Biographical

Portrait of Aaron Bummer

Aaron Bummer PWhite Sox

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2019 Projections (Preseason PECOTA - seasonal age 25)
IP ERA WHIP SO W L SV WARP
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Birth Date9-21-1993
Height6' 3"
Weight215 lbs
Age31 years, 4 months, 27 days
BatsL
ThrowsL
2015
2016
-0.22017
0.42018
0.12019
proj
WARP Summary

MLB Statistics

Historical (past-seasons) WARP is now based on DRA..
cFIP and DRA are not available on a by-team basis and display as zeroes(0). See TOT line for season totals of these stats.
Multiple stints are are currently shown —Click to hide.
YEAR Team Lg G GS IP W L SV H BB SO HR PPF H/9 BB/9 HR/9 K/9 GB% BABIP WHIP FIP ERA cFIP DRA DRA- WARP
2017 CHA MLB 30 0 22.0 1 3 0 13 15 17 4 5.3 6.1 1.6 7.0 57% .167 1.27 6.14 4.50 120 5.95 126.7 -0.2
2018 CHA MLB 37 0 31.7 0 1 0 40 10 35 1 103 11.4 2.8 0.3 9.9 62% .402 1.58 2.43 4.26 94 3.71 82.8 0.4
2019 CHA MLB 58 0 67.7 0 0 1 43 24 60 4 101 5.7 3.2 0.5 8.0 71% .228 0.99 3.44 2.13 84 2.99 61.4 1.7
CareerMLB1250121.314196491129837.13.60.78.366%.2701.203.663.12943.7178.82.0

Statistics for All Levels

'opp' stats - Quality of opponents faced - have been moved and are available only as OPP_QUAL in the Statistics reports now.
Minor league stats are currently shown —Click to hide.
YEAR Team Lg LG G GS IP W L SV H BB SO HR PPF H/9 BB/9 HR/9 K/9 GB% BABIP WHIP FIP ERA cFIP DRA DRA-
2014 GRF Rk PIO 16 0 22.0 0 0 1 18 6 28 1 7.4 2.5 0.4 11.5 0% .327 1.09 3.14 2.45 78 2.77 58.7
2016 WNS A+ CAR 4 0 5.0 0 1 0 4 1 1 0 7.2 1.8 0.0 1.8 70% .200 1.00 3.74 1.80 108 3.28 72.3
2016 GRF Rk PIO 7 0 8.0 1 1 0 7 4 11 0 7.9 4.5 0.0 12.4 45% .350 1.38 3.09 3.38 87 3.26 72.0
2016 WSX Rk AZL 4 0 3.7 0 0 0 5 2 6 0 12.3 4.9 0.0 14.7 70% .500 1.91 2.47 12.27 91 5.64 124.6
2017 CHA MLB AL 30 0 22.0 1 3 0 13 15 17 4 5.3 6.1 1.6 7.0 57% .167 1.27 6.14 4.50 120 5.95 126.7
2017 WNS A+ CAR 8 0 11.0 0 2 2 10 3 15 2 8.2 2.5 1.6 12.3 59% .296 1.18 3.85 4.91 80 3.40 72.3
2017 BIR AA SOU 17 1 33.0 1 3 3 29 16 34 2 96 7.9 4.4 0.5 9.3 56% .318 1.36 3.29 3.00 98 4.87 103.6
2017 CHR AAA INT 3 0 5.0 0 0 0 5 1 5 0 9.0 1.8 0.0 9.0 79% .357 1.20 1.94 1.80 76 4.05 86.1
2018 CHA MLB AL 37 0 31.7 0 1 0 40 10 35 1 103 11.4 2.8 0.3 9.9 62% .402 1.58 2.43 4.26 94 3.71 82.8
2018 CHR AAA INT 31 0 30.7 2 3 0 27 11 30 0 7.9 3.2 0.0 8.8 67% .310 1.24 2.45 2.64 90 3.82 80.8
2019 CHA MLB AL 58 0 67.7 0 0 1 43 24 60 4 101 5.7 3.2 0.5 8.0 71% .228 0.99 3.44 2.13 84 2.99 61.4
2019 CHR AAA INT 5 0 7.7 0 0 0 7 2 6 0 8.2 2.3 0.0 7.0 96% .304 1.17 3.23 2.35 100 3.49 71.8

Plate Discipline

YEAR Pits Zone% Swing% Contact% Z-Swing% O-Swing% Z-Contact% O-Contact% SwStr%
2017 391 0.4066 0.3811 0.7114 0.5283 0.2802 0.8690 0.5077 0.2886
2018 609 0.4598 0.4302 0.7557 0.5786 0.3040 0.8951 0.5300 0.2443
2019 1031 0.4956 0.4675 0.7552 0.6380 0.3000 0.8436 0.5705 0.2448
Career20310.46770.43970.74690.59910.29740.86390.54630.2531

