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Aaron Bummer
Atlanta Braves · RP Throws: L Bats: L Height: 6'4 Weight: 215 Born: Sep 21, 1993 (31)
Percentile Ranks
vs LHH
vs RHH
K%
nan
nan
xWOBA
0.206 · %
0.258 · %
xSLG
nan
nan
 

Year Team G GS W-L IP ERA WHIP K% CSW% BB% xAVG xSLG xwOBA xISO BAR% SS% HH% GB% LD% FB% Z%
Z
Sw%
OZ%
OZ
Sw%
Apr May Jun Jul Aug Sep
20251400-117.03.181.1828.2%0.0%9.9%.201.272.235.0712.3%30.2%42%58%21%21%49%13%51%44% 3.9 5.4 0.0 0.0 0.0 0.0
20245604-355.13.581.4328.3%0.0%7.4%.232.283.261.0521.3%29.0%33%61%26%9%48%19%52%40% 2.6 3.7 3.4 4.8 3.8 2.5
20236105-558.16.791.5329.2%0.0%13.5%.218.303.293.0852.7%27.0%45%60%22%16%48%19%52%56% 0.6 1.6 4.2 4.0 3.4 3.1
2022White Sox3202-126.22.361.5325.6%0.0%8.5%.257.356.308.0996.7%30.7%45%64%27%9%48%18%52%49% 2.4 2.3 3.0 0.0 0.0 2.3
2021White Sox6205-556.13.511.2131.4%0.0%10.9%.180.235.249.0552.2%14.2%42%77%11%10%48%17%52%64% 1.5 3.9 5.1 0.0 0.0 1.7
2020White Sox901-09.10.961.1036.8%0.0%13.2%.173.286.262.1135.3%21.1%47%68%16%16%44%21%56%54% 0.0 0.0 0.0 0.0 0.0 0.0
2019White Sox5800-067.22.130.9823.0%0.0%8.8%.189.265.246.0762.3%18.3%38%71%15%10%51%16%49%46% 0.0 0.0 0.0 0.0 0.0 0.0
2018White Sox3700-131.24.261.6024.3%0.0%6.9%.262.372.308.1107.1%30.6%43%62%25%10%51%16%49%45% 0.0 0.0 0.0 0.0 0.0 0.0


2025 Splits vs LHB vs RHB
Pitch Type MPH SPIN Whiff% Usage xBAVG xWOBA K% BB% xSLG ISO HR Usage xBAVG xWOBA K% BB% xSLG ISO HR
4-SeamerFastball MPH0%5%.000.000100.00.0.000.000018%.324.36633.316.7.361.0000
SinkerFastball91.2 MPH216213%39%.137.19633.311.1.172.250027%.000.4140.00.0.332.3240
CurveballBreaking81.1 MPH236833%13%.000.00050.00.0.000.000040%.111.15231.60.0.167.1670
SweeperBreaking MPH27%43%.234.26621.414.3.296.200014%.333.42466.70.0.6671.0000
2024 Splits vs LHB vs RHB
Pitch Type MPH SPIN Whiff% Usage xBAVG xWOBA K% BB% xSLG ISO HR Usage xBAVG xWOBA K% BB% xSLG ISO HR
4-SeamerFastball MPH0%7%.171.30240.020.0.331.000011%.188.24532.08.0.236.0450
CutterFastball87.4 MPH236924%8%.500.63633.30.01.000.66714%.286.30514.30.0.429.3330
SinkerFastball93.1 MPH218811%40%.244.3119.49.4.338.259140%.293.3186.59.7.331.0540
CurveballBreaking82.2 MPH246120%1%.000.34550.050.0.000.00003%.000.0000.00.0.283.2940
SweeperBreaking MPH44%43%.219.21745.22.4.249.000041%.188.20050.93.5.224.0750
ChangeupOffspeed84.2 MPH176213%2%.000.2830.00.0.228.2110
2023 Splits vs LHB vs RHB
Pitch Type MPH SPIN Whiff% Usage xBAVG xWOBA K% BB% xSLG ISO HR Usage xBAVG xWOBA K% BB% xSLG ISO HR
4-SeamerFastball MPH32%4%.134.26725.025.0.136.00008%.116.25850.025.0.141.0830
CutterFastball87.2 MPH234452%8%.000.5680.00.0.531.490012%.282.39225.012.5.562.4291
SinkerFastball94.3 MPH196715%43%.314.41611.921.4.382.167045%.289.3478.312.5.406.1131
SweeperBreaking MPH45%45%.118.12545.52.3.140.047034%.175.26146.611.0.276.1112
ChangeupOffspeed88.1 MPH154867%1%.333.29466.70.0.3331.0000

Splits vs LHB vs RHB
Year PA xBAVG xWOBA xSLG ISO K% BB% HR PA xBAVG xWOBA xSLG ISO K% BB% HR
2025 30.167.206.208.16033.3%10.0%038.225.258.316.08326.3%2.6%0
2024 87.223.261.289.12731.0%6.9%2155.237.261.280.06427.1%6.5%0
2023 92.205.272.244.09028.3%12.0%0172.226.304.335.12230.2%12.8%4
2022 47.199.283.300.02625.5%14.9%070.292.325.389.12325.7%4.3%2
  Home Road
Season PA xAVG xWOBA K% BB% xSLG ISO HR PA xAVG xWOBA K% BB% xSLG ISO HR
202539.199.24433.3%5.1%.274.000029.204.22424.1%6.9%.269.2800
2024132.214.22733.3%3.8%.251.0731110.254.30222.7%10.0%.325.1041
2023138.229.31333.3%14.5%.320.1232126.208.27025.4%10.3%.286.0992
202247.249.31623.4%10.6%.363.075070.263.30427.1%7.1%.351.0942

Split Games Wind 0-9 mph+ Wind 10+ mph Humid 0-25 Humid 25-50 Humid 50-75 Humid 75-100 Temp 0-40 Temp 40-60 Temp 61-79 Temp 80+
Road 2.74 1.78 3.64 0.00 2.72 2.22 3.17 0.00 3.20 2.30 2.92
Home 4.17 4.03 5.10 0.00 3.37 4.31 5.90 0.00 5.10 3.87 5.08