Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-10-01

PHI @ ATL

Home plate: Mark Ripperger

“A workmanlike night — nothing to frame, nothing to fix.”

A-
Umpire Grade
94.6% accurate
0.3
Run Favor
runs, ATL
2
ABS Overturns
of 3 reviewed

What this shows — how Mark Ripperger called the 148 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 140 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: Ronald Acuña Jr. — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: J.T. Realmuto — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Drake Baldwin — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).3
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.23▼6 · 0-2 strike called ball· challenged ✓
    Dominic Smith vs Zack Wheeler
  2. 2+0.13▼2 · 1-1 strike called ball
    Dominic Smith vs Aaron Nola
  3. 3-0.13▼1 · 1-0 ball called strike· challenged ✓
    Ronald Acuña Jr. vs Aaron Nola

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

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

  1. 1Ronald Acuña Jr. — ump said strike, robot ruled ball: overturned.
  2. 2J.T. Realmuto — ump said ball, robot ruled strike: overturned.
  3. 3Drake Baldwin — ump said ball, robot ruled ball: upheld.

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

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