Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-05-06

MIL @ STL

Home plate: Mike Muchlinski

Down the middle. Both dugouts had the same zone.

B
Umpire Grade
92.7% accurate
0.0
Run Favor
runs, MIL
2
ABS Overturns
of 3 reviewed

What this shows — how Mike Muchlinski called the 178 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 165 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: Alec Burleson — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: William Contreras — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Iván Herrera — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.201 · 2-1 ball called strike· challenged
    Alec Burleson vs Brandon Sproat
  2. 2+0.201 · 2-1 strike called ball
    Jordan Walker vs Brandon Sproat
  3. 3-0.208 · 2-1 ball called strike
    Iván Herrera 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

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. 1Alec Burleson — ump said strike, robot ruled ball: overturned.
  2. 2William Contreras — ump said ball, robot ruled strike: overturned.
  3. 3Iván Herrera — ump said strike, robot ruled strike: 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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