Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-09-05

NYY @ SD

Home plate: Alex MacKay

“Called a fair game and let the players decide it.”

B
Umpire Grade
92.8% accurate
0.3
Run Favor
runs, SD
4
ABS Overturns
of 5 reviewed

What this shows — how Alex MacKay called the 180 pitches that were taken (no swing), graded against the tracked rulebook strike zone, or, on a pitch the ABS (Automated Ball-Strike System) reviewed on a challenge, against its ruling. 167 were right. Below, only the misses are plotted, alongside every challenged pitch.

The zone, as he called it

Challenge 1: Ben Rice — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled). Our tracking puts it on the other side of the line; the grade follows the ruling.1*Challenge 2: Freddy Fermin — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Luis Campusano — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled). Our tracking puts it on the other side of the line; the grade follows the ruling.3*Challenge 4: Austin Wells — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Austin Wells — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).5
strike called ballball called strikeABS overturnedABS upheld

* Graded on the ABS ruling. ABS measures its own zone, set by the batter’s height and taken at the middle of the plate, and our tracking puts this pitch on the other side of the line.

The calls that moved the game

  1. 1+0.69▼6 · 3-2 strike called ball· challenged ✓
    Ty France vs Michael Fulmer
  2. 2+0.21▲3 · 3-0 strike called ball
    José Caballero vs Griffin Canning
  3. 3-0.20▼4 · 2-1 ball called strike· challenged ✓
    Luis Campusano 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

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

  1. 1Ben Rice — ump said strike, robot ruled ball: overturned.
  2. 2Freddy Fermin — ump said ball, robot ruled strike: overturned.
  3. 3Luis Campusano — ump said strike, robot ruled ball: overturned.
  4. 4Austin Wells — ump said ball, robot ruled strike: overturned.
  5. 5Austin Wells — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone). Where the two disagree, the umpire is graded on the ABS ruling.

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