Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-09-11

TEX @ AZ

Home plate: Brian Walsh

Borderline went to the battery all night.

B-
Umpire Grade
91.5% accurate
0.5
Run Favor
runs, AZ
2
ABS Overturns
of 2 reviewed

What this shows — how Brian Walsh called the 164 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 150 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: Jake Burger — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Ryan Waldschmidt — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.392 · 2-2 ball called strike· challenged
    Jake Burger vs Merrill Kelly
  2. 2-0.205 · 2-1 ball called strike
    Jake Burger vs Merrill Kelly
  3. 3-0.206 · 2-1 ball called strike
    Gabriel Moreno vs Chase Silseth

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 · 2 overturned (ump overruled) · 0 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Jake Burger — ump said strike, robot ruled ball: overturned.
  2. 2Ryan Waldschmidt — ump said strike, robot ruled ball: overturned.

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

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