Blue Notes · Umpire Grade2026-05-27
“A steady night's work behind the plate.”
Umpire Grade
93.7% accurate
Run Favor
runs, LAD
ABS Overturns
of 4 reviewed
What this shows — how Laz Diaz called the 158 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 148 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+0.23▼5 · 0-2 strike called ball
Shohei Ohtani vs Tomoyuki Sugano - 2+0.20▼2 · 2-1 strike called ball
Will Smith vs Tomoyuki Sugano - 3+0.13▲4 · 1-1 strike called ball
Willi Castro vs Shohei Ohtani
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
4 pitches went to the robots · 1 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Mookie Betts — ump said ball, robot ruled strike: overturned.
- 2Willi Castro — ump said strike, robot ruled strike: upheld.
- 3Will Smith — ump said ball, robot ruled ball: upheld.
- 4Edouard Julien — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.