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Blue Notes · Umpire Grade2026-04-09

DET @ MIN

Home plate: Adrian Johnson

“The Automated Ball-Strike System put in some overtime here.”

C+
Umpire Grade
90.5% accurate
0.1
Run Favor
runs, DET
5
ABS Overturns
of 7 reviewed

What this shows — how Adrian Johnson called the 168 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 152 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: Colt Keith — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Victor Caratini — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Victor Caratini — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Jake Rogers — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Victor Caratini — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).5Challenge 6: Kody Clemens — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).6Challenge 7: Victor Caratini — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).7
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.30▼2 · 3-1 strike called ball· challenged ✓
    Royce Lewis vs Jack Flaherty
  2. 2+0.23▲1 · 0-2 strike called ball· challenged ✓
    Riley Greene vs Mick Abel
  3. 3-0.23▲5 · 0-2 ball called strike
    Riley Greene vs Mick Abel

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

7 pitches went to the robots · 5 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Colt Keith — ump said strike, robot ruled strike: upheld.
  2. 2Victor Caratini — ump said ball, robot ruled strike: overturned.
  3. 3Victor Caratini — ump said ball, robot ruled strike: overturned.
  4. 4Jake Rogers — ump said ball, robot ruled strike: overturned.
  5. 5Victor Caratini — ump said ball, robot ruled ball: upheld.
  6. 6Kody Clemens — ump said strike, robot ruled ball: overturned.
  7. 7Victor Caratini — ump said ball, robot ruled strike: overturned.

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

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