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Blue Notes · Umpire Grade2026-08-31

BAL @ COL

Home plate: Sean Barber

“The challenge cart got its steps in.”

B
Umpire Grade
92.6% accurate
1.9
Run Favor
runs, COL
5
ABS Overturns
of 6 reviewed

What this shows — how Sean Barber called the 135 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 125 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: Blaze Alexander — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Hunter Goodman — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Pete Alonso — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Willi Castro — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).4Challenge 5: Coby Mayo — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5Challenge 6: Leody Taveras — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.69▲6 · 3-2 ball called strike· challenged ✓
    Pete Alonso vs Mark Manfredi
  2. 2-0.69▲7 · 3-2 ball called strike· challenged ✓
    Coby Mayo vs Mark Manfredi
  3. 3+0.20▼5 · 2-1 strike called ball
    Connor Norby vs Cade Povich

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. 1Blaze Alexander — ump said strike, robot ruled ball: overturned.
  2. 2Hunter Goodman — ump said ball, robot ruled strike: overturned.
  3. 3Pete Alonso — ump said strike, robot ruled ball: overturned.
  4. 4Willi Castro — ump said strike, robot ruled strike: upheld.
  5. 5Coby Mayo — ump said strike, robot ruled ball: overturned.
  6. 6Leody Taveras — ump said strike, robot ruled ball: overturned.

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

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