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RECORD: 8 HIT · 12 MISS · 1 OPEN
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Blue Notes · Umpire Grade2026-08-01

DET @ ATH

Home plate: Louie Krupa

“The robots earned their keep tonight.”

B
Umpire Grade
92.3% accurate
1.4
Run Favor
runs, ATH
5
ABS Overturns
of 6 reviewed

What this shows — how Louie Krupa called the 169 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 156 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: Dillon Dingler — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Colt Keith — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Lawrence Butler — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Brian Serven — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Dillon Dingler — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).5Challenge 6: Dillon Dingler — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.69▼9 · 3-2 strike called ball· challenged ✓
    Lawrence Butler vs Kenley Jansen
  2. 2-0.28▲2 · 1-2 ball called strike
    Gleyber Torres vs Jack Perkins
  3. 3+0.23▼3 · 0-2 strike called ball· challenged ✓
    Alika Williams vs Framber Valdez

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 · 5 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Dillon Dingler — ump said ball, robot ruled strike: overturned.
  2. 2Colt Keith — ump said strike, robot ruled ball: overturned.
  3. 3Lawrence Butler — ump said strike, robot ruled ball: overturned.
  4. 4Brian Serven — ump said ball, robot ruled strike: overturned.
  5. 5Dillon Dingler — ump said ball, robot ruled ball: upheld.
  6. 6Dillon Dingler — ump said ball, robot ruled strike: overturned.

Our tracked-rulebook zone matched the ABS ruling on 5 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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