Blue Notes · Umpire Grade2026-06-03
PIT @ HOU
Home plate: Chris Guccione
“A workmanlike night — nothing to frame, nothing to fix.”
Umpire Grade
96.6% accurate
Run Favor
runs, PIT
ABS Overturns
of 5 reviewed
What this shows — how Chris Guccione called the 238 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 230 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+0.28▲6 · 1-2 strike called ball
Jared Triolo vs Bryan King - 2+0.13▲6 · 1-1 strike called ball
Oneil Cruz vs Alimber Santa - 3+0.13▲8 · 1-1 strike called ball
Nick Gonzales vs AJ Blubaugh
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 · 1 overturned (ump overruled) · 4 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Marcell Ozuna — ump said strike, robot ruled strike: upheld.
- 2Spencer Horwitz — ump said strike, robot ruled strike: upheld.
- 3Christian Vázquez — ump said ball, robot ruled ball: upheld.
- 4Christian Vázquez — ump said strike, robot ruled ball: overturned.
- 5Christian Vázquez — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 4 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.