Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-24

MIN @ ATH

Home plate: Alan Porter

“An honest evening's grade: nothing loud, nothing missed by much.”

A
Umpire Grade
96.4% accurate
0.6
Run Favor
runs, ATH
1
ABS Overturns
of 3 reviewed

What this shows — how Alan Porter called the 137 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 132 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: Byron Buxton — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Ryan Jeffers — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).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+0.39▼7 · 2-2 strike called ball· challenged
    Jonah Heim vs Zebby Matthews
  2. 2+0.30▼8 · 3-1 strike called ball· challenged
    Lawrence Butler vs Tommy Nance
  3. 3+0.13▼9 · 1-0 strike called ball
    Henry Bolte 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 · 1 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Byron Buxton — ump said strike, robot ruled ball: overturned.
  2. 2Ryan Jeffers — ump said ball, robot ruled ball: upheld.
  3. 3Ryan Jeffers — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 0 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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