Blue Notes · Umpire Grade2026-05-12
AZ @ TEX
Home plate: Cory Blaser
“Down the middle. Both dugouts had the same zone.”
Umpire Grade
99.3% accurate
Run Favor
runs, TEX
ABS Overturns
of 2 reviewed
What this shows — how Cory Blaser called the 144 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 143 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+0.30▼2 · 3-1 strike called ball
Ezequiel Duran vs Zac Gallen
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
2 pitches went to the robots · 1 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Kyle Higashioka — ump said ball, robot ruled ball: upheld.
- 2Tim Tawa — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 1 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.