Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-22

CIN @ AZ

Home plate: Mark Ripperger

Nothing that'll trend, and on this beat that's a compliment.

A-
Umpire Grade
94.3% accurate
0.5
Run Favor
runs, CIN
3
ABS Overturns
of 7 reviewed

What this shows — how Mark Ripperger called the 174 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 164 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: Gabriel Moreno — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: Ke'Bryan Hayes — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Matt McLain — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Tyler Stephenson — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4Challenge 5: Gabriel Moreno — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5Challenge 6: Tyler Stephenson — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).6Challenge 7: Geraldo Perdomo — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).7
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.395 · 2-2 strike called ball
    Gabriel Moreno vs Rhett Lowder
  2. 2+0.304 · 3-1 strike called ball· challenged
    Matt McLain vs Zack Littell
  3. 3-0.309 · 3-1 ball called strike
    Nolan Arenado vs Tejay Antone

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. 1Gabriel Moreno — ump said ball, robot ruled ball: upheld.
  2. 2Ke'Bryan Hayes — ump said ball, robot ruled strike: overturned.
  3. 3Matt McLain — ump said ball, robot ruled strike: overturned.
  4. 4Tyler Stephenson — ump said ball, robot ruled ball: upheld.
  5. 5Gabriel Moreno — ump said strike, robot ruled ball: overturned.
  6. 6Tyler Stephenson — ump said ball, robot ruled ball: upheld.
  7. 7Geraldo Perdomo — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 5 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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