Aaron Bummer
P | B/T: L/L | 6' 3" 215LBS | Age: 29

Draft: 2014 | Rd: 19, #558, Chicago White Sox | Nebraska

Stats

W L ERA G GS SV IP SO WHIP
2022 2 1 2.36 32 0 2 26.2 30 1.50
6 Seasons 9 10 3.03 228 0 5 213.2 231 1.24
G W-L ERA IP SO WHIP
2022 32 2-1 2.36 26.2 30 1.50
6 Seasons 228 9-10 3.03 213.2 231 1.24

Statcast Statistics

Season Age Pitches Batted
Balls
Barrels Barrel % Barrel/PA Exit
Velocity
Max EV Launch
Angle
Sweet
Spot %
XBA XSLG WOBA XWOBA XWOBACON HardHit% K% BB% ERA xERA
2017 23 374 58 4 6.9 4.4 86.8 111.3 4.4 22.4 .222 .378 .303 .330 .332 32.8 18.7 16.5 4.50 4.73
2018 24 609 98 7 7.1 4.9 90.7 109.8 0.7 30.6 .263 .372 .323 .308 .375 42.9 24.3 6.9 4.26 4.01
2019 25 1039 175 4 2.3 1.5 89.6 110.3 -2.7 18.3 .189 .265 .235 .246 .264 38.3 22.8 9.5 2.13 2.62
2020 26 155 19 1 5.3 2.6 94.2 109.0 -8.7 21.1 .173 .286 .208 .262 .340 47.4 36.8 13.2 0.96 2.86
2021 27 962 134 3 2.2 1.2 88.2 110.6 -10.9 14.2 .180 .235 .257 .249 .290 41.7 31.0 12.0 3.52 2.58
2022 28 457 75 5 6.7 4.3 90.2 113.2 -3.5 30.7 .257 .356 .328 .309 .370 45.3 25.6 8.5 2.36 3.97
Player 3596 559 24 4.3 2.7 89.4 113.2 -3.6 21.6 .211 .299 .273 .274 .314 40.6 25.8 10.5
MLB 6.7 4.6 88.4 122.4 12.1 33.0 .245 .405 .316 .315 .368 35.8 22.1 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Bummer relies on 4 pitches.
Sinker
(64.1%) ,
Slider
(27.1%) ,
Cutter
(8.1%) ,
Changeup
(0.7%) ,


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Pitch Tracking



Batted Ball Profile

Season GB % FB % LD % PU % Pull % Straight % Oppo % Weak % Topped % Under % Flare/Burner % Solid % Barrel % Barrel/PA
2017 56.9 20.7 17.2 5.2 25.9 39.7 34.5 3.4 53.4 19.0 15.5 0.0 6.9 4.4
2018 62.2 10.2 24.5 3.1 35.7 38.8 25.5 2.0 51.0 7.1 26.5 6.1 7.1 4.9
2019 71.4 10.3 15.4 2.9 35.4 41.1 23.4 3.4 58.9 10.9 17.7 5.7 2.3 1.5
2020 68.4 15.8 15.8 0.0 26.3 42.1 31.6 0.0 68.4 10.5 10.5 5.3 5.3 2.6
2021 76.9 9.7 11.2 2.2 29.1 39.6 31.3 7.5 53.0 9.0 23.1 2.2 2.2 1.2
2022 64.0 9.3 26.7 0.0 32.0 40.0 28.0 6.7 53.3 8.0 22.7 2.7 6.7 4.3
Player 68.5 11.3 17.7 2.5 32.2 40.1 27.7 4.5 55.1 10.2 20.8 3.9 4.3 2.7
MLB 44.9 23.1 25.0 7.1 36.8 37.7 25.4 3.8 33.0 24.6 24.4 5.7 6.7 4.6
! Note: All figures in this table cover the period 2015-present.

