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Blue Notes · Umpire Grade2026-05-17

MIL @ MIN

Home plate: Junior Valentine

“Reliable as a Tuesday: no complaints, no headlines.”

A-
Umpire Grade
94.1% accurate
0.1
Run Favor
runs, MIL
4
ABS Overturns
of 6 reviewed

What this shows — how Junior Valentine called the 170 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 160 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: William Contreras — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Victor Caratini — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: William Contreras — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Ryan Jeffers — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Victor Caratini — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).5Challenge 6: William Contreras — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).6
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.39▼7 · 2-2 ball called strike· challenged ✓
    Ryan Jeffers vs DL Hall
  2. 2+0.13▲4 · 1-1 strike called ball· challenged ✓
    David Hamilton vs Bailey Ober
  3. 3+0.13▼7 · 1-1 strike called ball
    Ryan Jeffers vs DL Hall

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. 1William Contreras — ump said ball, robot ruled strike: overturned.
  2. 2Victor Caratini — ump said ball, robot ruled strike: overturned.
  3. 3William Contreras — ump said ball, robot ruled strike: overturned.
  4. 4Ryan Jeffers — ump said strike, robot ruled ball: overturned.
  5. 5Victor Caratini — ump said ball, robot ruled ball: upheld.
  6. 6William Contreras — ump said ball, robot ruled ball: upheld.

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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