Blue Notes · Umpire Grade2026-03-31
LAA @ CHC
Home plate: Chris Guccione
“The black wasn't in play tonight.”
Umpire Grade
91.2% accurate
Run Favor
runs, LAA
ABS Overturns
of 3 reviewed
What this shows — how Chris Guccione called the 171 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 156 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+0.39▲1 · 2-2 strike called ball
Zach Neto vs Jameson Taillon - 2+0.23▼4 · 0-2 strike called ball
Dansby Swanson vs José Soriano - 3-0.19▼2 · 2-0 ball called strike
Dansby Swanson vs José Soriano
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 · 1 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Logan O'Hoppe — ump said strike, robot ruled ball: overturned.
- 2Miguel Amaya — ump said ball, robot ruled ball: upheld.
- 3Logan O'Hoppe — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.