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Aaron Bummer
P | B/T: L/L | 6' 3" 215LBS | Age: 28

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

Stats

W L ERA G GS SV IP SO WHIP
2021 5 5 3.51 62 0 2 56.1 75 1.26
5 Seasons 7 9 3.13 196 0 3 187.0 201 1.21
G W-L ERA IP SO WHIP
2021 62 5-5 3.51 56.1 75 1.26
5 Seasons 196 7-9 3.13 187.0 201 1.21

Statcast Statistics

Season Age Pitches Batted Balls Barrels Barrel % Exit Velocity Max EV Launch Angle Sweet Spot % XBA XSLG WOBA XWOBA XWOBACON HardHit% K% BB% ERA xERA
2017 24 374 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 4.83
2018 25 609 98 7 7.1 90.7 109.8 0.7 30.6 .263 .372 .323 .308 .375 42.9 24.3 6.9 4.26 4.06
2019 26 1039 175 4 2.3 89.4 110.3 -2.9 17.7 .181 .255 .235 .239 .254 38.8 22.8 9.5 2.13 2.53
2020 27 155 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 28 962 134 4 3 88.3 110.9 -10.6 14.9 .179 .246 .257 .252 .294 42.4 31 12 3.52 2.68
3139 484 20 4.1 89.3 111.3 -3.6 20.2 .200 .290 .265 .268 .302 40.3 25.8 10.8
6.6 88.3 122.2 12 32.9 .242 .402 .317 .312 .363 35.6 22 8.4

Statcast Pitch Arsenal

Bummer relies on 4 pitches.
Sinker
(62%) ,
Slider
(29.6%) ,
Cutter
(7.8%) ,
Changeup
(0.6%) ,


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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 591 426 165 62.0 95.4 136 113 31 28 1 0 2 11 103 .274 .252 .336 .334 .332 .331 89.9 -15 2000 6.1 17.1 12.1
2021 Slider 282 194 88 29.6 83.0 92 85 8 8 0 0 0 62 23 .094 .074 .094 .086 .130 .119 80.7 2 2471 6.0 52.2 32.3
2021 Cutter 74 40 34 7.8 88.1 8 8 3 2 0 0 1 2 6 .375 .301 .750 .776 .471 .445 91.0 12 2266 5.9 52.8 20.0
2021 Changeup 6 6 0 0.6 88.5 1326 6.1
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 76.9 9.7 11.2 2.2 29.1 39.6 31.3 7.5 53 9 23.1 2.2 3
69.2 11.6 16.3 2.9 32.2 39.9 27.9 4.1 55 10.5 20 3.9 4.1
45.1 22.5 25.4 7.1 36.6 37.8 25.5 3.7 33.2 24.4 24.4 5.7 6.6

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 Changeup CWS L 6 88.5 37 7.1 24 13.7 -1.1 -8
2021 Slider CWS L 281 83 45.1 6.3 16 17.9 10.2 133
2021 Sinker CWS L 584 95.4 29.2 7.8 37 15.4 0.1 1
2021 Cutter CWS L 74 88.1 33.8 -6.1 -22 1.5 -0.5 -26
2020 Slider CWS L 9 83.7 44.7 6.6 17 16.4 10.5 176
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 -23
2019 Cutter CWS L 200 87.9 35.8 -7.2 -25 3.4 1.1 49
2019 Slider CWS L 33 84.9 36 -1.1 -3 14.4 9.1 173
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 Sinker CWS L 688 95.6 27.3 6.4 31 12.2 -3 -20
2018 Slider CWS L 117 82.9 45.1 5.2 13 5.6 -0.1 -3
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 4-Seamer CWS L 64 92.8 20.6 -4.3 -27 6.9 -0.5 -6
2018 Changeup CWS L 23 87.3 35.7 5.7 19 12.3 -1.5 -11
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 -0.9 -12
2017 Sinker CWS L 168 93.2 26.3 6 29 12.3 -2.7 -18
2017 Slider CWS L 138 83 42.7 4.6 12 7.4 2.1 40
! 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 0.4 0 74 7.7 8 .375 .75 .475 52.8 25 20 .301 .776 .445 33.3
2021 Slider -2.8 -8 282 29.3 92 .094 .094 .139 52.2 67.4 32.3 .074 .086 .126 21.7
2021 Sinker 0.3 2 591 61.4 136 .274 .336 .35 17.1 8.1 12.1 .252 .334 .332 47.6
2021 Changeup 1.1 0 6 0.6 0
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 -2.9 0 6 0.6 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 0.9 1 89 8.6 20 .353 .529 .43 24.4 20 13.8 .245 .413 .338 41.7
2019 Cutter -1.9 -4 208 20 51 .087 .109 .16 47.2 47.1 25 .124 .171 .196 31.8
2019 Sinker -2.6 -18 703 67.7 183 .195 .268 .266 16.1 15.8 17 .193 .266 .249 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 .274 .35 .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 72 88 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 82 20.2 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 252 1012 -9 -6 7 3 -5
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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 962 48.3 60.7 81.7 25.8 35.4 40.2 59.9 42.4 31.9 7.6 69.4
3139 49 62.5 82.9 25.9 46.6 40 57.2 43.8 27.4 8 70.4
48.5 66.8 82 28.3 58.5 42.6 60.6 47 24.6 7.2 76

