Blue Notes · Umpire Grade2026-03-28
TB @ STL
Home plate: David Rackley
“A steady night's work behind the plate.”
Umpire Grade
91.6% accurate
Run Favor
runs, STL
ABS Overturns
of 3 reviewed
What this shows — how David Rackley called the 167 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 153 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
- 1-0.21▲6 · 3-0 ball called strike
Jake Fraley vs Michael McGreevy - 2+0.20▲4 · 2-1 strike called ball
Junior Caminero vs Michael McGreevy - 3-0.20▼6 · 2-1 ball called strike
Alec Burleson vs Joe Boyle
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
3 pitches went to the robots · 0 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Jake Fraley — ump said strike, robot ruled strike: upheld.
- 2Nick Fortes — ump said ball, robot ruled ball: upheld.
- 3Pedro Pagés — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.