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Blue Notes · Umpire Grade2026-04-12

MIA @ DET

Home plate: Mike Estabrook

“Generous with the corners — the pitchers said thank you.”

C+
Umpire Grade
90.1% accurate
0.4
Run Favor
runs, DET
4
ABS Overturns
of 6 reviewed

What this shows — how Mike Estabrook called the 141 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 127 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: Agustín Ramírez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).1Challenge 2: Dillon Dingler — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Austin Slater — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Agustín Ramírez — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Agustín Ramírez — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).5Challenge 6: Riley Greene — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).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 ✓
    Riley Greene vs Tyler Phillips
  2. 2-0.21▲4 · 3-0 ball called strike· challenged ✓
    Austin Slater vs Tarik Skubal
  3. 3+0.13▼1 · 1-0 strike called ball
    Gleyber Torres vs Sandy Alcantara

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. 1Agustín Ramírez — ump said ball, robot ruled ball: upheld.
  2. 2Dillon Dingler — ump said ball, robot ruled strike: overturned.
  3. 3Austin Slater — ump said strike, robot ruled ball: overturned.
  4. 4Agustín Ramírez — ump said ball, robot ruled strike: overturned.
  5. 5Agustín Ramírez — ump said ball, robot ruled ball: upheld.
  6. 6Riley Greene — ump said strike, robot ruled ball: overturned.

Our tracked-rulebook zone matched the ABS ruling on 5 of 6 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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