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Blue Notes · Umpire Grade2026-06-27

TEX @ TOR

Home plate: Alex MacKay

“Hawkeye did more talking than the umpire tonight.”

C
Umpire Grade
89.5% accurate
1.1
Run Favor
runs, TOR
6
ABS Overturns
of 7 reviewed

What this shows — how Alex MacKay called the 162 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 145 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: Alejandro Kirk — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Elias Díaz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Alejandro Kirk — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Alejandro Kirk — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Elias Díaz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).5Challenge 6: Alejandro Kirk — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).6Challenge 7: Elias Díaz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).7
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.69▲5 · 3-2 ball called strike
    Joc Pederson vs Dylan Cease
  2. 2+0.30▼6 · 3-1 strike called ball· challenged ✓
    Ernie Clement vs Joe Ross
  3. 3+0.23▼1 · 0-2 strike called ball
    Vladimir Guerrero Jr. vs Cal Quantrill

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 · 6 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Alejandro Kirk — ump said ball, robot ruled strike: overturned.
  2. 2Elias Díaz — ump said ball, robot ruled strike: overturned.
  3. 3Alejandro Kirk — ump said ball, robot ruled strike: overturned.
  4. 4Alejandro Kirk — ump said ball, robot ruled strike: overturned.
  5. 5Elias Díaz — ump said ball, robot ruled strike: overturned.
  6. 6Alejandro Kirk — ump said ball, robot ruled ball: upheld.
  7. 7Elias Díaz — ump said ball, robot ruled strike: overturned.

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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