Blue Notes · Umpire Grade2026-05-01
“Textbook top to bottom — a quiet masterclass.”
Umpire Grade
97.6% accurate
Run Favor
runs, NYM
ABS Overturns
of 3 reviewed
What this shows — how Ben May called the 124 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 121 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▲4 · 1-0 strike called ball
Juan Soto vs Walbert Ureña - 2-0.13▲7 · 1-0 ball called strike
Ronny Mauricio vs José Fermin - 3+0.09▲8 · 0-0 strike called ball
Francisco Alvarez vs Nick Sandlin
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 · 0 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Jo Adell — ump said strike, robot ruled strike: upheld.
- 2Francisco Alvarez — ump said ball, robot ruled ball: upheld.
- 3Jorge Soler — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 3 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.