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Blue Notes · Umpire Grade2026-07-05

MIA @ ATH

Home plate: Junior Valentine

“The challenge cart got its steps in.”

B
Umpire Grade
92.4% accurate
0.2
Run Favor
runs, MIA
5
ABS Overturns
of 7 reviewed

What this shows — how Junior Valentine called the 198 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 183 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: Esteury Ruiz — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).1Challenge 2: Brian Navarreto — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Brian Serven — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Otto Lopez — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Max Muncy — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5Challenge 6: Joe Mack — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).6Challenge 7: Jonah Heim — 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▲3 · 3-2 ball called strike· challenged ✓
    Esteury Ruiz vs Gage Jump
  2. 2+0.39▲6 · 2-2 strike called ball
    Esteury Ruiz vs Justin Sterner
  3. 3-0.30▼6 · 3-1 ball called strike
    Brian Serven vs Eury Pérez

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. 1Esteury Ruiz — ump said strike, robot ruled ball: overturned.
  2. 2Brian Navarreto — ump said ball, robot ruled strike: overturned.
  3. 3Brian Serven — ump said ball, robot ruled strike: overturned.
  4. 4Otto Lopez — ump said strike, robot ruled ball: overturned.
  5. 5Max Muncy — ump said strike, robot ruled ball: overturned.
  6. 6Joe Mack — ump said ball, robot ruled ball: upheld.
  7. 7Jonah Heim — ump said strike, robot ruled strike: upheld.

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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