Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-07-21

Down the middle. Both dugouts had the same zone.

A
Umpire Grade
95.4% accurate
0.2
Run Favor
runs, AZ
1
ABS Overturns
of 5 reviewed

What this shows — how Hunter Wendelstedt called the 195 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 186 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: Nolan Arenado — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Henry Bolte — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Gabriel Moreno — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).3Challenge 4: Shea Langeliers — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Shea Langeliers — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.137 · 1-1 ball called strike
    Lawrence Butler vs Juan Morillo
  2. 2-0.131 · 1-0 ball called strike
    Jonah Heim vs Kohl Drake
  3. 3-0.136 · 1-0 ball called strike· challenged
    Nolan Arenado vs Brady Basso

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

5 pitches went to the robots · 1 overturned (ump overruled) · 4 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Nolan Arenado — ump said strike, robot ruled strike: upheld.
  2. 2Henry Bolte — ump said strike, robot ruled strike: upheld.
  3. 3Gabriel Moreno — ump said ball, robot ruled ball: upheld.
  4. 4Shea Langeliers — ump said strike, robot ruled ball: overturned.
  5. 5Shea Langeliers — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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