Players · J · Pitcher · 2026 regular season
Kenley Jansen
- Age
- 39
- B/T
- S/R
- Height
- 6' 5"
- Weight
- 265 lb
- Number
- #74
- Born
- September 30, 1987 in Willemstad, Curaçao
- MLB debut
- July 24, 2010
- Salary, 2026
- $9M
Compare with…vs Jovani Moránvs Seranthony Domínguezvs Lake Bachar
- dbWAR
- 21.6 Regular season, 23 season(s)
- IP
- 45.0
- ERA
- 3.20
- FIP
- 4.46
- K/9
- 10.2
- FIP−
- 107 100 = avg
Kenley Jansen is a relief pitcher for the Detroit Tigers. In 2026 he struck out 51 batters over 45.0 innings across 50 appearances, going 4-6. His ERA of 3.20 was 23.5% lower than the league average of 4.18 — 6th of 20 on his team, and 121st of 539 among MLB pitchers with 20+ innings. Stripping out defence, his 4.46 FIP suggests that his ERA had some help behind him. He missed bats on 26.6% of swings (13.0% of every pitch he threw), walked 12.8% of the batters he faced and struck out 28.3%. His 0.1 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.
League context
Percentile among qualified pitchers, 2026 regular season.
WAR by season
Pitching Regular season
Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | DET | 50 | 0 | 45.0 | 4 | 6 | 22 | 24 | 16 | 51 | 23 | 3.20 | 4.46 | 1.04 | 10.2 | 4.6 | 77 | 107 | 0.1 | |
| 2025 | LAA | 62 | 0 | 59.0 | 5 | 4 | 29 | 37 | 17 | 57 | 19 | 2.59 | 3.98 | 0.95 | 8.7 | 2.9 | 62 | 96 | 0.5 | |
| 2024 | BOS | 54 | 0 | 54.2 | 4 | 2 | 27 | 38 | 20 | 62 | 20 | 3.29 | 3.00 | 1.06 | 10.2 | 3.3 | 81 | 74 | 1.0 | |
| 2023 | BOS | 51 | 0 | 44.2 | 3 | 6 | 29 | 40 | 18 | 52 | 17 | 3.63 | 3.66 | 1.28 | 10.5 | 3.4 | 84 | 84 | 0.7 | |
| 2022 | ATL | 65 | 0 | 64.0 | 5 | 2 | 41 | 45 | 24 | 85 | 22 | 3.38 | 3.21 | 1.05 | 12.0 | 3.1 | 85 | 81 | 0.9 | |
| 2021 | LAD | 69 | 0 | 69.0 | 4 | 4 | 38 | 36 | 17 | 86 | 36 | 2.22 | 3.08 | 1.04 | 11.2 | 4.7 | 52 | 72 | 1.3 | |
| 2020 | LAD | 27 | 0 | 24.1 | 3 | 1 | 11 | 19 | 9 | 33 | 9 | 3.33 | 3.03 | 1.15 | 12.2 | 3.3 | 75 | 68 | 0.5 | |
| 2019 | LAD | 62 | 0 | 63.0 | 5 | 3 | 33 | 51 | 26 | 80 | 16 | 3.71 | 3.48 | 1.06 | 11.4 | 2.3 | 82 | 77 | 1.0 | |
| 2018 | LAD | 69 | 0 | 71.2 | 1 | 5 | 38 | 54 | 24 | 82 | 17 | 3.01 | 4.03 | 0.99 | 10.3 | 2.1 | 73 | 97 | 0.5 | |
| 2017 | LAD | 65 | 0 | 68.1 | 5 | 0 | 41 | 44 | 10 | 109 | 7 | 1.32 | 1.31 | 0.75 | 14.4 | 0.9 | 30 | 30 | 2.7 | |
| 2016 | LAD | 72 | 0 | 68.2 | 3 | 2 | 47 | 35 | 14 | 104 | 11 | 1.83 | 1.44 | 0.67 | 13.6 | 1.4 | 44 | 34 | 2.5 | |
| 2015 | LAD | 54 | 0 | 52.1 | 2 | 1 | 36 | 33 | 14 | 80 | 8 | 2.41 | 2.14 | 0.78 | 13.8 | 1.4 | 61 | 54 | 1.4 | |
| 2014 | LAD | 68 | 0 | 65.1 | 2 | 3 | 44 | 55 | 20 | 101 | 19 | 2.76 | 1.91 | 1.13 | 13.9 | 2.6 | 74 | 51 | 1.8 | |
| 2013 | LAD | 75 | 0 | 76.2 | 4 | 3 | 28 | 48 | 16 | 111 | 18 | 1.88 | 1.99 | 0.86 | 13.0 | 2.1 | 49 | 52 | 2.1 | |
| 2012 | LAD | 65 | 0 | 65.0 | 5 | 3 | 25 | 33 | 17 | 99 | 22 | 2.35 | 2.40 | 0.85 | 13.7 | 3.0 | 59 | 60 | 1.6 | |
| 2011 | LAD | 51 | 0 | 53.2 | 2 | 1 | 5 | 30 | 17 | 96 | 26 | 2.85 | 1.74 | 1.04 | 16.1 | 4.4 | 72 | 44 | 1.7 | |
| 2010 | LAD | 25 | 0 | 27.0 | 1 | 0 | 4 | 12 | 2 | 41 | 15 | 0.67 | 1.82 | 1.00 | 13.7 | 5.0 | 16 | 45 | 0.9 |
Batting Regular season
Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.
