SD @ SEA
Home plate: Brian Walsh
“Not the sharpest, and the grade agrees.”
What this shows — how Brian Walsh called the 146 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 133 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▲8 · 3-1 strike called ball
Fernando Tatis Jr. vs Nick Davila - 2+0.28▼2 · 1-2 strike called ball
Jhonny Pereda vs Walker Buehler - 3+0.19▼3 · 2-0 strike called ball
Leo Rivas vs Walker Buehler
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.
- 1Jhonny Pereda — ump said ball, robot ruled ball: upheld.
- 2Rodolfo Durán — ump said ball, robot ruled strike: overturned.
- 3Gavin Sheets — 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.