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Blue Notes · Umpire Grade2026-08-12

MIL @ SD

Home plate: Alfonso Márquez

“The players kept asking for a second opinion — and kept getting one.”

B-
Umpire Grade
91.8% accurate
0.6
Run Favor
runs, MIL
5
ABS Overturns
of 9 reviewed

What this shows — how Alfonso Márquez called the 194 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 178 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: Gary Sánchez — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Joey Ortiz — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Freddy Fermin — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Freddy Fermin — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Brice Turang — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Freddy Fermin — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).6Challenge 7: Luis Campusano — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).7Challenge 8: Gary Sánchez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).8Challenge 9: Luis Campusano — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).9
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.39▲4 · 2-2 ball called strike· challenged ✓
    Gary Sánchez vs Robbie Ray
  2. 2+0.39▲8 · 2-2 strike called ball· challenged ✓
    Andrew Vaughn vs Kyle Hart
  3. 3+0.28▲7 · 1-2 strike called ball· challenged ✓
    Jackson Chourio vs Jeremiah Estrada

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

9 pitches went to the robots · 5 overturned (ump overruled) · 4 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Gary Sánchez — ump said strike, robot ruled ball: overturned.
  2. 2Joey Ortiz — ump said strike, robot ruled strike: upheld.
  3. 3Freddy Fermin — ump said ball, robot ruled strike: overturned.
  4. 4Freddy Fermin — ump said ball, robot ruled strike: overturned.
  5. 5Brice Turang — ump said strike, robot ruled strike: upheld.
  6. 6Freddy Fermin — ump said ball, robot ruled strike: overturned.
  7. 7Luis Campusano — ump said strike, robot ruled ball: overturned.
  8. 8Gary Sánchez — ump said ball, robot ruled ball: upheld.
  9. 9Luis Campusano — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 8 of 9 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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