Blue Notes · Umpire Grade2026-04-20
TOR @ LAA
Home plate: Brian Walsh
“The challenge cart got its steps in.”
Umpire Grade
90.7% accurate
Run Favor
runs, LAA
ABS Overturns
of 7 reviewed
What this shows — how Brian Walsh called the 150 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 136 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▼5 · 2-2 strike called ball
Jorge Soler vs Dylan Cease - 2+0.30▲7 · 3-1 strike called ball
Myles Straw vs Reid Detmers - 3-0.28▼5 · 1-2 ball called strike
Nolan Schanuel 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
7 pitches went to the robots · 5 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Davis Schneider — ump said ball, robot ruled strike: overturned.
- 2Tyler Heineman — ump said strike, robot ruled ball: overturned.
- 3Yoán Moncada — ump said strike, robot ruled strike: upheld.
- 4Logan O'Hoppe — ump said strike, robot ruled ball: overturned.
- 5Tyler Heineman — ump said strike, robot ruled ball: overturned.
- 6Kazuma Okamoto — ump said strike, robot ruled strike: upheld.
- 7Adam Frazier — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 3 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.