Blue Notes · Umpire Grade2026-04-30
COL @ CIN
Home plate: Bruce Dreckman
“Textbook top to bottom — a quiet masterclass.”
Umpire Grade
96.9% accurate
Run Favor
runs, COL
ABS Overturns
of 4 reviewed
What this shows — how Bruce Dreckman called the 127 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 123 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▲1 · 1-0 ball called strike
Tyler Freeman vs Andrew Abbott - 2-0.13▼5 · 1-0 ball called strike
Matt McLain vs Michael Lorenzen - 3-0.09▼2 · 0-0 ball called strike
Nathaniel Lowe vs Michael Lorenzen
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.
- 1Hunter Goodman — ump said strike, robot ruled ball: overturned.
- 2Troy Johnston — ump said strike, robot ruled strike: upheld.
- 3Tyler Stephenson — ump said strike, robot ruled ball: overturned.
- 4Dane Myers — ump said strike, robot ruled strike: upheld.
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.