Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-12

The kind of night where the umpire is the least of the story.

A
Umpire Grade
95.3% accurate
0.4
Run Favor
runs, MIA
3
ABS Overturns
of 6 reviewed

What this shows — how Hunter Wendelstedt called the 169 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 161 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: Heriberto Hernández — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Henry Davis — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Henry Davis — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).3Challenge 4: Joe Mack — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Camilo Doval — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5Challenge 6: Brian Navarreto — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.136 · 1-1 ball called strike
    Nick Gonzales vs Janson Junk
  2. 2+0.139 · 1-0 strike called ball
    Nick Gonzales vs Victor Vodnik
  3. 3+0.091 · 0-0 strike called ball
    Otto Lopez vs Carmen Mlodzinski

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

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

  1. 1Heriberto Hernández — ump said strike, robot ruled strike: upheld.
  2. 2Henry Davis — ump said strike, robot ruled ball: overturned.
  3. 3Henry Davis — ump said ball, robot ruled ball: upheld.
  4. 4Joe Mack — ump said strike, robot ruled ball: overturned.
  5. 5Camilo Doval — ump said strike, robot ruled ball: overturned.
  6. 6Brian Navarreto — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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