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 Grade2026-04-11

PIT @ CHC

Home plate: Alex MacKay

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

A
Umpire Grade
95.6% accurate
0.1
Run Favor
runs, PIT
4
ABS Overturns
of 8 reviewed

What this shows — how Alex MacKay called the 206 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 197 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: Henry Davis — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Edward Cabrera — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Miguel Amaya — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Spencer Horwitz — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).4Challenge 5: Nico Hoerner — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Henry Davis — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).6Challenge 7: Miguel Amaya — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).7Challenge 8: Joey Bart — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).8
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.19▲3 · 2-0 ball called strike
    Spencer Horwitz vs Edward Cabrera
  2. 2+0.13▲7 · 1-1 strike called ball
    Marcell Ozuna vs Ben Brown
  3. 3+0.13▲3 · 1-0 strike called ball
    Spencer Horwitz vs Edward Cabrera

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

8 pitches went to the robots · 4 overturned (ump overruled) · 4 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.

  1. 1Henry Davis — ump said strike, robot ruled ball: overturned.
  2. 2Edward Cabrera — ump said strike, robot ruled ball: overturned.
  3. 3Miguel Amaya — ump said strike, robot ruled ball: overturned.
  4. 4Spencer Horwitz — ump said strike, robot ruled strike: upheld.
  5. 5Nico Hoerner — ump said strike, robot ruled strike: upheld.
  6. 6Henry Davis — ump said strike, robot ruled ball: overturned.
  7. 7Miguel Amaya — ump said strike, robot ruled strike: upheld.
  8. 8Joey Bart — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 4 of 8 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.