Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-03-31

Called a fair game and let the players decide it.

A
Umpire Grade
96.4% accurate
0.6
Run Favor
runs, NYM
3
ABS Overturns
of 5 reviewed

What this shows — how Hunter Wendelstedt called the 138 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 133 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: Luis Torrens — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Luis Torrens — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Iván Herrera — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Iván Herrera — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Nathan Church — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.195 · 2-0 ball called strike· challenged
    Iván Herrera vs Kodai Senga
  2. 2-0.131 · 1-0 ball called strike
    Masyn Winn vs Kodai Senga
  3. 3+0.133 · 1-0 strike called ball
    Luis Torrens vs Andre Pallante

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 · 3 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Luis Torrens — ump said ball, robot ruled strike: overturned.
  2. 2Luis Torrens — ump said ball, robot ruled ball: upheld.
  3. 3Iván Herrera — ump said strike, robot ruled ball: overturned.
  4. 4Iván Herrera — ump said strike, robot ruled ball: overturned.
  5. 5Nathan Church — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 4 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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