2025 Stats
W-L
0-0
ERA
0.00
WHIP
0.86
K
7
SV
5
Rest-of-Season Projections
2025 Fantasy Outlook
Jansen led Boston with 27 saves (12th in the league) and a 67.5% team save share that ranked 10th among closers. The veteran's outputs were fairly consistent with recent seasons and he remained healthy for the most part, overcoming minor back and lat ailments before closing out September on the injured list with right shoulder inflammation. The 37-year-old free-agent leads active relievers with 447 career saves and is 32 away from third place on the all-time list. Landing with the Angels should provide him a solid grip on the closer role, but flamethrower Ben Joyce is waiting in the wings and could see occasional save chances. Read Past Outlooks

Notches fifth save
Jansen worked a perfect ninth inning Friday to record his fifth save of the season in a 2-0 win over the Giants. He didn't walk or strike out a batter.
ANALYSIS
Three flyball outs got the job done for Jansen, who has begun the season going 5-for-5 in converting save chances and has yet to give up a run in seven innings. While he could be a candidate to get flipped at the trade deadline if the Angels fall out of contention, that hasn't been a concern in the early going -- the Halos sit second in the AL West with a 10-9 record.
Three flyball outs got the job done for Jansen, who has begun the season going 5-for-5 in converting save chances and has yet to give up a run in seven innings. While he could be a candidate to get flipped at the trade deadline if the Angels fall out of contention, that hasn't been a concern in the early going -- the Halos sit second in the AL West with a 10-9 record.
Pitching Stats
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Minor League Game Log

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Pitching Appearances Breakdown
Average Pitch Count
15
Last 10 Games
15
Last 5 Games
14
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 2023
-3%
BAA vs RHP
2025
-50%
BAA vs RHP
BAA | K | BB | H | HR | ||||
---|---|---|---|---|---|---|---|---|
Since 2023vs Left | .215 | 55 | 20 | 39 | 5 | |||
Since 2023vs Right | .209 | 66 | 19 | 43 | 4 | |||
2025vs Left | .250 | 1 | 2 | 2 | 0 | |||
2025vs Right | .125 | 6 | 0 | 2 | 0 | |||
2024vs Left | .228 | 29 | 10 | 21 | 2 | |||
2024vs Right | .167 | 33 | 10 | 17 | 2 | |||
2023vs Left | .198 | 25 | 8 | 16 | 3 | |||
2023vs Right | .273 | 27 | 9 | 24 | 2 | |||
More Splits→ | View More Split Stats |
Home/Away Pitching Splits
Since 2023
-26%
ERA on Road
2025
No Stats
ERA | WHIP | IP | K/9 | BB/9 | |||||
---|---|---|---|---|---|---|---|---|---|
Since 2023Home | 3.73 | 1.20 | 50.2 | 9.6 | 3.2 | ||||
Since 2023Away | 2.75 | 1.08 | 55.2 | 10.8 | 3.4 | ||||
2025Home | 0.00 | 0.00 | 2.0 | 4.5 | 0.0 | ||||
2025Away | 0.00 | 1.20 | 5.0 | 10.8 | 3.6 | ||||
2024Home | 3.18 | 1.02 | 28.1 | 9.2 | 2.5 | ||||
2024Away | 3.42 | 1.10 | 26.1 | 11.3 | 4.1 | ||||
2023Home | 4.87 | 1.57 | 20.1 | 10.6 | 4.4 | ||||
2023Away | 2.59 | 1.03 | 24.1 | 10.4 | 2.6 | ||||
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
3.50K/9
9.0BB/9
2.6HR/9
0.0Fastball
92.8 mphERA
0.00WHIP
0.86BABIP
.239GB/FB
0.33Left On Base
100.0%Exit Velocity
85.1 mphBarrels/BBE
0.0%Spin Rate
2574 rpmBalls Hit 95+ MPH
20.6%Swinging Strike
15.5%Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Past Fantasy Outlooks
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2013
2012
2011
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.
More Fantasy News

Grabs fourth save
Jansen earned the save in Saturday's 4-1 win over the Angels, allowing one hit while striking out one in a scoreless ninth inning.
ANALYSIS
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Escapes with save
Jansen allowed two hits in a scoreless inning during Tuesday's win against the Rays. He struck out two and earned a save.
ANALYSIS
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Secures second save
Jansen picked up the save in Sunday's 3-2 win against the White Sox, pitching a scoreless inning with no strikeouts while allowing a hit and a walk.
ANALYSIS
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Locks down first save with Halos
Jansen walked one and struck out two in a scoreless ninth inning Saturday to record his first save of the season in a 1-0 win over the White Sox.
ANALYSIS
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Set for spring debut Saturday
Jansen (shoulder) will make his spring debut Saturday against the Athletics, Jeff Fletcher of The Orange County Register reports
ANALYSIS
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Latest Fantasy Rumors

Unwilling to pitch in setup role?
The Mets had contract talks with Jansen, but the pitcher's goal of reaching 500 career saves, along with his likely price tag, scuttled discussions, Ken Rosenthal and Will Sammon of The Athletic report.
ANALYSIS
The presence of Edwin Diaz meant Jansen would have been pegged for a setup role in New York. While it's not clear whether Jansen, who ended 2024 on the IL due to shoulder inflammation, is adamantly opposed to signing somewhere he would not be the closer, his quest to reach the 500-save plateau -- he's 53 saves away -- suggests that might be the case. The Blue Jays and Cubs have also been connected to Jansen, but that was before they acquired Jeff Hoffman and Ryan Pressly, respectively.
The presence of Edwin Diaz meant Jansen would have been pegged for a setup role in New York. While it's not clear whether Jansen, who ended 2024 on the IL due to shoulder inflammation, is adamantly opposed to signing somewhere he would not be the closer, his quest to reach the 500-save plateau -- he's 53 saves away -- suggests that might be the case. The Blue Jays and Cubs have also been connected to Jansen, but that was before they acquired Jeff Hoffman and Ryan Pressly, respectively.