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Blue Notes · Umpire Grade2026-08-17

DET @ PIT

Home plate: Ben May

“The robots earned their keep tonight.”

B-
Umpire Grade
91.7% accurate
1.1
Run Favor
runs, DET
6
ABS Overturns
of 9 reviewed

What this shows — how Ben May called the 168 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 154 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: Henry Davis — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).1Challenge 2: Henry Davis — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Henry Davis — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Nick Gonzales — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).4Challenge 5: Esmerlyn Valdez — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).5Challenge 6: Henry Davis — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).6Challenge 7: Camilo Doval — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).7Challenge 8: Dillon Dingler — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).8Challenge 9: Dillon Dingler — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).9
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.69▲8 · 3-2 strike called ball· challenged ✓
    Max Clark vs Gregory Soto
  2. 2+0.28▼9 · 1-2 strike called ball· challenged ✓
    Esmerlyn Valdez vs Kenley Jansen
  3. 3+0.23▲1 · 0-2 strike called ball· challenged ✓
    Kevin McGonigle vs Carmen Mlodzinski

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

9 pitches went to the robots · 6 overturned (ump overruled) · 3 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Henry Davis — ump said ball, robot ruled strike: overturned.
  2. 2Henry Davis — ump said ball, robot ruled strike: overturned.
  3. 3Henry Davis — ump said ball, robot ruled strike: overturned.
  4. 4Nick Gonzales — ump said strike, robot ruled ball: overturned.
  5. 5Esmerlyn Valdez — ump said strike, robot ruled strike: upheld.
  6. 6Henry Davis — ump said ball, robot ruled strike: overturned.
  7. 7Camilo Doval — ump said ball, robot ruled ball: upheld.
  8. 8Dillon Dingler — ump said strike, robot ruled strike: upheld.
  9. 9Dillon Dingler — ump said ball, robot ruled strike: overturned.

Our tracked-rulebook zone matched the ABS ruling on 9 of 9 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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