Pitch Movement


How this works: Every pitch is affected by the forces of gravity, which means that every pitch drops on its way from the mound to the plate. These numbers are reported with gravity, which makes them larger and different than other pitch movement numbers you may have seen. Since gravity requires time, and slower pitches aren’t ‘better’ just because they have more time to move, the movement of a pitch is compared to ‘average’ movement by comparing it to other MLB pitch types within +/- 2 MPH and from within +/- 0.5 feet of extension and release.
Vertical Movement (inches) Horizontal Movement (inches)
Year Pitch Team Hand # MPH Inches of Drop vs Avg % vs Avg Inches of Break vs Avg % Break vs Avg
2022 Cutter CWS L 37 86.2 37.1 -7.7 -26 4.5 2.1 86
2022 Changeup CWS L 3 89.0 35.4 4.2 14 18.2 3.0 20
2022 Slider CWS L 124 82.0 46.0 6.5 16 17.9 7.8 77
2022 Sinker CWS L 293 94.5 28.9 5.4 23 14.1 -1.7 -11
2021 Cutter CWS L 74 88.1 33.8 -6.1 -22 1.5 -0.5 -26
2021 Slider CWS L 281 83.0 45.1 6.2 16 17.9 10.2 132
2021 Changeup CWS L 6 88.5 37.0 7.1 24 13.7 -1.1 -8
2021 Sinker CWS L 588 95.4 29.2 7.9 37 15.4 0.2 1
2020 Slider CWS L 9 83.7 44.7 6.6 17 16.4 10.4 174
2020 Sinker CWS L 132 95.7 28.5 8.4 41 13.8 -1.1 -8
2020 Cutter CWS L 14 88.5 33.2 -6.3 -23 1.7 -0.5 -21
2019 Cutter CWS L 208 87.9 35.9 -7.3 -25 3.5 1.2 50
2019 Slider CWS L 33 84.9 36.0 -1.1 -3 14.4 9.1 173
2019 Sinker CWS L 703 95.6 27.3 6.5 31 12.1 -3.0 -20
2019 4-Seamer CWS L 89 95.1 24.0 -8.7 -57 7.0 -1.1 -13
2019 Changeup CWS L 6 89.4 33.5 5.2 19 11.5 -2.8 -20
2018 4-Seamer CWS L 64 92.8 20.6 -4.3 -27 6.9 -0.5 -6
2018 Cutter CWS L 66 89.0 31.3 -4.4 -17 3.5 1.5 77
2018 Changeup CWS L 23 87.3 35.7 5.7 19 12.3 -1.5 -11
2018 Slider CWS L 117 82.9 45.1 5.2 13 5.6 -0.1 -3
2018 Sinker CWS L 339 93.1 28.9 7.2 33 13.6 -1.1 -7
2017 Sinker CWS L 168 93.2 26.3 5.9 29 12.3 -2.8 -18
2017 Slider CWS L 138 83.0 42.7 4.6 12 7.4 2.1 40
2017 Changeup CWS L 7 88.5 27.3 1.1 4 12.6 -1.1 -8
2017 4-Seamer CWS L 61 93.7 17.8 -3.6 -26 7.2 -1.0 -12
! Note: Years are in reverse order.
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Run Values by Pitch Type

Year Pitch Type Team RV/100 Run Value Pitches % PA BA SLG wOBA Whiff% K% PutAway % xBA xSLG xwOBA Hard Hit %
2022 Sinker 0.6 2 293 64.1 71 .339 .484 .401 20.7 14.1 25.6 .285 .412 .353 55.8
2022 Slider -3.4 -4 124 27.1 39 .143 .143 .169 42.2 51.3 33.9 .149 .188 .186 12.5
2022 Cutter 5.8 2 37 8.1 6 .667 .667 .600 33.3 0.0 0.0 .557 .632 .526 33.3
2022 Changeup -7.6 0 3 0.7 1 .000 .000 .000 0.0 0.0 -- .529 1.144 .705 100.0
2021 Sinker 0.6 4 591 61.4 136 .274 .336 .366 17.1 8.1 12.1 .258 .342 .337 47.6
2021 Slider -2.5 -7 282 29.3 92 .094 .094 .149 52.2 67.4 32.3 .075 .087 .126 21.7
2021 Cutter 0.4 0 74 7.7 8 .375 .750 .257 52.8 25.0 20.0 .199 .320 .221 16.7
2021 Changeup 1.1 0 6 0.6 -- -- -- -- -- 0.0 -- -- -- --
2020 Sinker -1.5 -2 132 85.2 27 .182 .182 .296 23.3 22.2 23.1 .204 .261 .297 50.0
2020 Cutter 5.1 1 14 9.0 6 .167 .167 .150 50.0 50.0 50.0 .201 .616 .327 33.3
2020 Slider -7.4 -1 9 5.8 5 .000 .000 .000 85.7 100.0 62.5 -- -- .000 --
2019 Sinker -2.8 -20 703 67.7 183 .195 .268 .263 16.1 15.8 17.0 .201 .277 .257 39.7
2019 Cutter -1.9 -4 208 20.0 51 .087 .109 .160 47.2 47.1 25.0 .124 .171 .196 31.8
2019 4-Seamer 0.9 1 89 8.6 20 .353 .529 .430 24.4 20.0 13.8 .271 .440 .358 46.2
2019 Slider -5.6 -2 33 3.2 6 .167 .167 .150 35.7 50.0 23.1 .154 .175 .146 0.0
2019 Changeup -2.9 0 6 0.6 1 .000 .000 .000 0.0 0.0 -- .051 .073 .046 0.0
2018 Sinker 0.7 2 339 55.7 94 .322 .391 .381 21.7 21.3 24.1 .274 .350 .306 47.8
2018 Slider 0.9 1 117 19.2 20 .263 .316 .313 41.0 35.0 18.4 .277 .427 .357 41.7
2018 Cutter -0.7 0 66 10.8 13 .308 .462 .331 19.4 15.4 10.5 .220 .337 .241 9.1
2018 4-Seamer 2.5 2 64 10.5 10 .286 .429 .425 8.7 10.0 6.3 .318 .836 .545 66.7
2018 Changeup -4.6 -1 23 3.8 7 .143 .143 .129 50.0 71.4 50.0 .099 .103 .089 0.0
2017 Sinker -3.5 -6 168 44.9 45 .059 .059 .216 21.1 13.3 15.8 .178 .211 .292 24.1
2017 Slider 0.6 1 138 36.9 32 .222 .444 .335 44.8 28.1 20.5 .239 .431 .335 36.8
2017 4-Seamer 2.3 1 61 16.3 11 .300 .700 .441 14.3 18.2 13.3 .255 .577 .378 37.5
2017 Changeup 19.1 1 7 1.9 2 1.000 3.000 1.625 0.0 0.0 -- .604 1.524 .868 100.0
! Note: Years are in reverse order.
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Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2020 Cutter 11 88.4 30 2.9 1:15 2:15 -60
2020 Sinker 77 95.6 79 15.0 10:15 9:00 75
2021 Cutter 72 88.0 17 2.5 1:45 3:00 -75
2021 Sinker 523 95.4 83 16.2 10:00 9:00 60
2021 Slider 279 83.0 82 20.2 4:15 3:45 30
2022 Cutter 37 86.2 22 5.5 2:30 3:45 -75
2022 Sinker 275 94.4 79 15.1 10:00 9:15 45
2022 Slider 124 82.0 79 20.3 4:00 3:45 15
! Note: This table is showing data from the PITCHER perspective.
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Swing/Take

