Kenley Jansen, baseball player, 2010

Kenley Jansen

Active Player

Born: 9/30/1987 in Willemstad, Curaçao

MLB Debut: 2010-07-24

Bats: B | Throws: R | Height: 6'5" | Weight: 265 lbs

Full name: Kenley Geronimo Jansen

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Biography

Kenley Jansen, born in 1987, is an active professional baseball player known for his exceptional skills as a pitcher. Since making his Major League Baseball debut on July 24, 2010, Jansen has established himself as one of the premier closers in the game. With a career record of 49-36 and an impressive earned run average (ERA) of 2.57, he has demonstrated remarkable consistency and effectiveness on the mound. Jansen has recorded 1,221 strikeouts and amassed 447 saves, solidifying his reputation as a dominant force in high-pressure situations. Throughout his career, Jansen has earned four All-Star selections, showcasing his status among the elite pitchers in the league. His ability to close out games with poise and confidence makes him a key asset to his team. As he continues to compete at the highest level, Jansen's legacy is being built in an era characterized by advanced analytics and an emphasis on strikeout rates, where his overpowering fastball and deft slider have made him a potent threat against hitters. His contributions not only highlight his individual talent but also reflect the evolution of the closer role in modern baseball.

Career Pitching Statistics

W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
54 40 940 0 0 0 481 933.0 614 266 89 283 1285 2.57 0

Career ERA 2.57 vs. league average 4.11 across their career seasons — 37.6% better than league average.

Season-by-Season Pitching

Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
2010 LAD NL 1 0 25 0 0 0 4 27.0 12 2 15 41 0.67 4.08 (+84%) -
2011 LAD NL 2 1 51 0 0 0 5 53.7 30 17 26 96 2.85 3.94 (+28%) -
2012 LAD NL 5 3 65 0 0 0 25 65.0 33 17 22 99 2.35 4.01 (+41%) -
2013 LAD NL 4 3 75 0 0 0 28 76.7 48 16 18 111 1.88 3.87 (+51%) -
2014 LAD NL 2 3 68 0 0 0 44 65.3 55 20 19 101 2.76 3.74 (+26%) -
2015 LAD NL 2 1 54 0 0 0 36 52.3 33 14 8 80 2.41 3.96 (+39%) -
2016 LAD NL 3 2 71 0 0 0 47 68.7 35 14 11 104 1.83 4.19 (+56%) -
2017 LAD NL 5 0 65 0 0 0 41 68.3 44 10 7 109 1.32 4.36 (+70%) -
2018 LAD NL 1 5 69 0 0 0 38 71.7 54 24 17 82 3.01 4.15 (+27%) -
2019 LAD NL 5 3 62 0 0 0 33 63.0 51 26 16 80 3.71 4.51 (+18%) -
2020 LAD NL 3 1 27 0 0 0 11 24.3 19 9 9 33 3.33 4.45 (+25%) -
2021 LAD NL 4 4 69 0 0 0 38 69.0 36 17 36 86 2.22 4.27 (+48%) -
2022 ATL NL 5 2 65 0 0 0 41 64.0 45 24 22 85 3.38 3.97 (+15%) 1235.5
2023 BOS AL 3 6 51 0 0 0 29 44.7 40 18 17 52 3.63 4.33 (+16%) 759.2
2024 BOS AL 4 2 54 0 0 0 27 54.7 38 20 20 62 3.29 4.08 (+19%) 1487.4
2025 LAA AL 5 4 62 0 0 0 29 59.0 37 17 19 57 2.59 4.14 (+37%) 262.6
2026 DET AL 0 0 7 0 0 0 5 5.7 4 1 1 7 1.59 — -

Career Batting Statistics

G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
935 9 1 3 1 0 0 1 0 1 3 0.333 0.400 0.444 0.844 0.0

Career AVG .333 vs. league average .251 across their career seasons — +33.0% above league average.

Career OBP .400 vs. league average .318 across their career seasons — +25.6% above league average.

