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Aaron Bummer
RP · 
Kansas City Royals · #36
Bats/ThrowsL/L
Height6' 3"
Weight215 lbs
BirthplaceValencia, CA
MLB Debut2016
Draft2014: Rd 19, Pk 558 (CHW)
🪪Bio
Bats/ThrowsL/L
Height6' 3"
Weight215 lbs
BirthplaceValencia, CA
MLB Debut2016
CollegeNebraska
Draft2014: Rd 19, Pk 558 (CHW)
📊Season Stats (2026)
ERA10.26
W-L1-2
IP16.2
K13
WHIP2.10
SV0
Full Stat Line
G21
GS0
QS0
HLD5
H24
ER19
HR7
BB11
K/97.02
WAR-1.28
🤚Career Splits by Handedness
vs Left-Handed Batters
AVG.360
OBP.467
SLG.880
OPS1.347
vs Right-Handed Batters
AVG.364
OBP.423
SLG.636
OPS1.059
Career totals from real plate-appearance data — lower OPS allowed is better for a pitcher.
⚔️This Season vs. Each Opponent
| Opponent | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
vs. PHI
|
0.00 | 2.1 | 1 | 0 | .273 |
vs. COL
|
22.50 | 2.0 | 2 | 0 | .583 |
vs. MIA
|
40.50 | 2.0 | 3 | 5 | .538 |
vs. DET
|
10.80 | 1.2 | 1 | 1 | .333 |
vs. CHC
|
0.00 | 1.1 | 1 | 0 | .000 |
vs. LAA
|
0.00 | 1.1 | 1 | 1 | .000 |
vs. WSH
|
0.00 | 1.1 | 1 | 0 | .000 |
vs. CLE
|
0.00 | 1.0 | 0 | 2 | .000 |
vs. LAD
|
0.00 | 1.0 | 0 | 0 | .000 |
vs. OAK
|
0.00 | 1.0 | 2 | 0 | .250 |
|
vs. KC
|
0.00 | 0.2 | 0 | 0 | .000 |
vs. SEA
|
0.00 | 0.2 | 1 | 1 | .500 |
vs. MIN
|
81.00 | 0.1 | 0 | 1 | .667 |
🏟️This Season at Each Ballpark
| Ballpark | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Total | 10.26 | 16.2 | 13 | 11 | .324 |
| Coors Field | 22.50 | 2.0 | 2 | 0 | .583 |
| Angel Stadium | 0.00 | 1.1 | 1 | 1 | .000 |
| Nationals Park | 0.00 | 1.1 | 1 | 0 | .000 |
| Dodger Stadium | 0.00 | 1.0 | 0 | 0 | .000 |
| Marlins Park | 54.00 | 1.0 | 1 | 5 | .500 |
| Safeco Field | 0.00 | 0.2 | 1 | 1 | .500 |
| Citizens Bank Park | 0.00 | 0.1 | 0 | 0 | .500 |
| Kauffman Stadium | 81.00 | 0.1 | 0 | 1 | .667 |
📅By Month & Recent Form
| Split | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Last 7 Days | 81.00 | 0.1 | 0 | 1 | .667 |
| Last 15 Days | 81.00 | 0.1 | 0 | 1 | .667 |
| Last 30 Days | 81.00 | 0.1 | 0 | 1 | .667 |
| March | 0.00 | 1.2 | 2 | 0 | .143 |
| April | 5.19 | 8.2 | 6 | 4 | .257 |
| May | 14.40 | 5.0 | 5 | 6 | .364 |
| August | 40.50 | 1.1 | 0 | 1 | .600 |
🎯Pitch Arsenal (2026)
| Type | Pitches | Usage% | Zone% | Chase% | Whiff% | BA | wOBA | xwOBA |
|---|---|---|---|---|---|---|---|---|
| Sinker | 127 | 38.7% | 17.3% | 35.3% | 11.8% | .400 | .570 | .496 |
| Curveball | 76 | 23.2% | 6.6% | 50.0% | 12.5% | .273 | .900 | .479 |
| Sweeper | 65 | 19.8% | 21.5% | 0.0% | 0.0% | .333 | .320 | .374 |
| Cutter | 33 | 10.1% | 9.1% | 40.0% | 40.0% | .000 | .175 | .187 |
| 4-Seam Fastball | 27 | 8.2% | 14.8% | 0.0% | 0.0% | .500 | 1.000 | .643 |
🌀Pitch Movement (2026)
| Type | # | Velo | Spin | IVB | H-Break | Ext |
|---|---|---|---|---|---|---|
| Sinker | 87 | 90.4 | 2,024 | +0.0" | -1.2" | 6.5 |
| Sweeper | 47 | 80.6 | 2,301 | -0.5" | +1.1" | 6.4 |
| Curveball | 45 | 80.5 | 2,303 | -7.5" | +1.0" | 6.5 |
| Cutter | 20 | 88.0 | 2,154 | +7.8" | -0.1" | 6.4 |
| 4-Seam Fastball | 15 | 90.5 | 2,168 | +10.1" | -0.7" | 6.5 |
IVB = induced vertical break (gravity removed) · H-Break = horizontal movement · Ext = release extension in feet.
