Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-04-08

MIL @ BOS

Home plate: Brennan Miller

A small strike zone, generously enforced for the offense.

C+
Umpire Grade
90.0% accurate
0.5
Run Favor
runs, BOS
2
ABS Overturns
of 3 reviewed

What this shows — how Brennan Miller called the 170 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 153 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: Gary Sánchez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Gary Sánchez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Carlos Narváez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.397 · 2-2 strike called ball· challenged
    Joey Ortiz vs Greg Weissert
  2. 2+0.281 · 1-2 strike called ball
    Jake Bauers vs Sonny Gray
  3. 3+0.282 · 1-2 strike called ball
    Carlos Narváez vs Shane Drohan

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

  1. 1Gary Sánchez — ump said ball, robot ruled strike: overturned.
  2. 2Gary Sánchez — ump said ball, robot ruled ball: upheld.
  3. 3Carlos Narváez — ump said ball, robot ruled strike: overturned.

Our tracked-rulebook zone matched the ABS ruling on 2 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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