Career SLG .444 vs. league average .407 across their career seasons — +9.1% above league average.

Career OPS 0.844 vs. league average 0.726 across their career seasons — +16.4% above league average.

Season-by-Season Batting

Year Team Lg G AB R H 2B 3B HR RBI SB BB SO AVG Lg AVG Lg OBP Lg SLG Lg OPS PIV
2010 LAD NL 26 1 1 1 0 0 0 0 0 1 0 1.000 — — — — 0.0
2011 LAD NL 51 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2012 LAD NL 65 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2013 LAD NL 75 1 0 0 0 0 0 0 0 0 0 0.000 — — — — 0.0
2014 LAD NL 68 1 0 0 0 0 0 0 0 0 1 0.000 — — — — 0.0
2015 LAD NL 54 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2016 LAD NL 72 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2017 LAD NL 65 4 0 2 1 0 0 1 0 0 0 0.500 — — — — 0.0
2018 LAD NL 69 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2019 LAD NL 62 1 0 0 0 0 0 0 0 0 1 0.000 — — — — 0.0
2020 LAD NL 27 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2021 LAD NL 69 1 0 0 0 0 0 0 0 0 1 0.000 — — — — 0.0
2022 ATL NL 65 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2023 BOS AL 51 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2024 BOS AL 54 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2025 LAA AL 62 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0

Postseason Statistics

Playoff Career Batting

G AB R H 2B 3B HR RBI BB SO AVG
59 2 0 0 0 0 0 0 0 2 0.000

Playoff Batting by Year

Year Round Team G AB R H 2B 3B HR RBI BB SO AVG
2022 NLDS1 ATL 2 0 0 0 0 0 0 0 0 0 .000
2021 NLCS LAN 5 0 0 0 0 0 0 0 0 0 .000
2021 NLDS2 LAN 2 0 0 0 0 0 0 0 0 0 .000
2021 NLWC LAN 1 0 0 0 0 0 0 0 0 0 .000
2020 NLCS LAN 3 0 0 0 0 0 0 0 0 0 .000
2020 NLDS1 LAN 2 0 0 0 0 0 0 0 0 0 .000
2020 NLWC1 LAN 1 0 0 0 0 0 0 0 0 0 .000
2020 WS LAN 2 0 0 0 0 0 0 0 0 0 .000
2019 NLDS1 LAN 2 0 0 0 0 0 0 0 0 0 .000
2018 NLCS LAN 4 0 0 0 0 0 0 0 0 0 .000
2018 NLDS2 LAN 2 0 0 0 0 0 0 0 0 0 .000
2018 WS LAN 3 0 0 0 0 0 0 0 0 0 .000
2017 NLCS LAN 4 0 0 0 0 0 0 0 0 0 .000
2017 NLDS1 LAN 3 1 0 0 0 0 0 0 0 1 0.000
2017 WS LAN 6 0 0 0 0 0 0 0 0 0 .000
2016 NLCS LAN 3 0 0 0 0 0 0 0 0 0 .000
2016 NLDS2 LAN 4 1 0 0 0 0 0 0 0 1 0.000
2015 NLDS2 LAN 3 0 0 0 0 0 0 0 0 0 .000
2014 NLDS2 LAN 1 0 0 0 0 0 0 0 0 0 .000
2013 NLCS LAN 3 0 0 0 0 0 0 0 0 0 .000
2013 NLDS2 LAN 3 0 0 0 0 0 0 0 0 0 .000

