Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-09-25

ATL @ MIA

Home plate: Adam Hamari

“The zone showed up, did the job, and went home. Ideal.”

A
Umpire Grade
96.9% accurate
0.1
Run Favor
runs, ATL
1
ABS Overturns
of 2 reviewed

What this shows — how Adam Hamari called the 96 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 93 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

Challenge 1: Joe Mack — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Sean Murphy — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.23▲1 · 0-2 strike called ball· challenged ✓
    Michael Harris II vs Eury Pérez
  2. 2+0.09▼2 · 0-0 strike called ball
    Deyvison De Los Santos vs Ray Kerr
  3. 3+0.09▼5 · 0-0 strike called ball
    Otto Lopez vs Grant Holmes

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

2 pitches went to the robots · 1 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Joe Mack — ump said ball, robot ruled strike: overturned.
  2. 2Sean Murphy — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 2 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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