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Blue Notes · Umpire Grade2026-06-05

PIT @ ATL

Home plate: Ramon De Jesus

“The robots earned their keep tonight.”

B-
Umpire Grade
91.1% accurate
0.2
Run Favor
runs, ATL
6
ABS Overturns
of 8 reviewed

What this shows — how Ramon De Jesus called the 157 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 143 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: Nick Gonzales — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Sandy León — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Martín Pérez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).3Challenge 4: Henry Davis — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Ronald Acuña Jr. — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5Challenge 6: Sandy León — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).6Challenge 7: Sandy León — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).7Challenge 8: Ryan O'Hearn — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).8
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.39▲2 · 2-2 strike called ball· challenged ✓
    Oneil Cruz vs Martín Pérez
  2. 2-0.39▲4 · 2-2 ball called strike
    Jared Triolo vs Martín Pérez
  3. 3-0.39▼8 · 2-2 ball called strike· challenged ✓
    Ronald Acuña Jr. vs Brandan Bidois

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

8 pitches went to the robots · 6 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Nick Gonzales — ump said strike, robot ruled strike: upheld.
  2. 2Sandy León — ump said ball, robot ruled strike: overturned.
  3. 3Martín Pérez — ump said ball, robot ruled ball: upheld.
  4. 4Henry Davis — ump said ball, robot ruled strike: overturned.
  5. 5Ronald Acuña Jr. — ump said strike, robot ruled ball: overturned.
  6. 6Sandy León — ump said ball, robot ruled strike: overturned.
  7. 7Sandy León — ump said ball, robot ruled strike: overturned.
  8. 8Ryan O'Hearn — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 7 of 8 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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