Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-05-08

LAA @ TOR

Home plate: Mike Estabrook

The zone stretched its legs.

C+
Umpire Grade
90.9% accurate
0.9
Run Favor
runs, TOR
1
ABS Overturns
of 2 reviewed

What this shows — how Mike Estabrook called the 143 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 130 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: Sebastián Rivero — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: Vladimir Guerrero Jr. — 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+0.282 · 1-2 strike called ball
    Ernie Clement vs Reid Detmers
  2. 2-0.288 · 1-2 ball called strike
    Mike Trout vs Jeff Hoffman
  3. 3-0.194 · 2-0 ball called strike
    Myles Straw vs Reid Detmers

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. 1Sebastián Rivero — ump said ball, robot ruled ball: upheld.
  2. 2Vladimir Guerrero Jr. — 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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