ACL White Sox· #36· Pitcher
Aaron Bummer “Bum”
Bats L · Throws L·Age 32 (Sep 21, 1993)·6' 3", 215 lb·Valencia, CA, USA
2026 Pitching
ERA
10.26
WHIP
2.10
IP
16.2
K%
14.8
BB%
12.5
K/9
7.02
W-L
1-2
GS
0
SV
0
HLD
5
DiamondIQ WAR
16.7 IP · 2026
-0.9
-8.9 runs above replacement
FIP · 9.140.0
vs replacement · RP, 16.7 IP-8.9
FIP-based runs above replacement, park-adjusted, scaled by innings over runs-per-win. Reliever leverage is simplified (v1). Full methodology.
Pitch Arsenal · Statcast
Sinker39% · 90.3 · 12% whiff
Sweeper22% · 80.6 · 33% whiff
Curveball21% · 80.2 · 17% whiff
Cutter10% · 87.7 · 20% whiff
Four-Seam8% · 90.6 · 13% whiff
Career Pitching
| Yr | Tm | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | — | 1 | 2 | 10.26 | 21 | 0 | 0 | 16.2 | 13 | 11 | 2.10 | 7.02 |
| 2026 | Kansas City Royals | 0 | 1 | 40.50 | 2 | 0 | 0 | 1.1 | 0 | 1 | 5.25 | 0.00 |
| 2026 | Atlanta Braves | 1 | 1 | 7.63 | 19 | 0 | 0 | 15.1 | 13 | 10 | 1.83 | 7.63 |
| 2025 | Atlanta Braves | 3 | 2 | 3.81 | 42 | 2 | 0 | 54.1 | 51 | 17 | 1.25 | 8.45 |
| 2024 | Atlanta Braves | 4 | 3 | 3.58 | 56 | 0 | 0 | 55.1 | 69 | 18 | 1.43 | 11.22 |
Recent Games
Aug 6 vs Minnesota TwinsL
0.1 IP, 3 ER, 0 K, 1 BB
Aug 2 @ Colorado RockiesL
1.0 IP, 3 ER, 0 K, 0 BB
May 18 @ Miami MarlinsL
1.0 IP, 6 ER, 1 K, 5 BB
May 14 vs Chicago CubsL
1.1 IP, 0 ER, 1 K, 0 BB
May 8 @ Los Angeles DodgersL
1.0 IP, 0 ER, 0 K, 0 BB
May 4 @ Seattle MarinersL
0.2 IP, 0 ER, 1 K, 1 BB
May 3 @ Colorado RockiesW
1.0 IP, 2 ER, 2 K, 0 BB
Apr 30 vs Detroit TigersL
0.2 IP, 0 ER, 1 K, 1 BB
Apr 28 vs Detroit TigersW
1.0 IP, 2 ER, 0 K, 0 BB
Apr 26 vs Philadelphia PhilliesW
1.0 IP, 0 ER, 1 K, 0 BB