Blue Notes · Umpire Grade2026-04-24
PIT @ MIL
Home plate: Tom Hanahan
“Pitchers found a little extra real estate.”
Umpire Grade
90.8% accurate
Run Favor
runs, PIT
ABS Overturns
of 4 reviewed
What this shows — how Tom Hanahan called the 120 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 109 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
- 1-0.19▼6 · 2-0 ball called strike
Sal Frelick vs Paul Skenes - 2+0.13▲2 · 1-1 strike called ball
Marcell Ozuna vs Brandon Woodruff - 3-0.13▼1 · 1-0 ball called strike
Jake Bauers vs Paul Skenes
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 · 4 overturned (ump overruled) · 0 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Ryan O'Hearn — ump said ball, robot ruled strike: overturned.
- 2Ryan O'Hearn — ump said ball, robot ruled strike: overturned.
- 3William Contreras — ump said strike, robot ruled ball: overturned.
- 4Henry Davis — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 0 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.