Blue Notes · Umpire Grade2026-06-18
STL @ KC
Home plate: Ryan Blakney
“The Automated Ball-Strike System put in some overtime here.”
Umpire Grade
94.0% accurate
Run Favor
runs, STL
ABS Overturns
of 7 reviewed
What this shows — how Ryan Blakney called the 185 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 174 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▼5 · 2-2 ball called strike
Tyler Tolbert vs Max Rajcic - 2+0.19▲1 · 2-0 strike called ball
Iván Herrera vs Noah Cameron - 3-0.13▲5 · 1-1 ball called strike
Pedro Pagés vs Noah Cameron
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
7 pitches went to the robots · 5 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Salvador Perez — ump said strike, robot ruled ball: overturned.
- 2Nelson Velázquez — ump said ball, robot ruled strike: overturned.
- 3Salvador Perez — ump said strike, robot ruled ball: overturned.
- 4Pedro Pagés — ump said strike, robot ruled ball: overturned.
- 5Michael Massey — ump said ball, robot ruled strike: overturned.
- 6Tyler Tolbert — ump said strike, robot ruled strike: upheld.
- 7Salvador Perez — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 7 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.