Kenley Jansen
36-Year-Old
2024 Stats
W-L
0-0
ERA
2.35
WHIP
1.57
K
12
SV
5
Rest-of-Season Projections
2024 Fantasy Outlook
Jansen recorded his 400th career save last May en route to his 4th All-Star nomination. The veteran closer finished with 29 saves, enough to overtake Craig Kimbrel for the top spot on the active saves leaderboard. Jansen only made 51 appearances, his lowest mark since 2015, as he dealt with various ailments (back, knee, hamstring). Only a bout with COVID required a trip to the IL, though, and Jansen was still able to close out 67.4% of Boston's total saves. While there was concern he would have trouble adjusting to the pitch clock - he was dead last in pitch tempo (18.9 sec) with the bases empty - he only had 3 pitch clock violations all year, all in one game. Jansen also added velocity, averaging 94.3 mph (+2.1% difference from 2022) on his trademark cutter that he threw 78.8% of the time. Jansen is clearly on the downswing of his career - his 1.28 WHIP last season was his worst to date - but expecting another 25+ saves from him is not unreasonable. Read Past Outlooks
Collects fifth save
Jansen struck out the side in a perfect ninth inning Saturday to record his fifth save of the season in a 4-2 win over the Pirates.
ANALYSIS
The veteran right-hander fired nine of 14 pitches for strikes in his most impressive performance so far this season, although he did benefit from a third-strike clock violation by Michael Taylor. It's only the third time in eight appearances that Jansen hasn't issued a walk, and while his 2.35 ERA looks good, it comes with a 1.57 WHIP and 12:8 K:BB over 7.2 innings.
The veteran right-hander fired nine of 14 pitches for strikes in his most impressive performance so far this season, although he did benefit from a third-strike clock violation by Michael Taylor. It's only the third time in eight appearances that Jansen hasn't issued a walk, and while his 2.35 ERA looks good, it comes with a 1.57 WHIP and 12:8 K:BB over 7.2 innings.
Pitching Stats
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2024
2023
2022
2021
2020
2019
2018
2017
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
19
Last 10 Games
19
Last 5 Games
18
How many pitches does Kenley Jansen generally throw?
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100
101-110
111-120
121+
What part of the game does Kenley Jansen generally pitch?
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2022
-1%
BAA vs LHP
2024
-38%
BAA vs RHP
BAA | K | BB | H | HR | ||||
---|---|---|---|---|---|---|---|---|
Since 2022vs Left | .208 | 70 | 24 | 42 | 8 | |||
Since 2022vs Right | .211 | 79 | 23 | 48 | 5 | |||
2024vs Left | .231 | 6 | 4 | 3 | 0 | |||
2024vs Right | .143 | 6 | 4 | 2 | 0 | |||
2023vs Left | .198 | 25 | 8 | 16 | 3 | |||
2023vs Right | .273 | 27 | 9 | 24 | 2 | |||
2022vs Left | .213 | 39 | 12 | 23 | 5 | |||
2022vs Right | .175 | 46 | 10 | 22 | 3 | |||
More Splits→ | View More Split Stats |
Home/Away Pitching Splits
Since 2022
-37%
ERA on Road
2024
-100%
ERA on Road
ERA | WHIP | IP | K/9 | BB/9 | |||||
---|---|---|---|---|---|---|---|---|---|
Since 2022Home | 4.17 | 1.32 | 58.1 | 11.9 | 3.9 | ||||
Since 2022Away | 2.64 | 1.02 | 58.0 | 11.2 | 3.4 | ||||
2024Home | 6.75 | 2.63 | 2.2 | 10.1 | 10.1 | ||||
2024Away | 0.00 | 1.00 | 5.0 | 16.2 | 9.0 | ||||
2023Home | 4.87 | 1.57 | 20.1 | 10.6 | 4.4 | ||||
2023Away | 2.59 | 1.03 | 24.1 | 10.4 | 2.6 | ||||
2022Home | 3.57 | 1.08 | 35.1 | 12.7 | 3.1 | ||||
2022Away | 3.14 | 1.01 | 28.2 | 11.0 | 3.1 | ||||
More Splits→ | View More Split Stats |
Stat Review
How does Kenley Jansen compare to other relievers?