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2017 90 374 -3 -6 3 4 -2
2018 144 609 -2 -2 5 3 3
2019 261 1,039 -23 -11 4 5 -25
2020 44 179 -1 -1 1 -1 -2
2021 252 1,012 -6 -6 7 3 -3
2022 117 457 -4 -4 5 3 -1
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Plate Discipline

Season Pitches Zone % Zone Swing % Zone Contact % Chase % Chase Contact % Edge % 1st Pitch Strike % Swing % Whiff % Meatball % Meatball Swing %
2017 374 43.9 62.2 81.4 23.8 48.0 40.4 51.1 40.6 28.9 7.5 57.1
2018 609 50.6 62.3 83.9 24.3 52.1 37.1 53.5 43.5 23.8 8.7 66.0
2019 1,039 51.1 66.3 84.1 27.4 53.2 41.7 59.4 47.3 24.2 8.2 80.0
2020 155 43.9 50.0 79.4 29.9 46.2 40.6 57.9 38.7 35.0 7.1 63.6
2021 962 48.2 60.6 81.7 25.9 35.9 40.2 60.4 42.4 31.9 7.6 69.4
2022 457 47.9 54.8 81.7 23.1 50.9 42.2 53.0 38.3 27.4 7.0 65.6
Player 3,596 48.8 61.6 82.7 25.6 47.1 40.4 57.0 43.1 27.4 7.8 70.1
MLB 48.5 66.9 82.0 28.4 58.3 42.6 60.8 47.1 24.7 7.2 76.1
! Note: All figures in this table cover the period 2015-present.

Percentile Rankings

Year xwOBA /
xERA
xBA xSLG xISO xOBP Brl Brl% EV Hard
Hit%
K% BB% Whiff% Chase
Rate
FB
Velo
FB
Spin
CB
Spin
Extension
2017 61 3 37
2018 48 8 38
2019 98 94 99 100 89 99 99 23 35 51 29 42 29 67 12 36
2020 81 8 53
2021 96 96 100 100 73 99 99 64 26 89 12 85 28 73 9 30
2022 50 17 48
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Expected Home Runs

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2017 21.7 4 2.9 1 0 2 2 50.0
2018 25.1 1 1.9 -1 5 3 0 0.0
2019 22.9 4 4.6 -1 0 4 2 50.0
2021 22.6 3 2.0 1 1 1 1 33.3
2022 24.6 2 1.7 0 1 2 0 0.0
Player 22.9 14 13.1 1 7 12 5 35.7

