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 Grade2026-04-17

STL @ HOU

Home plate: Alfonso Márquez

“Down the middle. Both dugouts had the same zone.”

A-
Umpire Grade
94.1% accurate
0.5
Run Favor
runs, STL
1
ABS Overturns
of 2 reviewed

What this shows — how Alfonso Márquez called the 152 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 143 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: Christian Vázquez — 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).2
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.20▼7 · 2-1 ball called strike
    Christian Vázquez vs JoJo Romero
  2. 2+0.13▲2 · 1-1 strike called ball
    Nathan Church vs Peter Lambert
  3. 3-0.13▼9 · 1-1 ball called strike
    Jose Altuve vs George Soriano

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

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

  1. 1Christian Vázquez — ump said strike, robot ruled strike: upheld.
  2. 2Pedro Pagés — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 1 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.