Fever BaseballFuture Value Radar (FVR) · On the record
RECORD: 0 HIT · 0 MISS · 12 OPEN · FIRST CALL RESOLVES AUG 12
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Blue Notes · Umpire Grade2026-04-15

CLE @ STL

Home plate: Alex MacKay

“A steady night's work behind the plate.”

A-
Umpire Grade
94.7% accurate
0.6
Run Favor
runs, STL
1
ABS Overturns
of 3 reviewed

What this shows — how Alex MacKay called the 169 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 160 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: Juan Brito — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Pedro Pagés — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Rhys Hoskins — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.13▼2 · 1-1 strike called ball
    JJ Wetherholt vs Slade Cecconi
  2. 2+0.13▼4 · 1-0 strike called ball
    JJ Wetherholt vs Slade Cecconi
  3. 3+0.13▲7 · 1-0 strike called ball
    Bo Naylor vs Justin Bruihl

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 · 1 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.

  1. 1Juan Brito — ump said strike, robot ruled strike: upheld.
  2. 2Pedro Pagés — ump said strike, robot ruled ball: overturned.
  3. 3Rhys Hoskins — ump said strike, robot ruled strike: upheld.

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.