Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-19

ATH @ KC

Home plate: Alex Tosi

Both benches went home with nothing to say — the rarest kind of night.

A
Umpire Grade
96.8% accurate
0.3
Run Favor
runs, ATH
1
ABS Overturns
of 2 reviewed

What this shows — how Alex Tosi called the 154 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 149 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: Jonah Heim — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Carter Jensen — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.131 · 1-1 strike called ball
    Lawrence Butler vs Seth Lugo
  2. 2+0.137 · 1-1 strike called ball
    Bobby Witt Jr. vs Elvis Alvarado
  3. 3-0.094 · 0-0 ball called strike
    Salvador Perez vs Jeffrey Springs

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

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

  1. 1Jonah Heim — ump said strike, robot ruled ball: overturned.
  2. 2Carter Jensen — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 1 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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