Kenley Jansen played in Major League Baseball from 2010 to 2024, appearing in 871 games over 15 seasons. He recorded a total of 49 W and 36 L, an ERA of 2.57, 1,221 SO, a WHIP of 0.963, and a WAR of 21.8.
🧾 Basic Profile
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Name | Kenley Jansen |
Date of Birth | September 30, 1987 |
Nationality | ![]() |
MLB Debut | 2010 |
📊 Career Summary
Kenley Jansen appeared in 871 games over 15 MLB seasons from 2010 to 2024. Below are his cumulative stats and MLB all-time rankings:
GS | 0 (MLB Rank: 7,909) |
GF | 653 (MLB Rank: 11) |
W | 49 (MLB Rank: 1,478) |
L | 36 (MLB Rank: 2,092) |
SV | 447 (MLB Rank: 4) |
ERA | 2.57 (MLB Rank: 899) |
IP | 868.1 (MLB Rank: 1,519) |
SO | 1,221 (MLB Rank: 375) |
BB | 263 (MLB Rank: 1,857) |
H | 573 (MLB Rank: 2,261) |
HR | 80 (MLB Rank: 1,255) |
SO9 | 12.66 (MLB Rank: 124) |
BB9 | 2.73 (MLB Rank: 9,217) |
H9 | 5.94 (MLB Rank: 11,269) |
HR9 | 0.83 (MLB Rank: 5,172) |
WHIP | 0.963 (MLB Rank: 11,456) |
WAR | 21.8 (MLB Rank: 500) |
📊 Last Season Summary (2024)
In his final season (2024), Kenley Jansen recorded the following stats:
GS | 0 |
GF | 38 |
W | 4 |
L | 2 |
SV | 27 |
ERA | 3.29 |
IP | 54.2 |
SO | 62 |
BB | 20 |
H | 38 |
HR | 4 |
SO9 | 10.21 |
BB9 | 3.29 |
H9 | 6.26 |
HR9 | 0.66 |
WHIP | 1.061 |
WAR | 1.3 |
📈 Seasonal Highlights
- Most Wins: 2012, 5 W
- Most SO: 2013, 111 SO
- Most IP: 2013, 76.2 IP
- Best WAR: 2017, 3.0 WAR
- Best ERA: 2010, 0.67 ERA
🎯 Postseason Performance
Kenley Jansen appeared in 59 games during the postseason. He recorded an ERA of 2.29, pitched 63 IP, struck out 94 batters, with 3 W and 2 L.
Kenley Jansen Career Pitching Stats Overview
season | W | L | ERA | W-L% | SV | SO | IP | WAR | WHIP | HR | H | BB | R | ER | ERA+ | FIP | SO9 | SO/BB | GS | G | GF | CG | SHO | HR9 | H9 | BB9 | BK | HBP | IBB | WP | BF |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2010 | 1 | 0 | 0.67 | 1 | 4 | 41 | 27 | 1.4 | 1 | 0 | 12 | 15 | 2 | 2 | 588 | 1.82 | 13.7 | 2.73 | 0 | 25 | 8 | 0 | 0 | 0 | 4 | 5 | 0 | 1 | 1 | 1 | 109 |
2011 | 2 | 1 | 2.85 | 0.667 | 5 | 96 | 53.2 | 0.9 | 1.043 | 3 | 30 | 26 | 17 | 17 | 130 | 1.74 | 16.1 | 3.69 | 0 | 51 | 13 | 0 | 0 | 0.5 | 5 | 4.4 | 2 | 2 | 0 | 0 | 218 |
