Blue Notes · Umpire Grade2026-05-09
HOU @ CIN
Home plate: David Rackley
“No notes. Well, one: nicely done.”
Umpire Grade
96.9% accurate
Run Favor
runs, HOU
ABS Overturns
of 4 reviewed
What this shows — how David Rackley called the 130 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 126 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
- 1-0.19▼5 · 2-0 ball called strike
Will Benson vs Spencer Arrighetti - 2-0.13▼4 · 1-0 ball called strike
Nathaniel Lowe vs Spencer Arrighetti - 3+0.09▼5 · 0-0 strike called ball
Will Benson vs Spencer Arrighetti
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.
- 1Cam Smith — ump said strike, robot ruled strike: upheld.
- 2Sal Stewart — ump said ball, robot ruled strike: overturned.
- 3Jose Altuve — ump said ball, robot ruled strike: overturned.
- 4Jose Trevino — ump said ball, robot ruled ball: 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.