Playoff Career Pitching

W L G GS SV IP H ER BB SO ERA
3 2 59 0 20 65.3 34 16 18 94 2.20

Playoff Pitching by Year

Year Round Team W L G GS SV IP H ER BB SO ERA
2022 NLDS1 ATL 0 0 2 0 1 2.0 1 1 0 2 4.50
2021 NLCS LAN 0 0 5 0 1 4.0 2 0 1 6 0.00
2021 NLDS2 LAN 1 0 2 0 0 2.0 0 0 0 5 0.00
2021 NLWC LAN 1 0 1 0 0 1.0 1 0 0 3 0.00
2020 NLCS LAN 0 0 3 0 1 3.0 0 0 0 3 0.00
2020 NLDS1 LAN 0 0 2 0 0 1.3 3 2 0 2 13.50
2020 NLWC1 LAN 0 0 1 0 1 1.0 0 0 1 1 0.00
2020 WS LAN 0 1 2 0 0 1.7 3 2 1 2 10.80
2019 NLDS1 LAN 0 0 2 0 0 1.7 0 0 0 2 0.00
2018 NLCS LAN 0 0 4 0 2 4.7 1 0 2 7 0.00
2018 NLDS2 LAN 0 0 2 0 1 2.0 1 0 0 3 0.00
2018 WS LAN 0 0 3 0 0 4.0 2 2 1 3 4.50
2017 NLCS LAN 1 0 4 0 1 4.3 0 0 0 8 0.00
2017 NLDS1 LAN 0 0 3 0 2 3.7 2 0 1 4 0.00
2017 WS LAN 0 1 6 0 2 8.7 6 3 2 8 3.12
2016 NLCS LAN 0 0 3 0 1 6.3 1 0 0 10 0.00
2016 NLDS2 LAN 0 0 4 0 2 5.3 4 4 5 9 6.75
2015 NLDS2 LAN 0 0 3 0 2 3.3 1 0 3 4 0.00
2014 NLDS2 LAN 0 0 1 0 1 1.0 0 0 0 2 0.00
2013 NLCS LAN 0 0 3 0 1 2.0 5 2 0 3 9.00
2013 NLDS2 LAN 0 0 3 0 1 2.3 1 0 1 7 0.00

Fielding Statistics

Career Fielding Totals by Position

Position G GS PO A E DP
P 933 0 37 32 6 3

Season-by-Season Fielding

Year Team Pos G GS PO A E DP
2010 LAN P 25 0 1 1 0 0
2011 LAN P 51 0 2 3 0 1
2012 LAN P 65 0 1 5 1 0
2013 LAN P 75 0 3 1 0 0
2014 LAN P 68 0 6 2 1 1
2015 LAN P 54 0 0 2 1 0
2016 LAN P 71 0 3 1 1 0
2017 LAN P 65 0 4 1 0 0
2018 LAN P 69 0 1 4 0 1
2019 LAN P 62 0 7 2 1 0
2020 LAN P 27 0 1 0 0 0
2021 LAN P 69 0 4 2 0 0
2022 ATL P 65 0 1 3 0 0
2023 BOS P 51 0 1 3 0 0
2024 BOS P 54 0 1 1 0 0
2025 LAA P 62 0 1 1 1 0

Career Games by Position

Position Games
Pitcher 934

Awards & Honors

Year Award Notes
2025 Reliever of the Month July
2021 All-MLB Team - Second Team RP
2020 Reliever of the Month July-August
2017 Reliever of the Month June
2017 Reliever of the Year Award
2017 TSN All-Star RP
2017 TSN Reliever of the Year
2016 Reliever of the Year Award
2016 TSN All-Star RP
2016 TSN Reliever of the Year

Featured In Rankings

#8
Top 20 Closers of All Time in History of MLB Baseball
Ranked 8 of 20
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Salary History

Year Team League Salary
2016 LAN NL $10,650,000
2015 LAN NL $7,425,000
2014 LAN NL $4,300,000
2013 LAN NL $512,000
2012 LAN NL $491,000
2011 LAN NL $416,000
Total Career Earnings $23,794,000

Award Voting History

Year Award League Finish Points Won Points Max Votes First
2017 Cy Young Award NL 5th 22.0 210 0
2017 Most Valuable Player NL 15th 8.0 420 0
2011 Rookie of the Year NL 7th 2.0 160 0