2012 | 5 | 3 | 2.35 | 0.625 | 25 | 99 | 65 | 1.9 | 0.846 | 6 | 33 | 22 | 18 | 17 | 162 | 2.4 | 13.7 | 4.5 | 0 | 65 | 40 | 0 | 0 | 0.8 | 4.6 | 3 | 0 | 3 | 1 | 3 | 252 |
2013 | 4 | 3 | 1.88 | 0.571 | 28 | 111 | 76.2 | 2.6 | 0.861 | 6 | 48 | 18 | 16 | 16 | 190 | 1.99 | 13 | 6.17 | 0 | 75 | 45 | 0 | 0 | 0.7 | 5.6 | 2.1 | 0 | 3 | 1 | 2 | 292 |
2014 | 2 | 3 | 2.76 | 0.4 | 44 | 101 | 65.1 | 1.2 | 1.133 | 5 | 55 | 19 | 20 | 20 | 127 | 1.91 | 13.9 | 5.32 | 0 | 68 | 57 | 0 | 0 | 0.7 | 7.6 | 2.6 | 0 | 0 | 2 | 2 | 268 |
2015 | 2 | 1 | 2.41 | 0.667 | 36 | 80 | 52.1 | 1.4 | 0.783 | 6 | 33 | 8 | 14 | 14 | 154 | 2.14 | 13.8 | 10 | 0 | 54 | 50 | 0 | 0 | 1 | 5.7 | 1.4 | 0 | 2 | 0 | 0 | 200 |
2016 | 3 | 2 | 1.83 | 0.6 | 47 | 104 | 68.2 | 2.8 | 0.67 | 4 | 35 | 11 | 14 | 14 | 219 | 1.44 | 13.6 | 9.45 | 0 | 71 | 63 | 0 | 0 | 0.5 | 4.6 | 1.4 | 0 | 2 | 2 | 1 | 251 |
2017 | 5 | 0 | 1.32 | 1 | 41 | 109 | 68.1 | 3 | 0.746 | 5 | 44 | 7 | 11 | 10 | 315 | 1.31 | 14.4 | 15.57 | 0 | 65 | 57 | 0 | 0 | 0.7 | 5.8 | 0.9 | 1 | 2 | 0 | 2 | 258 |
2018 | 1 | 5 | 3.01 | 0.167 | 38 | 82 | 71.2 | 0.6 | 0.991 | 13 | 54 | 17 | 28 | 24 | 129 | 4.03 | 10.3 | 4.82 | 0 | 69 | 59 | 0 | 0 | 1.6 | 6.8 | 2.1 | 2 | 2 | 1 | 0 | 289 |
2019 | 5 | 3 | 3.71 | 0.625 | 33 | 80 | 63 | 0.1 | 1.063 | 9 | 51 | 16 | 28 | 26 | 112 | 3.48 | 11.4 | 5 | 0 | 62 | 51 | 0 | 0 | 1.3 | 7.3 | 2.3 | 3 | 4 | 0 | 2 | 263 |
2020 | 3 | 1 | 3.33 | 0.75 | 11 | 33 | 24.1 | 0.4 | 1.151 | 2 | 19 | 9 | 11 | 9 | 132 | 3.03 | 12.2 | 3.67 | 0 | 27 | 24 | 0 | 0 | 0.7 | 7 | 3.3 | 0 | 3 | 0 | 0 | 102 |
2021 | 4 | 4 | 2.22 | 0.5 | 38 | 86 | 69 | 2.5 | 1.043 | 4 | 36 | 36 | 21 | 17 | 191 | 3.08 | 11.2 | 2.39 | 0 | 69 | 52 | 0 | 0 | 0.5 | 4.7 | 4.7 | 2 | 2 | 4 | 4 | 278 |
2022 | 5 | 2 | 3.38 | 0.714 | 41 | 85 | 64 | 1 | 1.047 | 8 | 45 | 22 | 25 | 24 | 122 | 3.21 | 12 | 3.86 | 0 | 65 | 54 | 0 | 0 | 1.1 | 6.3 | 3.1 | 1 | 2 | 3 | 1 | 260 |
2023 | 3 | 6 | 3.63 | 0.333 | 29 | 52 | 44.2 | 0.7 | 1.276 | 5 | 40 | 17 | 21 | 18 | 126 | 3.66 | 10.5 | 3.06 | 0 | 51 | 42 | 0 | 0 | 1 | 8.1 | 3.4 | 2 | 2 | 1 | 1 | 188 |
2024 | 4 | 2 | 3.29 | 0.667 | 27 | 62 | 54.2 | 1.3 | 1.061 | 4 | 38 | 20 | 20 | 20 | 130 | 3 | 10.2 | 3.1 | 0 | 54 | 38 | 0 | 0 | 0.7 | 6.3 | 3.3 | 2 | 1 | 2 | 2 | 218 |