CHC @ ATL
Home plate: John Libka
“A steady night's work behind the plate.”
What this shows — how John Libka called the 139 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 129 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▲7 · 3-1 strike called ball
Pete Crow-Armstrong vs Reynaldo López - 2-0.28▼1 · 1-2 ball called strike
Drake Baldwin vs Ben Brown - 3-0.23▼2 · 0-2 ball called strike· challenged ✓
Dominic Smith vs Ben Brown
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
2 pitches went to the robots · 2 overturned (ump overruled) · 0 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Dominic Smith — ump said strike, robot ruled ball: overturned.
- 2Miguel Amaya — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 2 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.