -0.1 .857
2023 Cincinnati - MLB CF 1 0 1 0 0 1 0 1.000 0.2 13.50 +0.1 .997
2024 Boston - MLB P 66 6 2 4 0 6 0 1.000 58.0 0.93 -0.1 1.042
2025 Boston - MLB P 40 0 0 4 0 4 0 1.000 36.2 0.98 -0.0 1.034
2026 Erie - AA P 45 0 2 7 0 11 2 .818 39.2 2.04 -0.4 .924
2026 Lakeland - A+ P 4 0 0 1 0 1 0 1.000 3.2 2.45 +0.0 1.014
TOTAL P 1074 6 36 88 7 134 10 .925 1064.1 1.05 -3.6 1.019
TOTAL CF 1 0 1 0 0 1 0 1.000 0.2 13.50 +0.1 .997
PLAYER HISTORY
11/17/2004 Signed as an international free agent with the Los Angeles Dodgers.
07/12/2016 Selected to the 2016 MLB All-Star Game.
10/29/2016 Voted the 2016 MLB NL Hoffman Reliever of the Year.
11/03/2016 Became a free agent.
01/10/2017 Signed as a free agent with the Los Angeles Dodgers.
07/02/2017 Was selected to the 2017 Major League Baseball All-Star Game.
10/28/2017 Wins the 2017 Trevor Hoffman NL Reliever of the Year Award.
03/27/2018 Drafted in the 2018 inaugural draft (Round 8, Pick 7, 217th overall pick) by the Seattle Mariners.
07/15/2018 Was selected to the 2018 Major League Baseball All-Star Game.
01/01/2019 OSA scouting updated ratings (potential): Stuff: 80 (80); Movement: 55 (55); Control: 65 (65).
07/29/2019 Injured (Sore shoulder), day-to-day for 3 days.
01/01/2020 OSA scouting updated ratings (potential): Stuff: 80 (80); Movement: 55 (55); Control: 65 (65).
05/04/2020 Was traded by the Seattle Mariners to the Boston Red Sox, along with RP Mark Melancon, in exchange for C Mario Feliciano, SP Zach Rasberry, RF Jimmy Herron, SP Michael Burrows.
10/10/2020 Injured (Shoulder inflammation), out for 2-3 weeks.
11/03/2020 Finished 3rd in 2020 MLB AL Reliever of the Year voting.
01/01/2021 OSA scouting updated ratings (potential): Stuff: 80 (80); Movement: 55 (55); Control: 60 (60).
05/07/2021 Signed a 2-year contract extension worth a total of $21,000,000 with the Boston Red Sox organization.
05/22/2021 Injured (Forearm cramp), day-to-day for 3 days.
07/16/2021 Was selected to the 2021 Major League Baseball All-Star Game.
12/07/2021 Was traded by the Boston Red Sox to the Houston Astros, along with RF Aaron Judge, in exchange for CL Joe Lyons, SP Luis Gallegos, RF Josh Brewer, SP Tommy Mace, SP Lance McCullers Jr..
01/01/2022 OSA scouting updated ratings (potential): Stuff: 75 (80); Movement: 55 (55); Control: 65 (65).
06/27/2022 Was traded by the Houston Astros to the Cincinnati Reds in exchange for SP Juan Trujillo, SP Luis Moralez, 3B Bryce Reagan.
07/04/2022 Signed a 3-year contract extension worth a total of $27,000,000 with the Cincinnati Reds organization.
07/24/2022 Earns his 300th career Major League Baseball save!
01/01/2023 OSA scouting updated ratings (potential): Stuff: 75 (80); Movement: 55 (60); Control: 60 (60).
07/30/2023 Was traded by the Cincinnati Reds to the Boston Red Sox in exchange for RF Kevin Corn, SS Teagan Peckford.
01/01/2024 OSA scouting updated ratings (potential): Stuff: 70 (75); Movement: 60 (60); Control: 65 (65).
01/01/2025 OSA scouting updated ratings (potential): Stuff: 60 (70); Movement: 60 (60); Control: 60 (65).
11/30/2025 Became a free agent.
01/01/2026 OSA scouting updated ratings (potential): Stuff: 50 (65); Movement: 60 (60); Control: 60 (65).
02/20/2026 Signed a minor league contract with the Detroit Tigers organization.
04/21/2026 Injured (Sprained ankle), day-to-day for 5 days.
LEADERBOARD APPEARANCES
Year G Rank
2013 75 4
2020 86 4
2021 84 4
Year SV Rank
2012 25 10
2014 44 3
2015 36 7
2016 47 2
2017 41 1
2018 34 6
Year HLD Rank
2020 23 4
2021 29 1
Year RA Rank
2020 86 4
2021 84 4
Year GF Rank
2018 60 5
2019 51 4
Monday, January 20th, 2020 - OOTP Baseball 20.8 Build 74