STL @ CHC
Home plate: Brock Ballou
“Pitchers earned every strike the hard way.”
What this shows — how Brock Ballou called the 152 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 141 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
The calls that moved the game
- 1-0.30▲1 · 3-1 ball called strike
Alec Burleson vs Javier Assad - 2+0.13▼1 · 1-0 strike called ball
Carson Kelly vs Matthew Liberatore - 3+0.13▼3 · 1-0 strike called ball
Nico Hoerner vs Matthew Liberatore
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 · 1 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Iván Herrera — ump said ball, robot ruled ball: upheld.
- 2Iván Herrera — ump said ball, robot ruled strike: overturned.
- 3Alex Bregman — 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.