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Major League Baseball PLAYER PROFILE

Aaron Bummer

Kansas City Royals · Pitcher · #36

Aaron Bummer is a pitcher for Kansas City Royals. Bats left. Throws left. MLB debut: 2017-07-27.

2026 season · Major League Baseball

ERA8.82
WHIP1.96
W-L1-1
G20
GS0
IP16.1
SO13
BB10
K/97.16
BB/95.51
HR/93.86

Career totals

ERA4.00
WHIP1.34
W-L22-21
G407
GS2
IP398.0
SO442
SV5

Advanced profile

BABIP.288
HR/93.86
P/IP18.86

Fielding

FLD%1.000
G20
GS0
INN16.1
PO0
A3
E0
DP0

Bio

Age32
Height6' 3"
Weight215
BatsLeft
ThrowsLeft
BornValencia, USA
Draft2014
MLB debut2017-07-27
StatusActive

Last 8 games

DateOpponentPerformance
2026-08-02at Colorado Rockies1.0 IP · 0 SO · 3 ER · 25 pitches
2026-05-18at Miami Marlins1.0 IP · 1 SO · 6 ER · 42 pitches
2026-05-14vs Chicago Cubs1.1 IP · 1 SO · 0 ER · 14 pitches
2026-05-08at Los Angeles Dodgers1.0 IP · 0 SO · 0 ER · 9 pitches
2026-05-04at Seattle Mariners0.2 IP · 1 SO · 0 ER · 14 pitches
2026-05-03at Colorado Rockies1.0 IP · 2 SO · 2 ER · 16 pitches
2026-04-30vs Detroit Tigers0.2 IP · 1 SO · 0 ER · 12 pitches
2026-04-28vs Detroit Tigers1.0 IP · 0 SO · 2 ER · 12 pitches

Recent transactions

2026-08-02 · Selected

Kansas City Royals selected the contract of LHP Aaron Bummer from Omaha Storm Chasers.

2026-07-21 · Signed as Free Agent

Kansas City Royals signed free agent LHP Aaron Bummer to a minor league contract.

2026-07-21 · Assigned

LHP Aaron Bummer assigned to Omaha Storm Chasers.

2026-07-16 · Released

Iowa Cubs released LHP Aaron Bummer.

2026-06-30 · Assigned

LHP Aaron Bummer assigned to Iowa Cubs from ACL Cubs.

2026-06-20 · Status Change

ACL Cubs activated LHP Aaron Bummer.

2026-06-01 · Signed as Free Agent

Chicago Cubs signed free agent LHP Aaron Bummer to a minor league contract.

2026-06-01 · Assigned

LHP Aaron Bummer assigned to ACL Cubs.

Professional statistics are supplied by MLB Stats API across affiliated levels and may be served from Atlas Harbor’s 24-hour cache. Prospect rankings and scouting information are shown only when a verified enrichment source is available.