Blue Notes · Umpire Grade2026-09-05
“Nothing off the plate, and not much on the black either.”
Umpire Grade
89.1% accurate
Run Favor
runs, HOU
ABS Overturns
of 5 reviewed
What this shows — how Laz Diaz called the 165 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 147 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
- 1-0.30▲1 · 3-1 ball called strike
Lars Nootbaar vs Ethan Pecko - 2-0.23▲7 · 0-2 ball called strike· challenged ✓
Gabriel Moreno vs AJ Blubaugh - 3-0.20▲2 · 2-1 ball called strike· challenged ✓
Corbin Carroll vs Ethan Pecko
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
5 pitches went to the robots · 3 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Corbin Carroll — ump said strike, robot ruled ball: overturned.
- 2Gabriel Moreno — ump said ball, robot ruled ball: upheld.
- 3Yainer Diaz — ump said ball, robot ruled strike: overturned.
- 4Gabriel Moreno — ump said strike, robot ruled ball: overturned.
- 5Jose Altuve — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 5 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.