Blue Notes · Umpire Grade2026-05-26
LAA @ DET
Home plate: Chris Conroy
“Nothing that'll trend, and on this beat that's a compliment.”
Umpire Grade
94.1% accurate
Run Favor
runs, DET
ABS Overturns
of 3 reviewed
What this shows — how Chris Conroy called the 169 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 159 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▲6 · 2-2 ball called strike
Jo Adell vs Keider Montero - 2+0.28▲2 · 1-2 strike called ball
Donovan Walton vs Keider Montero - 3+0.21▼5 · 3-0 strike called ball· challenged
Dillon Dingler vs Jack Kochanowicz
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
3 pitches went to the robots · 0 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Logan O'Hoppe — ump said ball, robot ruled ball: upheld.
- 2Kevin McGonigle — ump said strike, robot ruled strike: upheld.
- 3Oswald Peraza — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.