Blue Notes · Umpire Grade2026-04-24
MIA @ SF
Home plate: Dan Bellino
“A pitcher's-nightmare zone — you had to paint it to get it.”
Umpire Grade
92.4% accurate
Run Favor
runs, MIA
ABS Overturns
of 7 reviewed
What this shows — how Dan Bellino called the 158 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 146 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▲2 · 0-2 strike called ball
Connor Norby vs Adrian Houser - 2+0.20▲1 · 2-1 strike called ball
Jakob Marsee vs Adrian Houser - 3+0.13▼2 · 1-1 strike called ball
Jung Hoo Lee vs Sandy Alcantara
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
7 pitches went to the robots · 3 overturned (ump overruled) · 4 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Matt Chapman — ump said ball, robot ruled strike: overturned.
- 2Liam Hicks — ump said strike, robot ruled ball: overturned.
- 3Casey Schmitt — ump said strike, robot ruled strike: upheld.
- 4Sandy Alcantara — ump said ball, robot ruled ball: upheld.
- 5Heliot Ramos — ump said ball, robot ruled strike: overturned.
- 6Liam Hicks — ump said ball, robot ruled ball: upheld.
- 7Jerar Encarnacion — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 5 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.