Expected Home Runs by Park

Year HR
2017 4 3 3 4 3 3 3 3 3 3 3 2 2 3 3 4 3 3 2 3 3 3 2 4 4 3 3 2 3 2 3
2018 1 5 4 2 2 3 1 4 1 1 1 1 0 1 2 2 1 4 2 1 3 1 0 1 2 3 2 0 2 0 4
2019 4 5 4 6 6 6 5 6 4 2 5 5 3 2 3 6 3 6 3 5 5 6 4 4 5 5 4 5 2 6 6
2021 3 2 2 2 2 2 2 2 2 2 3 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2
2022 2 1 2 2 2 2 2 2 2 1 2 2 1 1 1 2 2 1 1 1 2 2 2 2 2 2 2 1 2 2 2
Player 14 16 15 16 15 16 13 17 12 9 14 12 8 9 11 16 11 16 9 12 15 14 10 13 15 15 13 10 11 12 17
! Note: This tells how many of this player's home runs would have been out of other stadiums. This accounts for different wall heights, distances and environmental effects. For these purposes, the 2020 Blue Jays home field was still Rogers Centre, not Sahlen Field.
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Year to Year Changes

Metric 2015 2016 +/-   2017 +/-   2018 +/-   2019 +/-   2020 +/-   2021 +/-   2022 +/-  
Fastball Velocity 93.4 92.5 -0.9 94 1.5 95 1 94.6 -0.4 93.5 -1.1
Offspeed Velocity 88.5 87.3 -1.2 89.4 2.1 0 0 88.5 0 89 0.5
Breaking Velocity 83 82.9 -0.1 84.9 2 83.7 -1.2 83 -0.7 82 -1
Exit Velocity 86.8 90.7 3.9 89.6 -1.1 94.2 4.6 88.2 -6 90.2 2
Launch Angle 4.4 .7 -3.7 -2.7 -3.4 -8.7 -6 -10.9 -2.2 -3.5 7.4
Barrel % 6.9 7.1 0.2 2.3 -4.8 5.3 3 2.2 -3.1 6.7 4.5
Hard Hit % 32.8 42.9 10.1 38.3 -4.6 47.4 9.1 41.7 -5.7 45.3 3.6
Sweet Spot % 22.4 30.6 8.2 18.3 -12.3 21.1 2.8 14.2 -6.9 30.7 16.5
xBA .222 .263 0.041 .189 -0.074 .173 -0.016 .18 0.007 .257 0.077
BA .178 .301 0.123 .184 -0.117 .152 -0.032 .202 0.05 .288 0.086
xwOBA .33 .308 -0.022 .246 -0.062 .262 0.016 .249 -0.013 .309 0.06
wOBA .303 .323 0.02 .235 -0.088 .208 -0.027 .257 0.049 .328 0.071
xSLG .378 .372 -0.006 .265 -0.107 .286 0.021 .235 -0.051 .356 0.121
SLG .37 .376 0.006 .252 -0.124 .152 -0.1 .25 0.098 .375 0.125
K% 18.7 24.3 5.6 22.8 -1.5 36.8 14 31 -5.8 25.6 -5.4
BB% 16.5 6.9 -9.6 9.5 2.6 13.2 3.7 12 -1.2 8.5 -3.5
Swing % 40.6 43.5 2.9 47.3 3.8 38.7 -8.6 42.4 3.7 38.3 -4.1
Whiff% 28.9 23.8 -5.1 24.2 0.4 35 10.8 31.9 -3.1 27.4 -4.5
In Zone % 43.9 50.6 6.7 51.1 0.5 43.9 -7.2 48.2 4.3 47.9 -0.3
Out of Zone % 56.1 49.4 -6.7 48.9 -0.5 56.1 7.2 51.8 -4.3 52.1 0.3
Out of Zone Swing % 23.8 24.3 0.5 27.4 3.1 29.9 2.5 25.9 -4 23.1 -2.8
First Pitch Swing % 15.6 25 9.4 25.3 0.3 18.4 -6.9 25 6.6 22.2 -2.8
First Pitch Strike % 51.1 53.5 2.4 59.4 5.9 57.9 -1.5 60.4 2.5 53 -7.4
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Statcast Shift Statistics

vs RHHvs LHH
YearPAwOBAPAShifts%PAShifts%
2017 90 .303 42 4 9.5 48 19 39.6
2018 144 .323 87 3 3.4 57 11 19.3
2019 261 .235 166 7 4.2 95 17 17.9
2020 38 .208 25 0 0.0 13 2 15.4
2021 236 .258 163 2 1.2 73 6 8.2
2022 117 .328 70 4 5.7 47 4 8.5

Pitch Tempo