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Blue Notes · Umpire Grade2026-05-29

DET @ CWS

Home plate: Hunter Wendelstedt

“Borderline went to the battery all night.”

C+
Umpire Grade
90.7% accurate
0.3
Run Favor
runs, CWS
4
ABS Overturns
of 7 reviewed

What this shows — how Hunter Wendelstedt called the 150 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 136 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: Munetaka Murakami — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Dillon Dingler — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Drew Romo — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).3Challenge 4: Sam Antonacci — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Drew Romo — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Kevin McGonigle — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).6Challenge 7: Miguel Vargas — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).7
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.30▼1 · 3-1 strike called ball· challenged ✓
    Munetaka Murakami vs Troy Melton
  2. 2+0.28▲8 · 1-2 strike called ball· challenged ✓
    Dillon Dingler vs Sean Newcomb
  3. 3-0.19▼1 · 2-0 ball called strike
    Munetaka Murakami vs Troy Melton

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

  1. 1Munetaka Murakami — ump said strike, robot ruled ball: overturned.
  2. 2Dillon Dingler — ump said ball, robot ruled strike: overturned.
  3. 3Drew Romo — ump said ball, robot ruled ball: upheld.
  4. 4Sam Antonacci — ump said strike, robot ruled ball: overturned.
  5. 5Drew Romo — ump said ball, robot ruled strike: overturned.
  6. 6Kevin McGonigle — ump said strike, robot ruled strike: upheld.
  7. 7Miguel Vargas — ump said strike, robot ruled strike: upheld.

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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