Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-13

BOS @ TOR

Home plate: Chris Guccione

A workmanlike night — nothing to frame, nothing to fix.

B-
Umpire Grade
91.8% accurate
1.0
Run Favor
runs, BOS
1
ABS Overturns
of 2 reviewed

What this shows — how Chris Guccione called the 146 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 134 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: Brandon Valenzuela — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: Brandon Valenzuela — 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+0.691 · 3-2 strike called ball
    Wilyer Abreu vs Max Scherzer
  2. 2+0.309 · 3-1 strike called ball
    Nick Sogard vs Lazaro Estrada
  3. 3+0.232 · 0-2 strike called ball
    Andruw Monasterio vs Max Scherzer

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. 1Brandon Valenzuela — ump said ball, robot ruled ball: upheld.
  2. 2Brandon Valenzuela — ump said strike, robot ruled ball: overturned.

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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