Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-09-08

CHC @ MIL

Home plate: Adam Hamari

“Squeezed the edges; the hitters didn't mind at all.”

C
Umpire Grade
89.6% accurate
0.7
Run Favor
runs, MIL
3
ABS Overturns
of 7 reviewed

What this shows — how Adam Hamari called the 164 pitches that were taken (no swing), graded against the tracked rulebook strike zone, or, on a pitch the ABS (Automated Ball-Strike System) reviewed on a challenge, against its ruling. 147 were right. Below, only the misses are plotted, alongside every challenged pitch.

The zone, as he called it

Challenge 1: William Contreras — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Ian Happ — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: William Contreras — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).3Challenge 4: Miguel Amaya — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Luis Lara — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Matt Shaw — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).6Challenge 7: William Contreras — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).7
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.39▼4 · 2-2 strike called ball· challenged ✓
    William Contreras vs David Peterson
  2. 2+0.30▼5 · 3-1 strike called ball
    Brice Turang vs David Peterson
  3. 3+0.28▲9 · 1-2 strike called ball
    Carson Kelly vs Trevor Megill

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 the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1William Contreras — ump said ball, robot ruled strike: overturned.
  2. 2Ian Happ — ump said strike, robot ruled ball: overturned.
  3. 3William Contreras — ump said ball, robot ruled ball: upheld.
  4. 4Miguel Amaya — ump said ball, robot ruled strike: overturned.
  5. 5Luis Lara — ump said strike, robot ruled strike: upheld.
  6. 6Matt Shaw — ump said strike, robot ruled strike: upheld.
  7. 7William Contreras — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 7 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone). Where the two disagree, the umpire is graded on the ABS ruling.

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