Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-06-23

NYY @ DET

Home plate: Alex MacKay

The kind of night where the umpire is the least of the story.

A-
Umpire Grade
95.0% accurate
0.3
Run Favor
runs, NYY
3
ABS Overturns
of 4 reviewed

What this shows — how Alex MacKay called the 139 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 132 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: Austin Wells — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).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 ball (upheld — ump confirmed).3Challenge 4: Dillon Dingler — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.283 · 1-2 strike called ball
    Ben Rice vs Casey Mize
  2. 2+0.288 · 1-2 strike called ball· challenged
    Jazz Chisholm Jr. vs Kyle Finnegan
  3. 3+0.201 · 2-1 strike called ball· challenged
    Matt Vierling vs Carlos Rodón

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

4 pitches went to the robots · 3 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Austin Wells — ump said ball, robot ruled strike: overturned.
  2. 2Dillon Dingler — ump said ball, robot ruled strike: overturned.
  3. 3Dillon Dingler — ump said ball, robot ruled ball: upheld.
  4. 4Dillon Dingler — ump said ball, robot ruled strike: overturned.

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

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