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Blue Notes · Umpire Grade2026-07-05

DET @ TEX

Home plate: John Tumpane

“The players kept asking for a second opinion — and kept getting one.”

C+
Umpire Grade
90.1% accurate
0.1
Run Favor
runs, TEX
6
ABS Overturns
of 8 reviewed

What this shows — how John Tumpane called the 152 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 137 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: Evan Carter — the ump called it a strike, the robot ruled strike (upheld — ump confirmed).1Challenge 2: Jake Rogers — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).2Challenge 3: Elias Díaz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).3Challenge 4: Elias Díaz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).4Challenge 5: Josh Smith — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).5Challenge 6: Elias Díaz — the ump called it a ball, the robot ruled strike (OVERTURNED — ump overruled).6Challenge 7: Spencer Torkelson — the ump called it a strike, the robot ruled ball (OVERTURNED — ump overruled).7Challenge 8: Jake Rogers — the ump called it a ball, the robot ruled ball (upheld — ump confirmed).8
strike called ballball called strikeABS overturnedABS upheld

The calls that moved the game

  1. 1+0.19▲9 · 2-0 strike called ball
    Spencer Torkelson vs Peyton Gray
  2. 2+0.13▼2 · 1-1 strike called ball
    Cam Cauley vs Casey Mize
  3. 3-0.13▲5 · 1-1 ball called strike
    Hao-Yu Lee vs Gavin Collyer

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

8 pitches went to the robots · 6 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.

  1. 1Evan Carter — ump said strike, robot ruled strike: upheld.
  2. 2Jake Rogers — ump said ball, robot ruled strike: overturned.
  3. 3Elias Díaz — ump said ball, robot ruled strike: overturned.
  4. 4Elias Díaz — ump said ball, robot ruled strike: overturned.
  5. 5Josh Smith — ump said strike, robot ruled ball: overturned.
  6. 6Elias Díaz — ump said ball, robot ruled strike: overturned.
  7. 7Spencer Torkelson — ump said strike, robot ruled ball: overturned.
  8. 8Jake Rogers — ump said ball, robot ruled ball: upheld.

Our tracked-rulebook zone matched the ABS ruling on 7 of 8 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.

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