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Blue Notes · Umpire Grade2026-03-31

DET @ AZ

Home plate: Bill Miller

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

C
Umpire Grade
89.8% accurate
0.2
Run Favor
runs, DET
6
ABS Overturns
of 9 reviewed

What this shows — how Bill Miller called the 147 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 132 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: Kevin McGonigle — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: James McCann — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: James McCann — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).3Challenge 4: Kerry Carpenter — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Jake Rogers — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Gleyber Torres — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).6Challenge 7: Gabriel Moreno — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).7Challenge 8: Gabriel Moreno — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).8Challenge 9: Zach McKinstry — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).9
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.39▲4 · 2-2 strike called ball
    Jake Rogers vs Brandon Pfaadt
  2. 2-0.39▲8 · 2-2 ball called strike· challenged ✓
    Gleyber Torres vs Andrew Hoffmann
  3. 3+0.30▼8 · 3-1 strike called ball
    Ketel Marte vs Will Vest

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

  1. 1Kevin McGonigle — ump said strike, robot ruled ball: overturned.
  2. 2James McCann — ump said ball, robot ruled strike: overturned.
  3. 3James McCann — ump said ball, robot ruled ball: upheld.
  4. 4Kerry Carpenter — ump said strike, robot ruled ball: overturned.
  5. 5Jake Rogers — ump said ball, robot ruled strike: overturned.
  6. 6Gleyber Torres — ump said strike, robot ruled ball: overturned.
  7. 7Gabriel Moreno — ump said strike, robot ruled ball: overturned.
  8. 8Gabriel Moreno — ump said strike, robot ruled strike: upheld.
  9. 9Zach McKinstry — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 7 of 9 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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