Blue Notes · Umpire Grade2026-05-24
HOU @ CHC
Home plate: Bill Miller
“The zone showed up, did the job, and went home. Ideal.”
Umpire Grade
96.4% accurate
Run Favor
runs, HOU
ABS Overturns
of 3 reviewed
What this shows — how Bill Miller called the 168 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 162 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+0.39▼5 · 2-2 strike called ball
Seiya Suzuki vs Peter Lambert - 2+0.28▲6 · 1-2 strike called ball
Cam Smith vs Shota Imanaga - 3-0.21▼9 · 3-0 ball called strike
Pete Crow-Armstrong vs Nate Pearson
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
3 pitches went to the robots · 1 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Michael Busch — ump said strike, robot ruled strike: upheld.
- 2Zach Dezenzo — ump said ball, robot ruled strike: overturned.
- 3Christian Vázquez — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.