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RECORD: 0 HIT · 0 MISS · 12 OPEN · FIRST CALL RESOLVES AUG 12
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Blue Notes · Umpire Grade2026-04-16

COL @ HOU

Home plate: John Bacon

“The zone kept its promises.”

A
Umpire Grade
95.6% accurate
0.8
Run Favor
runs, COL
4
ABS Overturns
of 7 reviewed

What this shows — how John Bacon called the 180 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 172 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: Jose Altuve — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Tyler Freeman — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).2Challenge 3: Yainer Diaz — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).3Challenge 4: Isaac Paredes — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Cam Smith — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Hunter Goodman — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).6Challenge 7: Jose Altuve — 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. 1-0.28▼8 · 1-2 ball called strike
    Cam Smith vs Jimmy Herget
  2. 2+0.19▲3 · 2-0 strike called ball
    Brenton Doyle vs Ryan Weiss
  3. 3-0.13▲7 · 1-0 ball called strike
    Edouard Julien vs AJ Blubaugh

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 · 4 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.

  1. 1Jose Altuve — ump said ball, robot ruled strike: overturned.
  2. 2Tyler Freeman — ump said strike, robot ruled strike: upheld.
  3. 3Yainer Diaz — ump said strike, robot ruled ball: overturned.
  4. 4Isaac Paredes — ump said ball, robot ruled strike: overturned.
  5. 5Cam Smith — ump said strike, robot ruled strike: upheld.
  6. 6Hunter Goodman — ump said ball, robot ruled strike: overturned.
  7. 7Jose Altuve — ump said strike, robot ruled strike: upheld.

Our tracked-rulebook zone matched the ABS ruling on 3 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.