Blue Notes · Umpire Grade2026-04-08
CHC @ TB
Home plate: Chad Whitson
“The kind of night where the umpire is the least of the story.”
Umpire Grade
96.0% accurate
Run Favor
runs, TB
ABS Overturns
of 4 reviewed
What this shows — how Chad Whitson called the 149 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
strike called ballball called strikeABS overturnedABS upheld
The calls that moved the game
- 1+0.69▼3 · 3-2 strike called ball
Jake Fraley vs Colin Rea - 2+0.20▲3 · 2-1 strike called ball
Michael Busch vs Joe Boyle - 3-0.10▲6 · 0-1 ball called strike
Dansby Swanson vs Jesse Scholtens
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 · 3 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Ben Williamson — ump said ball, robot ruled strike: overturned.
- 2Hunter Feduccia — ump said ball, robot ruled ball: upheld.
- 3Carson Kelly — ump said strike, robot ruled ball: overturned.
- 4Alex Bregman — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 1 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.