PIT @ STL
Home plate: Nick Mahrley
“Generous with the corners — the pitchers said thank you.”
What this shows — how Nick Mahrley called the 140 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 130 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+0.13▼1 · 1-1 strike called ball
JJ Wetherholt vs Jared Jones - 2-0.13▼3 · 1-1 ball called strike
Jimmy Crooks vs Jared Jones - 3-0.13▼8 · 1-1 ball called strike
Nolan Gorman vs Yohan Ramírez
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
1 pitch went to the robots · 1 overturned (ump overruled) · 0 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Henry Davis — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 1 of 1 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.