Blue Notes · Umpire Grade2026-05-26
STL @ MIL
Home plate: Adam Hamari
“The kind of night where the umpire is the least of the story.”
Umpire Grade
95.4% accurate
Run Favor
runs, MIL
ABS Overturns
of 4 reviewed
What this shows — how Adam Hamari called the 151 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+0.23▲2 · 0-2 strike called ball· challenged
Bryan Torres vs Kyle Harrison - 2-0.19▲2 · 2-0 ball called strike
Masyn Winn vs Kyle Harrison - 3+0.10▼1 · 0-1 strike called ball
Christian Yelich vs Michael McGreevy
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
4 pitches went to the robots · 1 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1William Contreras — ump said strike, robot ruled ball: overturned.
- 2William Contreras — ump said ball, robot ruled ball: upheld.
- 3Abner Uribe — ump said ball, robot ruled ball: upheld.
- 4Alec Burleson — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.