Blue Notes · Umpire Grade2026-07-12
MIL @ PIT
Home plate: Alfonso Márquez
“The kind of night where the umpire is the least of the story.”
Umpire Grade
94.2% accurate
Run Favor
runs, MIL
ABS Overturns
of 5 reviewed
What this shows — how Alfonso Márquez called the 154 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 145 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 strike called ball
Henry Davis vs Bryse Wilson - 2-0.19▼3 · 2-0 ball called strike
Nick Gonzales vs Robert Gasser - 3-0.13▲5 · 1-0 ball called strike
Braden Shewmake 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
5 pitches went to the robots · 2 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Gary Sánchez — ump said strike, robot ruled ball: overturned.
- 2Gary Sánchez — ump said strike, robot ruled strike: upheld.
- 3Henry Davis — ump said strike, robot ruled ball: overturned.
- 4Henry Davis — ump said ball, robot ruled ball: upheld.
- 5Gary Sánchez — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.