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RECORD: 0 HIT · 0 MISS · 15 OPEN · FIRST CALL RESOLVES AUG 12
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Blue Notes · Umpire Grade2026-07-28

AZ @ PIT

Home plate: John Bacon

“The strike zone picked a side, and wasn't shy about it.”

B
Umpire Grade
92.2% accurate
2.0
Run Favor
runs, PIT
3
ABS Overturns
of 7 reviewed

What this shows — how John Bacon called the 206 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 190 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: Endy Rodríguez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: James McCann — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: James McCann — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: James McCann — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Geraldo Perdomo — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Endy Rodríguez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).6Challenge 7: Tyler Callihan — 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. 1-0.69▲9 · 3-2 ball called strike
    Nolan Arenado vs Ron Marinaccio
  2. 2-0.39▲7 · 2-2 ball called strike
    Tim Tawa vs Brandon Eisert
  3. 3+0.20▼8 · 2-1 strike called ball
    Bryan Reynolds vs Ryan Thompson

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

  1. 1Endy Rodríguez — ump said ball, robot ruled ball: upheld.
  2. 2James McCann — ump said strike, robot ruled ball: overturned.
  3. 3James McCann — ump said strike, robot ruled ball: overturned.
  4. 4James McCann — ump said strike, robot ruled ball: overturned.
  5. 5Geraldo Perdomo — ump said strike, robot ruled strike: upheld.
  6. 6Endy Rodríguez — ump said ball, robot ruled ball: upheld.
  7. 7Tyler Callihan — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 2 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

Paste the link anywhere — the card previews on its own. Or take it with you.

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