Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-18

ATL @ MIN

Home plate: Mark Wegner

The zone showed up, did the job, and went home. Ideal.

A+
Umpire Grade
97.0% accurate
0.3
Run Favor
runs, ATL
2
ABS Overturns
of 3 reviewed

What this shows — how Mark Wegner called the 100 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 97 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: Josh Bell — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Sean Murphy — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Ryan Jeffers — 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+0.092 · 0-0 strike called ball
    Mike Yastrzemski vs Zebby Matthews
  2. 2-0.097 · 0-0 ball called strike
    Alan Roden vs Dylan Dodd
  3. 3+0.099 · 0-0 strike called ball
    Ozzie Albies vs Yoendrys Gómez

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. 1Josh Bell — ump said ball, robot ruled strike: overturned.
  2. 2Sean Murphy — ump said strike, robot ruled ball: overturned.
  3. 3Ryan Jeffers — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 1 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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