Blue Notes · Umpire Grade2026-04-23
CWS @ AZ
Home plate: Cory Blaser
“Nothing off the plate, and not much on the black either.”
Umpire Grade
93.3% accurate
Run Favor
runs, AZ
ABS Overturns
of 7 reviewed
What this shows — how Cory Blaser called the 149 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 139 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
- 1-0.21▲2 · 3-0 ball called strike
Sam Antonacci vs Michael Soroka - 2-0.20▲7 · 2-1 ball called strike
Andrew Benintendi vs Kevin Ginkel - 3+0.19▼5 · 2-0 strike called ball· challenged
Alek Thomas vs Davis Martin
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
7 pitches went to the robots · 3 overturned (ump overruled) · 4 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Alek Thomas — ump said ball, robot ruled strike: overturned.
- 2Reese McGuire — ump said ball, robot ruled ball: upheld.
- 3Ildemaro Vargas — ump said ball, robot ruled strike: overturned.
- 4Alek Thomas — ump said strike, robot ruled strike: upheld.
- 5Chase Meidroth — ump said ball, robot ruled strike: overturned.
- 6Jorge Barrosa — ump said strike, robot ruled strike: upheld.
- 7Edgar Quero — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 3 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.