This section compares his stats with all relief pitcher seasons from the previous three seasons (minimum 30 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
1.50K/9
14.1BB/9
9.4HR/9
0.0Fastball
94.5 mphERA
2.35WHIP
1.57BABIP
.294GB/FB
0.80Left On Base
83.3%Exit Velocity
84.9 mphBarrels/BBE
2.6%Spin Rate
2513 rpmBalls Hit 95+ MPH
21.1%Swinging Strike
13.6%Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Recent RotoWire Articles Featuring Kenley Jansen See More
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Erik Siegrist checks out the free-agent pool in the AL after the first handful of games and isn't quite ready to go all in on a potential Jared Walsh comeback.
Brad Johnson writes about pitching happenings this week and in Rotation Ramblings, he notes Luis Gil will get an extended look in the rotation with Gerrit Cole's injury.
Latest Fantasy Rumors
Finds trade rumors frustrating
Jansen, who is dealing with lat soreness early in spring training, indicated he's been frustrated by rumors the Red Sox are looking to trade him, reports Sean McAdam of The Springfield Republican.
ANALYSIS
Boston is looking to shed money for 2024 and is hoping to find a team willing to take on most of the $16 million Jansen is owed. The veteran closer went 29-for-33 in save chances last season and had a 3.63 ERA, 1.28 WHIP and 52:17 K:BB over 44.2 innings. The lat injury isn't believed to be a serious issue, though he'll likely need a clean bill of health in order for a trade to go through.
Boston is looking to shed money for 2024 and is hoping to find a team willing to take on most of the $16 million Jansen is owed. The veteran closer went 29-for-33 in save chances last season and had a 3.63 ERA, 1.28 WHIP and 52:17 K:BB over 44.2 innings. The lat injury isn't believed to be a serious issue, though he'll likely need a clean bill of health in order for a trade to go through.
Past Fantasy Outlooks
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
Jansen wore a different uniform in 2022, but finished second in the league with 41 saves for Atlanta to bring his career total to 391, which ranks eighth all-time and second among active saves leaders. The 35-year-old has been fairly consistent over the past few seasons, with both his pitch mix and output. Jansen threw his famous cutter 65% of the time as his primary strikeout pitch, while occasionally mixing in a sinker (22%) that he mostly threw against left-handed batters, and a slider (13%). The veteran's arsenal yielded a respectable 3.38 ERA (2.76 SIERA), 1.05 WHIP and 32.7% strikeout rate, the latter being his highest since 2017. He also lowered his walk rate to 8.5% and his average velocity (93.7 mph) was surprisingly among the best of his career. If Jansen can maintain this level of production in his mid-to-late 30s, he's a lock to join the top five all-time saves leaders. He'll get the opportunity to do just that after signing a two-year, $32 million deal with Boston.
More Fantasy News
First blown save of season
Jansen gave up a run on three hits in the ninth inning Tuesday for his first blown save of the season in a 10-7 extra-innings loss to the Guardians.
ANALYSIS
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Yields run, holds on for save
Jansen earned the save Sunday against the Angels, allowing one run on a hit and a walk with two strikeouts across one inning.
ANALYSIS
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Notches third save
Jansen struck out one batter in a perfect ninth inning and earned a save over the Angels on Friday.
ANALYSIS
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Velo down early
Jansen's velocity is down close to three mph on his cutter to begin the season, Julian McWilliams of The Boston Globe reports.
ANALYSIS
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Nabs second save
Jansen picked up the save Wednesday against the Athletics. He issued two walks while striking out one over a scoreless inning.
ANALYSIS
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