Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-08-26

CHC @ AZ

Home plate: Alfonso Márquez

“If it was close, it was a strike. The hitters noticed.”

B-
Umpire Grade
91.9% accurate
0.2
Run Favor
runs, AZ
2
ABS Overturns
of 5 reviewed

What this shows — how Alfonso Márquez called the 123 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 113 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: Eduardo Rodriguez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Seiya Suzuki — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Alex Bregman — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).3Challenge 4: James McCann — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4Challenge 5: Ian Happ — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.23▼4 · 0-2 strike called ball
    Corbin Carroll vs Matthew Boyd
  2. 2+0.19▲6 · 2-0 strike called ball· challenged ✓
    Michael Busch vs Eduardo Rodriguez
  3. 3-0.13▲8 · 1-1 ball called strike· challenged ✓
    Seiya Suzuki vs Brandyn Garcia

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

  1. 1Eduardo Rodriguez — ump said ball, robot ruled strike: overturned.
  2. 2Seiya Suzuki — ump said strike, robot ruled ball: overturned.
  3. 3Alex Bregman — ump said strike, robot ruled strike: upheld.
  4. 4James McCann — ump said ball, robot ruled ball: upheld.
  5. 5Ian Happ — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 5 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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