Blue Notes · Umpire Grade2026-05-10
STL @ SD
Home plate: Andy Fletcher
“The kind of night where the umpire is the least of the story.”
Umpire Grade
93.5% accurate
Run Favor
runs, SD
ABS Overturns
of 3 reviewed
What this shows — how Andy Fletcher called the 155 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 145 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+0.39▲6 · 2-2 strike called ball
JJ Wetherholt vs Walker Buehler - 2+0.30▼5 · 3-1 strike called ball
Sung-Mun Song vs Kyle Leahy - 3+0.20▼1 · 2-1 strike called ball
Jackson Merrill vs Kyle Leahy
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.
- 1Xander Bogaerts — ump said strike, robot ruled strike: upheld.
- 2Walker Buehler — ump said ball, robot ruled ball: upheld.
- 3Nathan Church — ump said strike, robot ruled strike: 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.