Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-04-19

DET @ BOS

Home plate: Lance Barksdale

Expanded the plate a touch past its 17 inches.

D
Umpire Grade
85.6% accurate
0.1
Run Favor
runs, BOS
2
ABS Overturns
of 5 reviewed

What this shows — how Lance Barksdale called the 153 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 131 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: Carlos Narváez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: Dillon Dingler — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Dillon Dingler — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Wenceel Pérez — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).4Challenge 5: Kerry Carpenter — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.391 · 2-2 strike called ball· challenged
    Dillon Dingler vs Garrett Crochet
  2. 2+0.397 · 2-2 strike called ball· challenged
    Ceddanne Rafaela vs Kyle Finnegan
  3. 3-0.281 · 1-2 ball called strike
    Gleyber Torres vs Garrett Crochet

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

5 pitches went to the robots · 2 overturned (ump overruled) · 3 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Carlos Narváez — ump said ball, robot ruled ball: upheld.
  2. 2Dillon Dingler — ump said ball, robot ruled strike: overturned.
  3. 3Dillon Dingler — ump said ball, robot ruled strike: overturned.
  4. 4Wenceel Pérez — ump said strike, robot ruled strike: upheld.
  5. 5Kerry Carpenter — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 4 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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