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Blue Notes · Umpire Grade2026-08-25

MIL @ NYM

Home plate: Hunter Wendelstedt

“Hawkeye clocked in early and stayed late.”

B-
Umpire Grade
91.5% accurate
0.3
Run Favor
runs, NYM
6
ABS Overturns
of 10 reviewed

What this shows — how Hunter Wendelstedt called the 164 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 150 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: Luis Torrens — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: William Contreras — 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: Zac Thornton — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).4Challenge 5: Gary Sánchez — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Jake Bauers — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).6Challenge 7: Luis Torrens — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).7Challenge 8: Luis Torrens — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).8Challenge 9: William Contreras — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).9Challenge 10: Luis Torrens — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).10
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.28▲9 · 1-2 strike called ball· challenged ✓
    Garrett Mitchell vs Jefry Yan
  2. 2-0.19▲9 · 2-0 ball called strike· challenged ✓
    Jake Bauers vs Austin Warren
  3. 3+0.13▲1 · 1-1 strike called ball· challenged ✓
    William Contreras vs Zac Thornton

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

10 pitches went to the robots · 6 overturned (ump overruled) · 4 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Luis Torrens — ump said ball, robot ruled strike: overturned.
  2. 2William Contreras — ump said ball, robot ruled strike: overturned.
  3. 3William Contreras — ump said ball, robot ruled strike: overturned.
  4. 4Zac Thornton — ump said ball, robot ruled ball: upheld.
  5. 5Gary Sánchez — ump said strike, robot ruled strike: upheld.
  6. 6Jake Bauers — ump said strike, robot ruled ball: overturned.
  7. 7Luis Torrens — ump said ball, robot ruled strike: overturned.
  8. 8Luis Torrens — ump said ball, robot ruled ball: upheld.
  9. 9William Contreras — ump said ball, robot ruled strike: overturned.
  10. 10Luis Torrens — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 10 of 10 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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