Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-26

CLE @ LAA

Home plate: Mike Muchlinski

The zone had wings tonight.

B
Umpire Grade
92.5% accurate
0.3
Run Favor
runs, CLE
0
ABS Overturns
of 3 reviewed

What this shows — how Mike Muchlinski called the 160 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 148 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: Zach Neto — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Patrick Bailey — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Patrick Bailey — 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+0.391 · 2-2 strike called ball
    Steven Kwan vs Grayson Rodriguez
  2. 2-0.202 · 2-1 ball called strike
    Angel Genao vs Grayson Rodriguez
  3. 3-0.139 · 1-1 ball called strike
    Oswald Peraza vs Erik Sabrowski

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

  1. 1Zach Neto — ump said strike, robot ruled strike: upheld.
  2. 2Patrick Bailey — ump said ball, robot ruled ball: upheld.
  3. 3Patrick Bailey — 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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