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Blue Notes · Umpire Grade2026-05-16

BAL @ WSH

Home plate: Chris Conroy

“Tonight's zone had a rooting interest.”

A-
Umpire Grade
94.4% accurate
1.1
Run Favor
runs, WSH
4
ABS Overturns
of 6 reviewed

What this shows — how Chris Conroy called the 160 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 151 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: Keibert Ruiz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Jacob Young — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: James Wood — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Leody Taveras — 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: Jeremiah Jackson — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.69▲9 · 3-2 ball called strike· challenged ✓
    Coby Mayo vs Paxton Schultz
  2. 2-0.13▲2 · 1-1 ball called strike
    Coby Mayo vs Cade Cavalli
  3. 3-0.09▲7 · 0-0 ball called strike
    Tyler O'Neill vs Cade Cavalli

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

  1. 1Keibert Ruiz — ump said ball, robot ruled strike: overturned.
  2. 2Jacob Young — ump said strike, robot ruled ball: overturned.
  3. 3James Wood — ump said strike, robot ruled ball: overturned.
  4. 4Leody Taveras — ump said strike, robot ruled strike: upheld.
  5. 5Coby Mayo — ump said strike, robot ruled ball: overturned.
  6. 6Jeremiah Jackson — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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