Blue Notes · Umpire Grade2026-05-25
STL @ MIL
Home plate: Marvin Hudson
“Down the middle. Both dugouts had the same zone.”
Umpire Grade
96.0% accurate
Run Favor
runs, STL
ABS Overturns
of 2 reviewed
What this shows — how Marvin Hudson called the 150 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 144 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▼3 · 1-2 ball called strike
William Contreras vs Matthew Liberatore - 2+0.13▲5 · 1-0 strike called ball
Bryan Torres vs Jacob Misiorowski - 3+0.13▲7 · 1-0 strike called ball
Masyn Winn vs Jacob Misiorowski
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.
- 1Pedro Pagés — ump said strike, robot ruled ball: overturned.
- 2Victor Scott II — ump said strike, robot ruled strike: upheld.
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.