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Blue Notes · Umpire Grade2026-06-24

KC @ TB

Home plate: Mike Muchlinski

“Hawkeye did more talking than the umpire tonight.”

C+
Umpire Grade
90.7% accurate
0.0
Run Favor
runs, TB
5
ABS Overturns
of 7 reviewed

What this shows — how Mike Muchlinski called the 151 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 137 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: Ben Williamson — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Nick Fortes — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Salvador Perez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Isaac Collins — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).4Challenge 5: Salvador Perez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Junior Caminero — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).6Challenge 7: Nick Fortes — 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+0.39▲4 · 2-2 strike called ball· challenged ✓
    Kameron Misner vs Griffin Jax
  2. 2+0.39▼4 · 2-2 strike called ball· challenged ✓
    Jonathan Aranda vs Noah Cameron
  3. 3-0.20▲5 · 2-1 ball called strike
    Carter Jensen vs Griffin Jax

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. 1Ben Williamson — ump said strike, robot ruled ball: overturned.
  2. 2Nick Fortes — ump said ball, robot ruled strike: overturned.
  3. 3Salvador Perez — ump said ball, robot ruled strike: overturned.
  4. 4Isaac Collins — ump said strike, robot ruled strike: upheld.
  5. 5Salvador Perez — ump said ball, robot ruled strike: overturned.
  6. 6Junior Caminero — ump said strike, robot ruled strike: upheld.
  7. 7Nick Fortes — 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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