| Trend | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | LAD | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 | — | 0.0% | 100.0% | .000 | -0.3 | -122 | -0.0 | |
| 2019 | LAD | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 | — | 0.0% | 100.0% | .000 | -0.3 | -122 | -0.0 | |
| 2017 | LAD | 4 | 4 | 2 | 0 | 1 | 0 | 0 | 0 | .500 | .500 | .750 | .250 | .500 | 0.0% | 0.0% | .536 | +0.7 | 247 | 0.1 | |
| 2014 | LAD | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 | — | 0.0% | 100.0% | .000 | -0.2 | -125 | -0.0 | |
| 2013 | LAD | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | 0.0% | 0.0% | .000 | -0.2 | -127 | -0.0 | |
| 2010 | LAD | 2 | 2 | 1 | 0 | 0 | 0 | 1 | 0 | 1.000 | 1.000 | 1.000 | .000 | 1.000 | 50.0% | 0.0% | .808 | +0.8 | 441 | 0.1 |
Separate from the regular season
Postseason Postseason
Wild Card through World Series. These games are counted on their own: none of them are in the regular-season tables, career totals, league context, leaderboards or dbWAR on this page.
Postseason pitching
| Season | Team | Round | G | GS | IP | W | L | SV | H | ER | HR | BB | SO | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 Post | ATL | NLDS | 2 | 0 | 2.0 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 2 | 4.50 | 0.50 | 9.0 |
| 2021 Post | LAD | Postseason total | 8 | 0 | 7.0 | 2 | 0 | 1 | 3 | 0 | 0 | 1 | 14 | 0.00 | 0.57 | 18.0 |
| Wild Card | 1 | 0 | 1.0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | 0.00 | 1.00 | 27.0 | ||
| NLDS | 2 | 0 | 2.0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0.00 | 0.00 | 22.5 | ||
| NLCS | 5 | 0 | 4.0 | 0 | 0 | 1 | 2 | 0 | 0 | 1 | 6 | 0.00 | 0.75 | 13.5 | ||
| 2020 Post | LAD | Postseason total | 8 | 0 | 7.0 | 0 | 1 | 2 | 6 | 4 | 1 | 2 | 8 | 5.14 | 1.14 | 10.3 |
| Wild Card | 1 | 0 | 1.0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0.00 | 1.00 | 9.0 | ||
| NLDS | 2 | 0 | 1.1 | 0 | 0 | 0 | 3 | 2 | 0 | 0 | 2 | 13.50 | 2.25 | 13.5 | ||
| NLCS | 3 | 0 | 3.0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 0.00 | 0.00 | 9.0 | ||
| World Series | 2 | 0 | 1.2 | 0 | 1 | 0 | 3 | 2 | 1 | 1 | 2 | 10.80 | 2.40 | 10.8 | ||
| 2019 Post | LAD | NLDS | 2 | 0 | 1.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.00 | 0.00 | 10.8 |
| 2018 Post | LAD | Postseason total | 9 | 0 | 10.2 | 0 | 0 | 3 | 4 | 2 | 2 | 3 | 13 | 1.69 | 0.66 | 11.0 |
| NLDS | 2 | 0 | 2.0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 3 | 0.00 | 0.50 | 13.5 | ||
| NLCS | 4 | 0 | 4.2 | 0 | 0 | 2 | 1 | 0 | 0 | 2 | 7 | 0.00 | 0.64 | 13.5 | ||
| World Series | 3 | 0 | 4.0 | 0 | 0 | 0 | 2 | 2 | 2 | 1 | 3 | 4.50 | 0.75 | 6.8 | ||
| 2017 Post | LAD | Postseason total | 13 | 0 | 16.2 | 1 | 1 | 5 | 8 | 3 | 2 | 3 | 20 | 1.62 | 0.66 | 10.8 |
| NLDS | 3 | 0 | 3.2 | 0 | 0 | 2 | 2 | 0 | 0 | 1 | 4 | 0.00 | 0.82 | 9.8 | ||
| NLCS | 4 | 0 | 4.1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 8 | 0.00 | 0.00 | 16.6 | ||
