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Aaron Bummer
P | B/T: L/L | 6' 3" 215LBS | Age: 27

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

Stats

W L ERA G GS SV IP SO WHIP
2021 0 1 1.86 12 0 0 9.2 13 1.66
5 Seasons 2 5 2.89 146 0 1 140.1 139 1.22
G W-L ERA IP SO WHIP
2021 12 0-1 1.86 9.2 13 1.66
5 Seasons 146 2-5 2.89 140.1 139 1.22

Statcast Statistics

Season Pitches Batted Balls Barrels Barrel % Exit Velocity Max EV Launch Angle Sweet Spot % XBA XSLG WOBA XWOBA XWOBACON HardHit% K% BB% ERA xERA
2017 374 58 4 6.9 86.8 111.3 4.4 22.4 .222 .378 .303 .330 .332 32.8 18.7 16.5 4.50 4.80
2018 609 98 7 7.1 90.7 109.8 0.7 30.6 .263 .373 .328 .313 .375 42.9 24.3 6.9 4.26 4.21
2019 1039 175 4 2.3 89.4 110.3 -2.9 17.7 .182 .255 .238 .242 .254 38.8 22.8 9.5 2.13 2.59
2020 155 19 1 5.3 94.2 109 -8.7 21.1 .173 .286 .208 .262 .340 47.4 36.8 13.2 0.96 2.88
2021 187 26 1 3.8 85.8 110.6 -14.4 19.2 .190 .244 .298 .264 .280 42.3 28.3 13 1.86 2.56
2364 376 17 4.5 89.3 111.3 -1.9 22.1 .209 .304 .273 .276 .304 39.6 23.9 10.5
6.5 88.3 122.2 11.9 32.8 .243 .403 .318 .313 .363 35.2 21.9 8.4

Statcast Pitch Arsenal

Bummer relies on 3 pitches.
Sinker
(72.7%) ,
Slider
(16.6%) ,
Cutter
(10.7%) ,


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Pitch Tracking

Year Pitch Type # # RHB # LHB % MPH PA AB H 1B 2B 3B HR SO BBE BA XBA SLG XSLG WOBA XWOBA EV LA Spin Ext. Whiff% PutAway%
2021 Sinker 136 84 52 72.7 96.1 29 23 8 8 0 0 0 3 20 .348 .252 .348 .311 .387 .335 89.9 -14 1997 6.1 16.0 12.5
2021 Slider 31 21 10 16.6 83.0 13 12 1 1 0 0 0 9 3 .083 .037 .083 .039 .123 .086 57.3 -40 2447 6.0 61.1 37.5
2021 Cutter 20 6 14 10.7 88.5 4 4 1 1 0 0 0 1 3 .250 .291 .250 .471 .221 .323 86.8 6 2172 6.0 33.3 33.3
2020 Sinker 132 86 46 85.2 95.7 27 22 4 4 0 0 0 6 16 .182 .204 .182 .261 .260 .296 94.3 -14 2021 6.4 23.3 23.1
2020 Cutter 14 7 7 9.0 88.5 6 6 1 1 0 0 0 3 3 .167 .201 .167 .616 .147 .327 93.7 18 2173 6.3 50.0 50.0
2020 Slider 9 7 2 5.8 83.7 5 5 0 0 0 0 0 5 0 .000 .000 .000 .000 2452 6.2 85.7 62.5
! Note: Years are in reverse order.
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Batted Ball Profile

Season GB % FB % LD % PU % Pull % Straight % Oppo % Weak % Topped % Under % Flare/Burner % Solid % Barrel %
2017 56.9 20.7 17.2 5.2 25.9 39.7 34.5 3.4 53.4 19 15.5 0 6.9
2018 62.2 10.2 24.5 3.1 35.7 38.8 25.5 2 51 7.1 26.5 6.1 7.1
2019 71.4 10.3 15.4 2.9 35.4 40.6 24 3.4 57.7 10.9 16.6 5.1 2.3
2020 68.4 15.8 15.8 0 26.3 42.1 31.6 0 68.4 10.5 10.5 5.3 5.3
2021 80.8 7.7 11.5 0 30.8 30.8 38.5 15.4 50 3.8 23.1 3.8 3.8
67.3 12 17.8 2.9 33.2 39.4 27.4 3.7 55.3 10.6 19.1 4.5 4.5
45.2 22 25.6 7.1 36.6 37.9 25.5 3.6 33.5 24.3 24.5 5.6 6.5

