Blue Notes · Umpire Grade2026-03-30
ATH @ ATL
Home plate: Dan Bellino
“The Automated Ball-Strike System put in some overtime here.”
Umpire Grade
95.6% accurate
Run Favor
runs, ATL
ABS Overturns
of 6 reviewed
What this shows — how Dan Bellino called the 137 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 131 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▼1 · 0-2 strike called ball
Michael Harris II vs Jacob Lopez - 2-0.20▼1 · 2-1 ball called strike
Mauricio Dubón vs Jacob Lopez - 3+0.13▲2 · 1-1 strike called ball· challenged ✓
Max Muncy vs Bryce Elder
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
6 pitches went to the robots · 5 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Nick Kurtz — ump said ball, robot ruled strike: overturned.
- 2Max Muncy — ump said ball, robot ruled strike: overturned.
- 3Jonah Heim — ump said strike, robot ruled ball: overturned.
- 4Jonah Heim — ump said ball, robot ruled ball: upheld.
- 5Jonah Heim — ump said strike, robot ruled ball: overturned.
- 6Shea Langeliers — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 2 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.