| World Series | 6 | 0 | 8.2 | 0 | 1 | 2 | 6 | 3 | 2 | 2 | 8 | 3.12 | 0.92 | 8.3 | ||
| 2016 Post | LAD | Postseason total | 7 | 0 | 11.2 | 0 | 0 | 3 | 5 | 4 | 1 | 5 | 19 | 3.09 | 0.86 | 14.7 |
| NLDS | 4 | 0 | 5.1 | 0 | 0 | 2 | 4 | 4 | 1 | 5 | 9 | 6.75 | 1.69 | 15.2 | ||
| NLCS | 3 | 0 | 6.1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 10 | 0.00 | 0.16 | 14.2 | ||
| 2015 Post | LAD | NLDS | 3 | 0 | 3.1 | 0 | 0 | 2 | 1 | 0 | 0 | 3 | 4 | 0.00 | 1.20 | 10.8 |
| 2014 Post | LAD | NLDS | 1 | 0 | 1.0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0.00 | 0.00 | 18.0 |
| 2013 Post | LAD | Postseason total | 6 | 0 | 4.1 | 0 | 0 | 2 | 6 | 2 | 0 | 1 | 10 | 4.15 | 1.62 | 20.8 |
| NLDS | 3 | 0 | 2.1 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 7 | 0.00 | 0.86 | 27.0 | ||
| NLCS | 3 | 0 | 2.0 | 0 | 0 | 1 | 5 | 2 | 0 | 0 | 3 | 9.00 | 2.50 | 13.5 | ||
| Career | Postseason total · 10 Octobers | 59 | 0 | 65.1 | 3 | 2 | 20 | 34 | 16 | 7 | 18 | 94 | 2.20 | 0.80 | 12.9 |
Postseason batting
| Season | Team | Round | G | PA | AB | R | H | 2B | 3B | HR | RBI | BB | SO | SB | AVG | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017 Post | LAD | NLDS | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .000 | .000 | .000 | .000 |
| 2016 Post | LAD | NLDS | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .000 | .000 | .000 | .000 |
| Career | Postseason total · 2 Octobers | 3 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .000 | .000 | .000 | .000 |
Box-score and rate statistics only. wOBA, wRC+, FIP and dbWAR are measured against a full league season, and a postseason is a few teams playing each other for a month, so they are not computed for October.
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 100 | 83 | 10 | 4 | 17 | 30 | .120 | .270 | .277 | .257 | 30.0% |
| vs RHB | 80 | 71 | 14 | 3 | 6 | 21 | .197 | .263 | .338 | .267 | 26.3% |
Pitch sequencing
What Kenley Jansen throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Kenley Jansen throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Cutter | 600 | 92.5 | 2,660 | 51.2% | 24.9% | 114 | .167 | .610 | |
| Slider | 76 | 84.5 | 2,515 | 44.7% | 35.0% | 21 | .095 | .269 | |
| Sinker | 49 | 93.9 | 2,360 | 49.0% | 31.0% | 19 | .158 | .624 |
Compare Kenley Jansen with…
Side by side with up to three others.
Or read one already written — Kenley Jansen against:
- Jovani Moránsimilar 2026 seasons
- Seranthony Domínguezsimilar 2026 seasons
- Lake Bacharsimilar 2026 seasons
- Julian Garciasimilar 2026 seasons
- Luke Weaversimilar 2025 seasons
- Eduard Bazardosimilar 2025 seasons
- Pete Fairbankssimilar 2025 seasons
- Justin Sternersimilar 2025 seasons
- Jacob Webbsimilar 2025 seasons
- AJ Blubaughsimilar 2025 seasons
- Troy Meltonsimilar 2025 seasons
Similar players
Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.
wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.