📋Recent Game Log
| Date | Opp | Score | IP | H | ER | BB | K | ERA | PC | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L | Thursday, August 6, 2026 |
MIN
|
4-3 | 0.1 | 2 | 3 | 1 | 0 | 10.26 | 20 | L |
| L | Sunday, August 2, 2026 |
COL
|
1-8 | 1.0 | 4 | 3 | 0 | 0 | 8.82 | 25 | — |
| L | Monday, May 18, 2026 |
MIA
|
0-12 | 1.0 | 3 | 6 | 5 | 1 | 7.63 | 42 | — |
| W | Thursday, May 14, 2026 |
ATL
|
2-0 | 1.1 | 0 | 0 | 0 | 1 | 4.40 | 14 | — |
| L | Friday, May 8, 2026 |
LAD
|
1-3 | 1.0 | 0 | 0 | 0 | 0 | 4.85 | 9 | — |
| L | Monday, May 4, 2026 |
SEA
|
4-5 | 0.2 | 2 | 0 | 1 | 1 | 5.25 | 14 | — |
| W | Sunday, May 3, 2026 |
COL
|
11-6 | 1.0 | 3 | 2 | 0 | 2 | 5.56 | 16 | W |
| W | Thursday, April 30, 2026 |
ATL
|
5-2 | 0.2 | 0 | 0 | 1 | 1 | 4.35 | 12 | — |
| L | Tuesday, April 28, 2026 |
ATL
|
2-5 | 1.0 | 2 | 2 | 0 | 0 | 4.66 | 12 | — |
| L | Sunday, April 26, 2026 |
ATL
|
2-6 | 1.0 | 1 | 0 | 0 | 1 | 3.12 | 25 | — |
👥Team — Kansas City Royals
| Player | Pos | Key Stat |
|---|---|---|
| Vinnie Pasquantino | 1B | .240 AVG |
| Michael Massey | 2B | .278 AVG |
| Maikel Garcia | 3B | .269 AVG |
| Nick Loftin | 3B | .235 AVG |
| Josh Rojas | 3B | 0.00 ERA |
| Carter Jensen | C | .229 AVG |
| Luke Maile | C | 0.00 ERA |
| Kyle Isbel | CF | .226 AVG |
| Salvador Perez | DH | .228 AVG |
| Isaac Collins | LF | .221 AVG |
| Matthew Lugo | LF | .250 AVG |
| Drew Waters | LF | .243 AVG |
| Nick Mears | Relief Pitcher | 5.12 ERA |
| Jac Caglianone | RF | .283 AVG |
| Starling Marte | RF | .242 AVG |
| John Rave | RF | .233 AVG |
| Luinder Avila | RP | 5.53 ERA |
| Mason Black | RP | 4.31 ERA |
| Steven Cruz | RP | 4.12 ERA |
| Jose Cuas | RP | 2.50 ERA |
| Lucas Erceg | RP | 6.23 ERA |
| Anthony Gose | RP | 0.00 ERA |
| Nolan Hoffman | RP | 5.00 ERA |
| Craig Kimbrel | RP | 4.43 ERA |
| Alex Lange | RP | 5.98 ERA |
| Daniel Lynch IV | RP | 3.52 ERA |
| Easton McGee | RP | 6.97 ERA |
| Eli Morgan | RP | 5.12 ERA |
| Nate Pearson | RP | 2.03 ERA |
| Matt Strahm | RP | 7.32 ERA |
| Connor Thomas | RP | 10.34 ERA |
| Beck Way | RP | 3.86 ERA |
| Jonathan India | Second Baseman | .167 AVG |
| Noah Cameron | SP | 3.93 ERA |
| Randy Dobnak | SP | 2.54 ERA |
| Carlos Duran | SP | 13.50 ERA |
| Seth Lugo | SP | 5.04 ERA |
| Michael Wacha | SP | 3.25 ERA |
| Tyler Tolbert | SS | 25.07 ERA |
| Andrew Velazquez | SS | .067 AVG |
| Bobby Witt Jr. | SS | .282 AVG |
| Cole Ragans | Starting Pitcher | 4.84 ERA |
| Mitch Spence | Starting Pitcher | 21.21 ERA |
See the Full Analysis
Key Suspects, player props, DFS rankings, and matchup intelligence for Aaron Bummer and every MLB game — available in the BlowOutAlert workspace.