Fever BaseballFor collectors and stat nerdsFuture Value Radar (FVR) · On the record
Blue Notes · Umpire Grade2026-10-06

MIL @ SD

Home plate: Alfonso Márquez

“Reliable as a Tuesday: no complaints, no headlines.”

A-
Umpire Grade
94.6% accurate
0.2
Run Favor
runs, SD
2
ABS Overturns
of 6 reviewed

What this shows — how Alfonso Márquez called the 147 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 139 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: William Contreras — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: Ethan Salas — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).2Challenge 3: Joey Ortiz — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: William Contreras — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: William Contreras — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Ethan Salas — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.19▼6 · 2-0 strike called ball· challenged ✓
    Ethan Salas vs Antonio Senzatela
  2. 2-0.13▲6 · 1-0 ball called strike
    Sal Frelick vs Yuki Matsui
  3. 3-0.13▲6 · 1-0 ball called strike· challenged ✓
    Joey Ortiz vs Bradgley Rodriguez

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

6 pitches went to the robots · 2 overturned (ump overruled) · 4 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1William Contreras — ump said ball, robot ruled ball: upheld.
  2. 2Ethan Salas — ump said ball, robot ruled ball: upheld.
  3. 3Joey Ortiz — ump said strike, robot ruled ball: overturned.
  4. 4William Contreras — ump said ball, robot ruled strike: overturned.
  5. 5William Contreras — ump said strike, robot ruled strike: upheld.
  6. 6Ethan Salas — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 6 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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