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
2021 Cutter CWS L 20 88.5 33.3 -6.5 -24 1 -1 -50
2021 Slider CWS L 31 83 45.3 6.7 17 17.6 11.2 175
2021 Sinker CWS L 136 96.1 28.4 8.2 40 16.7 0.8 5
2020 Slider CWS L 9 83.7 44.7 6.6 17 16.4 10.4 175
2020 Sinker CWS L 131 95.7 28.5 8.3 41 13.8 -1.1 -8
2020 Cutter CWS L 14 88.5 33.2 -6.3 -23 1.7 -0.5 -21
2019 Changeup CWS L 5 89.9 32.2 4 14 12.1 -2.3 -16
2019 4-Seamer CWS L 84 95.1 24 -8.7 -57 7 -1.1 -14
2019 Slider CWS L 33 84.9 36 -1.1 -3 14.4 9.1 174
2019 Cutter CWS L 200 87.9 35.8 -7.2 -25 3.4 1.1 49
2019 Sinker CWS L 688 95.6 27.3 6.4 31 12.2 -3 -20
2018 Cutter CWS L 66 89 31.3 -4.4 -17 3.5 1.5 77
2018 Sinker CWS L 339 93.1 28.9 7.2 33 13.6 -1.1 -7
2018 Slider CWS L 117 82.9 45.1 5.2 13 5.6 -0.1 -3
2018 Changeup CWS L 23 87.3 35.7 5.7 19 12.3 -1.5 -11
2018 4-Seamer CWS L 64 92.8 20.6 -4.3 -27 6.9 -0.5 -6
2017 Slider CWS L 138 83 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 Sinker CWS L 168 93.2 26.3 5.9 29 12.3 -2.8 -18
2017 4-Seamer CWS L 61 93.7 17.8 -3.6 -26 7.2 -0.9 -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 %
2021 Cutter -2.5 0 20 10.7 4 .25 .25 .225 33.3 25 33.3 .291 .471 .323 33.3
2021 Slider -6.1 -2 31 16.6 13 .083 .083 .123 61.1 69.2 37.5 .037 .039 .085 0
2021 Sinker 1.5 2 136 72.7 29 .348 .348 .424 16 10.3 12.5 .252 .311 .337 50
2020 Slider -7.5 -1 9 5.8 5 0 0 0 85.7 100 62.5 0
2020 Cutter 5.1 1 14 9 6 .167 .167 .15 50 50 50 .201 .616 .327 33.3
2020 Sinker -1.4 -2 132 85.2 27 .182 .182 .296 23.3 22.2 23.1 .204 .261 .297 50
2019 Changeup -4 0 5 0.5 1 0 0 0 0 0 .051 .073 .046 0
2019 Slider -5.3 -2 33 3.2 6 .167 .167 .15 35.7 50 23.1 .154 .175 .146 0
2019 4-Seamer 1 1 84 8.1 18 .333 .533 .428 19.5 16.7 11.1 .277 .468 .375 41.7
2019 Cutter -1.8 -4 200 19.2 50 .089 .111 .163 46.7 46 25 .127 .175 .2 31.8
2019 Sinker -2.5 -18 688 66.2 179 .2 .275 .272 16.5 16.2 17.2 .198 .273 .255 40.9
2018 Changeup -4.6 -1 23 3.8 7 .143 .143 .129 50 71.4 50 .099 .103 .089 0
2018 4-Seamer 2.5 2 64 10.5 10 .286 .429 .425 8.7 10 6.3 .318 .836 .545 66.7
2018 Cutter -0.5 0 66 10.8 13 .308 .462 .331 19.4 15.4 10.5 .22 .337 .241 9.1
2018 Slider 0.9 1 117 19.2 20 .263 .316 .313 41 35 18.4 .277 .427 .357 41.7
2018 Sinker 0.5 2 339 55.7 94 .322 .391 .372 21.7 21.3 24.1 .275 .351 .306 47.8
2017 Changeup 19.1 1 7 1.9 2 1 3 1.625 0 0 .604 1.524 .868 100
2017 4-Seamer 2.3 1 61 16.3 11 .3 .7 .441 14.3 18.2 13.3 .255 .577 .378 37.5
2017 Slider 0.6 1 138 36.9 32 .222 .444 .335 44.8 28.1 20.5 .239 .431 .335 36.8
2017 Sinker -3.4 -6 168 44.9 45 .059 .059 .216 21.1 13.3 15.8 .178 .211 .292 24.1
! 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 10:15 9:00 75
2021 Cutter 18 88.4 19 2.4 1:15 2:30 -75
2021 Sinker 111 96.1 84 17.6 10:00 9:00 60
2021 Slider 28 83 82 19.9 4:15 3:45 30
! 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 -3 5 3 3
2019 254 1010 -21 -10 4 5 -22
2020 44 179 -1 -1 1 0 -2
2021 46 187 1 -3 2 0 0
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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 44.1 61.8 81.4 23.9 48 40.4 50.5 40.6 28.9 7.5 57.1
2018 609 50.7 62.1 83.9 24.3 52.1 37.1 53.5 43.5 23.8 8.7 66
2019 1039 51.2 66.2 84.2 27.4 54.1 41.3 58.9 47.3 24.2 8.2 79.5
2020 155 44.5 50.7 80 29.1 44 41.3 57.9 38.7 35 7.1 63.6
2021 187 45.5 62.4 86.8 26.5 37 35.8 50 42.8 28.7 8.6 62.5
2364 49 63.2 83.7 26.1 50.3 39.6 55.5 44.3 25.8 8.2 70.2
48.4 66.6 82.1 28.4 58.8 42.6 60.5 46.9 24.4 7.2 75.8

