Blue Notes · Umpire Grade2026-06-03
DET @ TB
Home plate: Derek Thomas
“Squeezed the edges; the hitters didn't mind at all.”
Umpire Grade
94.1% accurate
Run Favor
runs, DET
ABS Overturns
of 4 reviewed
What this shows — how Derek Thomas called the 118 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 111 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
strike called ballball called strikeABS overturnedABS upheld
The calls that moved the game
- 1+0.13▼2 · 1-1 strike called ball
Cedric Mullins vs Troy Melton - 2+0.13▲7 · 1-1 strike called ball
Kerry Carpenter vs Mason Englert - 3+0.13▼1 · 1-0 strike called ball
Jonathan Aranda vs Troy Melton
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
4 pitches went to the robots · 2 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Nick Fortes — ump said strike, robot ruled ball: overturned.
- 2Jake Rogers — ump said ball, robot ruled ball: upheld.
- 3Jake Rogers — ump said strike, robot ruled strike: upheld.
- 4Nick Fortes — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 2 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.