Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-07

ATL @ NYY

Home plate: Mark Ripperger

The zone kept its promises.

A
Umpire Grade
96.0% accurate
0.5
Run Favor
runs, NYY
3
ABS Overturns
of 5 reviewed

What this shows — how Mark Ripperger called the 176 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 169 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: Mauricio Dubón — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Trent Grisham — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Austin Wells — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Sean Murphy — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4Challenge 5: Austin Wells — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.199 · 2-0 ball called strike· challenged
    Michael Harris II vs Tim Hill
  2. 2-0.1910 · 2-0 ball called strike
    Ronald Acuña Jr. vs David Bednar
  3. 3-0.139 · 1-1 ball called strike
    Mauricio Dubón vs Tim Hill

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

  1. 1Mauricio Dubón — ump said ball, robot ruled strike: overturned.
  2. 2Trent Grisham — ump said strike, robot ruled strike: upheld.
  3. 3Austin Wells — ump said strike, robot ruled ball: overturned.
  4. 4Sean Murphy — ump said ball, robot ruled ball: upheld.
  5. 5Austin Wells — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 3 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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