Injury History  —  No longer being updated

Last Update: 12/31/2014 23:59 ET

Date On Date Off Transaction Days Games Side Body Part Injury Severity Surgery Date Reaggravation

Compensation

Year Team Salary
2026 ATL $
2025 ATL $1,250,000
2024 ATL $5,500,000
2023 CHA $3,750,000
2022 CHA $2,500,000
2021 CHA $2,000,000
2020 CHA $1,000,000
2019 CHA $
2018 CHA $549,000
2017 CHA $
YearsDescriptionSalary
6 yrPrevious$15,299,000
2019Current$1,250,000
7 yrPvs + Cur$16,549,000
7 yrTotal$16,549,000

 

Service TimeAgentContract Status
5 y 150 dO'Connell Sports5 years/$16M (2020-24), 2025-26 options

Details
  • 5 years/$16M (2020-24), plus 2025-26 club option. Signed extension with Chicago White Sox 2/22/20. 20:$1M, 21:$2M, 22:$2.5M, 23:$3.75M, 24:$5.5M, 25:$7.25M club option ($1.25M buyout), 26:$7.5M club option ($1.25M buyout). Acquired by Atlanta in trade from Chicago White Sox 11/16/23.
  • 1 year (2019). Re-signed by Chicago White Sox 3/19.
  • 1 year/$549,000 (2018). Re-signed by Chicago White Sox 2/18.
  • 1 year (2017). Contract selected by Chicago White Sox 7/27/17.
  • Drafted by Chicago White Sox 2014 (19-558) (Nebraska).

2019 Preseason Forecast

Last Update: 1/27/2017 12:35 ET

PCT W L SV G GS IP H BB SO HR BABIP WHIP ERA DRA VORP WARP
90o 0.1 0 0 0 0 16.2 12 7 17 1 .256 1.17 3.07 3.33 0.0 0.0
80o 0.1 0 0 0 0 10.5 8 5 11 1 .273 1.28 3.48 3.77 0.0 0.0
70o 0.1 0 0 0 0 6.6 6 3 7 1 .285 1.36 3.78 4.1 0.0 0.0
60o 0.1 0 0 0 0 3.3 3 2 3 0 .295 1.43 4.06 4.39 -0.1 0.0
50o 0.1 0 0 0 0 0.4 0 0 0 0 .305 1.50 4.31 4.66 -0.1 0.0
Weighted Mean?????0.0?00?.0000.000.00?0.00.0

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BP Annual Player Comments

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BP Articles

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BP Chats

DateQuestionAnswer
2019-05-17 16:00:00 (link to chat)Scenario: CWS trade Colome and Herrera (or he's just ineffective), who's your target? Where are you on Aaron Bummer? Cheers
(KC from Kaufman)		Bummer's probably the arm I want by default, unless Nate Jones magically finds sustained health. I do wonder if Minaya gets the next shot though just because he's been the closer in some past White Sox iteration that I can't even remember anymore. (Mike Gianella)
2018-09-04 19:00:00 (link to chat)Will the White Sox bullpen be stacked with power rookies next year? And what will the rotation look like after Rodon, Kopech, two guys and Giolito?
(Alex Prettyface from Gundergunder)		This is part of why I foresee a path to 2019 contention as hinted at above, even if it's unlikely--and we've seen how conservative teams have gotten when playoff berths appear to be less than 50% in the offseason.

I'm bullish on both Ryan Burr and Ian Hamilton, Jace Fry has already had an excellent 2018 in the majors, and there's reason to think Caleb Frare is already here and effective. There's always attrition in the bullpen, but there's just so many guys here who have flashed ability to be excellent back end options, and it's a strength of the organization. Covey has looked really good in short bursts, Carson Fulmer will have an offseason to prepare solely as a reliever, some of the guys who don't make the rotation, like say, Jordan Stephens may be effective in that role. Nate Jones might come back, Zack Burdi should be in the majors at some point next year, and even the newly promoted Jose Ruiz has an extremely live arm. Kodi Medeiros is still getting to try starting, but I think he could be a late inning reliever as well. Aaron Bummer is a guy they like a lot.

All of these guys individually are risky propositions based on being relievers, health, ability, etc. But collectively I think they just have a flood of in-house options such that this could be a big strength as soon as next year. (Nick Schaefer)


BP Roundtables

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PITCHf/x Pitcher Profile

A Collaboration between BrooksBaseball.net and Baseball Prospectus - Pitch classifications provided by Pitch Info LLC


Aaron Bummer has thrown 5,861 pitches that have been tracked by the PITCHf/x system between 2017 and 2024, all of them occuring in Spring Training. In 2024, he has relied primarily on his Slider (82mph) and Sinker (93mph), also mixing in a Fourseam Fastball (94mph). He also rarely throws a Cutter (88mph), Curve (82mph) and Change (85mph).