Blue Notes · Umpire Grade2026-09-15
“You could set a watch by that zone.”
Umpire Grade
98.3% accurate
Run Favor
runs, COL
ABS Overturns
of 2 reviewed
What this shows — how Alex Tosi called the 120 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 118 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▼1 · 1-1 strike called ball
Cole Carrigg vs Walker Buehler - 2-0.09▼8 · 0-0 ball called strike
Cole Carrigg vs Randy Vásquez
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 · 0 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Luis Campusano — ump said ball, robot ruled ball: upheld.
- 2Cole Carrigg — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.