Blue Notes · Umpire Grade2026-05-01
BAL @ NYY
Home plate: Malachi Moore
“Solid and unspectacular — exactly what the job asks.”
Umpire Grade
94.3% accurate
Run Favor
runs, NYY
ABS Overturns
of 4 reviewed
What this shows — how Malachi Moore called the 176 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 166 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+0.13▼5 · 1-1 strike called ball
Jazz Chisholm Jr. vs Albert Suárez - 2+0.13▼7 · 1-1 strike called ball
Jazz Chisholm Jr. vs Albert Suárez - 3-0.13▲9 · 1-0 ball called strike
Samuel Basallo vs Jake Bird
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 · 3 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Austin Wells — ump said strike, robot ruled ball: overturned.
- 2Samuel Basallo — ump said ball, robot ruled strike: overturned.
- 3Austin Wells — ump said strike, robot ruled ball: overturned.
- 4Austin Wells — ump said ball, robot ruled ball: 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.