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Blue Notes · Umpire Grade2026-08-15

MIA @ CIN

Home plate: Sean Barber

“A busy night for the machines in the truck.”

B
Umpire Grade
92.3% accurate
0.6
Run Favor
runs, CIN
7
ABS Overturns
of 10 reviewed

What this shows — how Sean Barber called the 155 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 143 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: Joe Mack — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: JJ Bleday — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).2Challenge 3: Joe Mack — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Tyler Stephenson — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Esteury Ruiz — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5Challenge 6: Owen Caissie — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).6Challenge 7: Tyler Stephenson — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).7Challenge 8: Griffin Conine — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).8Challenge 9: Joe Mack — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).9Challenge 10: Tyler Stephenson — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).10
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1-0.69▲4 · 3-2 ball called strike· challenged ✓
    Esteury Ruiz vs Brady Singer
  2. 2+0.28▲3 · 1-2 strike called ball· challenged ✓
    Esteury Ruiz vs Brady Singer
  3. 3+0.13▼1 · 1-1 strike called ball· challenged ✓
    JJ Bleday vs Ryan Gusto

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 · 7 overturned (ump overruled) · 3 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Joe Mack — ump said ball, robot ruled strike: overturned.
  2. 2JJ Bleday — ump said strike, robot ruled ball: overturned.
  3. 3Joe Mack — ump said ball, robot ruled strike: overturned.
  4. 4Tyler Stephenson — ump said ball, robot ruled strike: overturned.
  5. 5Esteury Ruiz — ump said strike, robot ruled ball: overturned.
  6. 6Owen Caissie — ump said strike, robot ruled ball: overturned.
  7. 7Tyler Stephenson — ump said ball, robot ruled ball: upheld.
  8. 8Griffin Conine — ump said strike, robot ruled strike: upheld.
  9. 9Joe Mack — ump said ball, robot ruled ball: upheld.
  10. 10Tyler Stephenson — ump said ball, robot ruled strike: overturned.

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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