Percentile Rankings

Year xwOBA xBA xSLG xISO xOBP Brl Brl% EV HardHit% K% BB% Whiff% xERA FB Velo FB Spin CB Spin
2017 61 3
2018 48 7
2019 97 95 99 100 90 99 99 28 29 51 29 42 97 69 12
2020
2021 87 88 96 97 59 84 82 87 37 74 16 60 87
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Expected Home Runs

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2019 22.9 4 4.1 0 0 4 2 50

Expected Home Runs by Park

Year HR
2019 4 5 4 6 6 3 5 6 4 2 5 5 3 2 2 6 3 5 4 4 2 4 4 4 4 5 4 4 2 5 6
! Note: This tells how many of this player's home runs would have been out of other stadiums. This accounts for different wall heights and distances, but does not attempt to adjust for 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 +/-  
Fastball Velocity 93.4 92.5 -0.9 94 1.5 95 1 95.1 0.1
Offspeed Velocity 88.5 87.3 -1.2 89.9 2.6 0 0 0 0
Breaking Velocity 83 82.9 -0.1 84.9 2 83.7 -1.2 83 -0.7
Exit Velocity 86.8 90.7 3.9 89.4 -1.3 94.2 4.8 85.8 -8.4
Launch Angle 4.4 .7 -3.7 -2.9 -3.6 -8.7 -5.8 -14.4 -5.7
Barrel % 6.9 7.1 0.2 2.3 -4.8 5.3 3 3.8 -1.5
Hard Hit % 32.8 42.9 10.1 38.8 -4.1 47.4 8.6 42.3 -5.1
Sweet Spot % 22.4 30.6 8.2 17.7 -12.9 21.1 3.4 19.2 -1.9
xBA .222 .263 0.041 .182 -0.081 .173 -0.009 .19 0.017
BA .178 .301 0.123 .184 -0.117 .152 -0.032 .256 0.104
xwOBA .33 .313 -0.017 .242 -0.071 .262 0.02 .264 0.002
wOBA .303 .328 0.025 .238 -0.09 .208 -0.03 .298 0.09
xSLG .378 .373 -0.005 .255 -0.118 .286 0.031 .244 -0.042
SLG .37 .376 0.006 .252 -0.124 .152 -0.1 .256 0.104
K% 18.7 24.3 5.6 22.8 -1.5 36.8 14 28.3 -8.5
BB% 16.5 6.9 -9.6 9.5 2.6 13.2 3.7 13 -0.2
Swing % 40.6 43.5 2.9 47.3 3.8 38.7 -8.6 42.8 4.1
Whiff% 28.9 23.8 -5.1 24.2 0.4 35 10.8 28.7 -6.3
In Zone % 44.1 50.7 6.6 51.2 0.5 44.5 -6.7 45.5 1
Out of Zone % 55.9 49.3 -6.6 48.8 -0.5 55.5 6.7 54.5 -1
Out of Zone Swing % 23.9 24.3 0.4 27.4 3.1 29.1 1.7 26.5 -2.6
First Pitch Swing % 15.4 25 9.6 25.1 0.1 18.4 -6.7 19.6 1.2
First Pitch Strike % 50.5 53.5 3 58.9 5.4 57.9 -1 50 -7.9
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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 .328 87 3 3.4 57 11 19.3
2019 254 .241 161 6 3.7 93 15 16.1
2020 38 .208 25 0 0.0 13 2 15.4
2021 46 .298 27 0 0.0 19 2 10.5

Pitch Distribution