Blue Notes · Umpire Grade2026-04-16
SEA @ SD
Home plate: Brian Walsh
“The kind of night where the umpire is the least of the story.”
Umpire Grade
92.2% accurate
Run Favor
runs, SEA
ABS Overturns
of 7 reviewed
What this shows — how Brian Walsh called the 141 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 130 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▲1 · 2-1 strike called ball
Brendan Donovan vs Walker Buehler - 2+0.19▼2 · 2-0 strike called ball
Jake Cronenworth vs Luis Castillo - 3-0.13▼7 · 1-1 ball called strike
Gavin Sheets vs Cole Wilcox
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 · 3 overturned (ump overruled) · 4 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1J.P. Crawford — ump said ball, robot ruled strike: overturned.
- 2Xander Bogaerts — ump said ball, robot ruled strike: overturned.
- 3Luis Campusano — ump said ball, robot ruled ball: upheld.
- 4Luis Campusano — ump said ball, robot ruled ball: upheld.
- 5Cal Raleigh — ump said strike, robot ruled ball: overturned.
- 6J.P. Crawford — ump said strike, robot ruled strike: upheld.
- 7Cole Young — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 5 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.