Aaron Bummer
31-Year-Old
2024 Stats
W-L
4-3
ERA
3.58
WHIP
1.43
K
69
SV
0
Rest-of-Season Projections
2024 Fantasy Outlook
Bummer had one of his worst statistical seasons over his seven-year career in 2023. His 6.79 ERA was highest in the league among qualified relievers, while his 1.53 WHIP was 12th-worst. This is mostly due to an elevated 13.5% walk rate (his worst since his rookie season), high BABIP (.340) and poor 55.4% left-on-base percentage. However, Bummer's inflated ERA was far worse than his 3.58 xERA, suggesting he should rebound in that category. The veteran is still one of the best in the league at inducing ground balls, but Bummer threw fewer sinkers (45% pitch usage) last season in favor of more sweepers (38%). This adjustment yielded a career-high 78 strikeouts, which speaks to the upside the southpaw possesses. Bummer was recently traded to Atlanta, where he could emerge as one of the team's top setup options in 2024. Read Past Outlooks
Gets new deal from Atlanta
Bummer signed a two-year, $13 million contract with Atlanta on Saturday.
ANALYSIS
Bummer's original deal included two club options over the next two years, worth $7.25 million and $7.5 million, respectively. However, his latest contract will void those two option years while saving the team a bit of cash, as the left-hander is now due to make $3.5 million in 2025. The 31-year-old finished with a 3.58 ERA and 1.43 WHIP across 55.1 innings during his first season in Atlanta.
Bummer's original deal included two club options over the next two years, worth $7.25 million and $7.5 million, respectively. However, his latest contract will void those two option years while saving the team a bit of cash, as the left-hander is now due to make $3.5 million in 2025. The 31-year-old finished with a 3.58 ERA and 1.43 WHIP across 55.1 innings during his first season in Atlanta.
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
18
Last 10 Games
15
Last 5 Games
17
How many pitches does Aaron Bummer 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 Aaron Bummer 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
-10%
BAA vs LHP
2024
-6%
BAA vs LHP
BAA | K | BB | H | HR | ||||
---|---|---|---|---|---|---|---|---|
Since 2022vs Left | .245 | 65 | 24 | 48 | 2 | |||
Since 2022vs Right | .272 | 112 | 40 | 96 | 6 | |||
2024vs Left | .266 | 27 | 6 | 21 | 2 | |||
2024vs Right | .284 | 42 | 12 | 40 | 0 | |||
2023vs Left | .231 | 26 | 11 | 18 | 0 | |||
2023vs Right | .238 | 52 | 25 | 35 | 4 | |||
2022vs Left | .231 | 12 | 7 | 9 | 0 | |||
2022vs Right | .323 | 18 | 3 | 21 | 2 | |||
More Splits→ | View More Split Stats |
Home/Away Pitching Splits
Since 2022
-16%
ERA at Home
2024
-52%
ERA at Home
ERA | WHIP | IP | K/9 | BB/9 | |||||
---|---|---|---|---|---|---|---|---|---|
Since 2022Home | 4.27 | 1.49 | 71.2 | 12.7 | 3.8 | ||||
Since 2022Away | 5.11 | 1.47 | 68.2 | 10.0 | 4.5 | ||||
2024Home | 2.48 | 1.13 | 32.2 | 12.1 | 1.4 | ||||
2024Away | 5.16 | 1.85 | 22.2 | 9.9 | 5.2 | ||||
2023Home | 7.31 | 1.84 | 28.1 | 14.6 | 6.4 | ||||
2023Away | 6.30 | 1.23 | 30.0 | 9.6 | 4.8 | ||||
2022Home | 1.69 | 1.69 | 10.2 | 9.3 | 4.2 | ||||
2022Away | 2.81 | 1.38 | 16.0 | 10.7 | 2.8 | ||||
More Splits→ | View More Split Stats |
Stat Review
How does Aaron Bummer 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
3.83K/9
11.2BB/9
2.9HR/9
0.3Fastball
93.3 mphERA
3.58WHIP
1.43BABIP
.404GB/FB
4.74Left On Base
72.2%Exit Velocity
80.5 mphBarrels/BBE
1.0%Spin Rate
2299 rpmBalls Hit 95+ MPH
22.4%Swinging Strike
10.6%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 Aaron Bummer See More
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Brad Johnson concludes his deep dive into pitching staffs with the National League East, where in Atlanta, Spencer Strider is at the top of his game.
Todd Zola considers a new approach to regressing a pitcher's BABIP, which suggests better days should be ahead for Hunter Greene.
Past Fantasy Outlooks
2023
2022
2021
2020
2019
2018
Bummer required two IL stints in 2022, first a minimum stay early in the season for a sore knee, then a more lengthy 3-month absence due to a shoulder/lat injury. This limited the southpaw to only 26.2 innings last season. Injuries appear to be part of the package for the 29-year-old, who has now missed time on the IL during each of the past three years. When healthy, Bummer is adept at inducing ground balls, as his career rate is 67.6%, which is roughly 25% above league average. He walks about four batters per nine innings, though, and the frequent grounders could lead to some BABIP and ratio instability. However, Bummer's role as one of the White Sox primary setup men appears secure, so expect him to provide holds as long as he's healthy.
More Fantasy News
Club option will be exercised
Atlanta president of baseball operations Alex Anthopoulos said Friday that the team plans to pick up Bummer's $7.25 million club option for 2025, Grant McAuley of 92.9 The Game Atlanta reports.
ANALYSIS
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Collects third win
Bummer (3-2) picked up the win Friday over the Marlins, allowing one hit and striking out two in a scoreless eighth inning.
ANALYSIS
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Not seeing high-leverage work
Bummer has posted a 3.62 ERA, 1.52 WHIP and 37:11 K:BB through 32.1 innings with two wins, zero saves and zero holds through 33 appearances.
ANALYSIS
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Collects second win
Bummer (2-2) picked up the win Thursday over the Nationals, striking out one in a perfect seventh inning.
ANALYSIS
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Nabs win Monday
Bummer (1-1) was credited with the win Monday against the Astros, giving up one hit in a scoreless two-thirds of an inning.
ANALYSIS
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Latest Fantasy Rumors
Staying put
Bummer won't be traded at this year's deadline, Bob Nightengale of USA Today reports.
ANALYSIS
Teams keep asking about Dylan Cease and Bummer, but the White Sox will be keeping both pitchers in the fold. With Kendall Graveman and Reynaldo Lopez out of the picture and Keynan Middleton also likely to be dealt, it will be Bummer and Gregory Santos handling the high-leverage work while closer Liam Hendriks is on the shelf with an elbow issue.
Teams keep asking about Dylan Cease and Bummer, but the White Sox will be keeping both pitchers in the fold. With Kendall Graveman and Reynaldo Lopez out of the picture and Keynan Middleton also likely to be dealt, it will be Bummer and Gregory Santos handling the high-leverage work while closer Liam Hendriks is on the shelf with an elbow issue.