Blue Notes · Umpire Grade2026-08-29
“The zone had wings tonight.”
Umpire Grade
94.8% accurate
Run Favor
runs, ATL
ABS Overturns
of 1 reviewed
What this shows — how Ron Kulpa called the 135 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 128 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
- 1-0.21▲9 · 3-0 ball called strike
Willi Castro vs Didier Fuentes - 2-0.13▲6 · 1-0 ball called strike
Hunter Goodman vs Martín Pérez - 3-0.13▼7 · 1-0 ball called strike
Lane Thomas vs Jaden Hill
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
1 pitch went to the robots · 0 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Hunter Goodman — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 1 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.