Blue Notes · Umpire Grade2026-06-12
SEA @ WSH
Home plate: Cory Blaser
“Solid and unspectacular — exactly what the job asks.”
Umpire Grade
93.0% accurate
Run Favor
runs, WSH
ABS Overturns
of 1 reviewed
What this shows — how Cory Blaser called the 115 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 107 right. Below, only his misses are plotted, alongside every pitch the ABS (Automated Ball-Strike System) reviewed on a challenge.
The zone, as he called it
strike called ballball called strikeABS overturnedABS upheld
The calls that moved the game
- 1-0.20▲4 · 2-1 ball called strike
Jhonny Pereda vs Riley Cornelio - 2+0.20▼4 · 2-1 strike called ball
James Wood vs Bryce Miller - 3-0.20▲8 · 2-1 ball called strike
Jhonny Pereda vs Paxton Schultz
Run impact from the count run-value table: a missed strike three is worth far more than one on 3-0.
ABS — the Automated Ball-Strike System
1 pitch went to the robots · 1 overturned (ump overruled) · 0 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Keibert Ruiz — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 0 of 1 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.