Blue Notes · Umpire Grade2026-05-04
CWS @ LAA
Home plate: Cory Blaser
“The kind of night where the umpire is the least of the story.”
Umpire Grade
95.1% accurate
Run Favor
runs, CWS
ABS Overturns
of 5 reviewed
What this shows — how Cory Blaser called the 143 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 136 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+0.28▲9 · 1-2 strike called ball
Andrew Benintendi vs Brent Suter - 2-0.19▲1 · 2-0 ball called strike
Chase Meidroth vs José Soriano - 3+0.13▲3 · 1-1 strike called ball
Chase Meidroth vs José Soriano
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
5 pitches went to the robots · 1 overturned (ump overruled) · 4 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Sam Antonacci — ump said strike, robot ruled strike: upheld.
- 2Travis d'Arnaud — ump said strike, robot ruled ball: overturned.
- 3Travis d'Arnaud — ump said ball, robot ruled ball: upheld.
- 4Travis d'Arnaud — ump said strike, robot ruled strike: upheld.
- 5Derek Hill — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 3 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.