Blue Notes · Umpire Grade2026-05-13
TB @ TOR
Home plate: Erich Bacchus
“The zone leaned, and the ledger noticed.”
Umpire Grade
89.9% accurate
Run Favor
runs, TOR
ABS Overturns
of 6 reviewed
What this shows — how Erich Bacchus called the 178 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 160 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+0.69▲6 · 3-2 strike called ball
Chandler Simpson vs Dylan Cease - 2+0.69▼10 · 3-2 strike called ball
Kazuma Okamoto vs Aaron Brooks - 3-0.39▲1 · 2-2 ball called strike
Jonathan Aranda vs Dylan Cease
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
6 pitches went to the robots · 4 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Hunter Feduccia — ump said strike, robot ruled ball: overturned.
- 2Hunter Feduccia — ump said ball, robot ruled ball: upheld.
- 3Tyler Heineman — ump said strike, robot ruled ball: overturned.
- 4Hunter Feduccia — ump said strike, robot ruled ball: overturned.
- 5Brandon Valenzuela — ump said ball, robot ruled strike: overturned.
- 6Hunter Feduccia — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 3 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.