Kenley Jansen

Pitcher · Career Stats, Bio & Records (2010-2026)

Active Player
W–L 58–45
ERA 2.63
WHIP 0.97
SO 1,319
Pitcher PIV 34863.2
Position
Pitcher
Bats / Throws
B / R
Height / Weight
6'5" / 265 lb
Born
9/30/1987 in Willemstad, Curaçao
MLB Debut
2010-07-24
Awards
4× All-Star · 2× Reliever of the Year

Full name: Kenley Geronimo Jansen

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Career Pitching Statistics

W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
58 45 973 0 0 0 493 963.0 632 281 95 302 1,319 2.63 34863.2

Career ERA 2.63 vs. league average 4.12 across their career seasons — 36.2% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
2010 LAN NL 1 0 25 0 0 0 4 27.0 12 2 15 41 0.67 4.08 (+84%) 1534.0
2011 LAN NL 2 1 51 0 0 0 5 53.7 30 17 26 96 2.85 3.94 (+28%) 2988.0
2012 LAN NL 5 3 65 0 0 0 25 65.0 33 17 22 99 2.35 4.01 (+41%) 2654.9
2013 LAN NL 4 3 75 0 0 0 28 76.7 48 16 18 111 1.88 3.87 (+51%) 3648.8
2014 LAN NL 2 3 68 0 0 0 44 65.3 55 20 19 101 2.76 3.74 (+26%) 3033.9
2015 LAN NL 2 1 54 0 0 0 36 52.3 33 14 8 80 2.41 3.96 (+39%) 2408.8
2016 LAN NL 3 2 71 0 0 0 47 68.7 35 14 11 104 1.83 4.19 (+56%) 4782.7
2017 LAN NL 5 0 65 0 0 0 41 68.3 44 10 7 109 1.32 4.36 (+70%) 5273.7
2018 LAN NL 1 5 69 0 0 0 38 71.7 54 24 17 82 3.01 4.15 (+27%) 223.8
2019 LAN NL 5 3 62 0 0 0 33 63.0 51 26 16 80 3.71 4.51 (+18%) 1629.1
2020 LAN NL 3 1 27 0 0 0 11 24.3 19 9 9 33 3.33 4.45 (+25%) 872.0
2021 LAN NL 4 4 69 0 0 0 38 69.0 36 17 36 86 2.22 4.27 (+48%) 2068.7
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 4.16 (+38%) 262.6
2026 DET AL 4 5 40 0 0 0 17 35.7 22 16 20 41 4.04 4.16 (+3%) -
Career · 17 seasons 58 45 973 0 0 0 493 963.0 632 281 302 1,319 2.63 — 34,863

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

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 .333 .400 .444 .844 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 .844 vs. league average .726 across their career seasons — +16.4% above league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

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 LAN NL 26 1 1 1 0 0 0 0 0 1 0 1.000 — — — — 0.0
2011 LAN NL 51 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2012 LAN NL 65 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2013 LAN NL 75 1 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2014 LAN NL 68 1 0 0 0 0 0 0 0 0 1 .000 — — — — 0.0
2015 LAN NL 54 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2016 LAN NL 72 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2017 LAN NL 65 4 0 2 1 0 0 1 0 0 0 .500 — — — — 0.0
2018 LAN NL 69 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2019 LAN NL 62 1 0 0 0 0 0 0 0 0 1 .000 — — — — 0.0
2020 LAN NL 27 0 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
2021 LAN NL 69 1 0 0 0 0 0 0 0 0 1 .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
Career · 16 seasons 935 9 1 3 1 0 0 1 0 1 3 .333 — — — — 0

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

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 .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 .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 .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

Game Log & Splits

View full game log (1866 games) →

Per-game data from Retrosheet (regular season, through 2025).

Batting — Home / Away

SplitGABRHHRRBIAVG
Home49750301.600
Away43741000.000

Pitching — Home / Away

SplitGIPHERBBSOERA
Home496493.23221431386722.61
Away436432.22861201446042.50

Last 10 Games — Pitching

DateTmOppDecIPHRERBBSOHR
2025-09-26 LAAHOU SV 1.0000030
2025-09-24 LAAKCR SV 1.0000020
2025-09-18 LAAMIL — 1.0000000
2025-09-11 LAASEA — 1.0000100
2025-09-10 LAAMIN SV 1.0000020
2025-09-07 LAAOAK SV 1.0000000
2025-09-02 LAAKCR — 1.0000120
2025-08-31 LAAHOU SV 1.0000000
2025-08-30 LAAHOU SV 1.0000100
2025-08-25 LAATEX — 1.0000000

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 Diamond

Circle size = games played at each 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

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

Most Similar Players

Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.

  1. 98
    Billy Wagner HOF
    47-40, 2.31 ERA
  2. 80
    Craig Kimbrel
    57-50, 2.65 ERA
  3. 53
    Francisco Rodriguez
    52-53, 2.86 ERA
  4. 49
    Trevor Hoffman HOF
    61-75, 2.87 ERA
  5. 48
    Jonathan Papelbon
    41-36, 2.44 ERA
  6. 43
    Joe Nathan
    64-34, 2.87 ERA

Compare Kenley Jansen

Side-by-side career stat comparisons against Jansen's closest peers by position and era.

vs Clayton Kershaw
vs Mariano Rivera
vs Dennis Eckersley
vs Hoyt Wilhelm
vs Billy Wagner
vs Trevor Hoffman

Browse all MLB player comparisons →

Frequently Asked Questions about Kenley Jansen

What years did Kenley Jansen play?
Kenley Jansen played in Major League Baseball from 2010 to 2026.
Was Kenley Jansen a pitcher?
Yes. Kenley Jansen pitched in the major leagues, recording 58 wins and 1319 strikeouts.
How many home runs did Kenley Jansen hit?
Kenley Jansen hit 0 career home runs with 3 hits.