Blue Notes · Umpire Grade2026-05-12
SF @ LAD
Home plate: Brian Walsh
“Solid and unspectacular — exactly what the job asks.”
Umpire Grade
93.6% accurate
Run Favor
runs, LAD
ABS Overturns
of 5 reviewed
What this shows — how Brian Walsh called the 156 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 146 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
- 1-0.20▼6 · 2-1 ball called strike
Freddie Freeman vs Adrian Houser - 2+0.13▼2 · 1-0 strike called ball· challenged ✓
Andy Pages vs Adrian Houser - 3-0.10▼2 · 0-1 ball called strike
Hyeseong Kim vs Adrian Houser
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 Hawkeye ground truth, no model involved.
- 1Andy Pages — ump said ball, robot ruled strike: overturned.
- 2Jung Hoo Lee — ump said ball, robot ruled strike: overturned.
- 3Eric Haase — ump said ball, robot ruled ball: upheld.
- 4Eric Haase — ump said strike, robot ruled ball: overturned.
- 5Teoscar Hernández — ump said strike, robot ruled strike: 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.