Blue Notes · Umpire Grade2026-07-01
LAD @ ATH
Home plate: Tom Hanahan
“An honest evening's grade: nothing loud, nothing missed by much.”
Umpire Grade
94.4% accurate
Run Favor
runs, ATH
ABS Overturns
of 3 reviewed
What this shows — how Tom Hanahan called the 143 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 135 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+0.69▼4 · 3-2 strike called ball
Jonah Heim vs Charlie Barnes - 2+0.28▲1 · 1-2 strike called ball
Tommy Edman vs J.T. Ginn - 3-0.09▲1 · 0-0 ball called strike
Andy Pages vs J.T. Ginn
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 · 2 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Jonah Heim — ump said ball, robot ruled ball: upheld.
- 2Kyle Tucker — ump said ball, robot ruled strike: overturned.
- 3Jonah Heim — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 1 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.