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 98 95 100 100 91 99 99 28 29 51 29 42 98 69 12
2020
2021 95 96 99 99 73 99 98 60 22 89 12 85 95 72 9
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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
2021 23.7 3 3 0 1 1 2 66.7

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
2021 3 3 3 3 3 3 3 3 3 3 4 3 3 3 3 3 3 3 2 3 3 3 3 3 3 3 3 3 3 3 3
! 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 94.6 -0.4
Offspeed Velocity 88.5 87.3 -1.2 89.9 2.6 0 0 88.5 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 88.3 -5.9
Launch Angle 4.4 .7 -3.7 -2.9 -3.6 -8.7 -5.8 -10.6 -1.9
Barrel % 6.9 7.1 0.2 2.3 -4.8 5.3 3 3 -2.3
Hard Hit % 32.8 42.9 10.1 38.8 -4.1 47.4 8.6 42.4 -5
Sweet Spot % 22.4 30.6 8.2 17.7 -12.9 21.1 3.4 14.9 -6.2
xBA .222 .263 0.041 .181 -0.082 .173 -0.008 .179 0.006
BA .178 .301 0.123 .184 -0.117 .152 -0.032 .202 0.05
xwOBA .33 .308 -0.022 .239 -0.069 .262 0.023 .252 -0.01
wOBA .303 .323 0.02 .235 -0.088 .208 -0.027 .257 0.049
xSLG .378 .372 -0.006 .255 -0.117 .286 0.031 .246 -0.04
SLG .37 .376 0.006 .252 -0.124 .152 -0.1 .25 0.098
K% 18.7 24.3 5.6 22.8 -1.5 36.8 14 31 -5.8
BB% 16.5 6.9 -9.6 9.5 2.6 13.2 3.7 12 -1.2
Swing % 40.6 43.5 2.9 47.3 3.8 38.7 -8.6 42.4 3.7
Whiff% 28.9 23.8 -5.1 24.2 0.4 35 10.8 31.9 -3.1
In Zone % 44.1 50.7 6.6 51.2 0.5 44.5 -6.7 48.3 3.8
Out of Zone % 55.9 49.3 -6.6 48.8 -0.5 55.5 6.7 51.7 -3.8
Out of Zone Swing % 23.9 24.3 0.4 27.4 3.1 29.1 1.7 25.8 -3.3
First Pitch Swing % 15.4 25 9.6 25.1 0.1 18.4 -6.7 24.8 6.4
First Pitch Strike % 50.5 53.5 3 58.9 5.4 57.9 -1 59.9 2
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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 254 .238 161 6 3.7 93 15 16.1
2020 38 .208 25 0 0.0 13 2 15.4
2021 236 .258 163 2 1.2 73 6 8.2

Pitch Distribution