HOU @ SF
Home plate: Nate Tomlinson
“The kind of night where the umpire is the least of the story.”
What this shows — how Nate Tomlinson called the 133 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 126 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
- 1-0.20▼5 · 2-1 ball called strike
Drew Gilbert vs AJ Blubaugh - 2-0.13▼8 · 1-0 ball called strike
Osleivis Basabe vs Bryan Abreu - 3-0.09▼2 · 0-0 ball called strike
Rafael Devers vs Tatsuya Imai
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 · 2 overturned (ump overruled) · 1 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Christian Vázquez — ump said strike, robot ruled ball: overturned.
- 2Daulton Varsho — ump said ball, robot ruled strike: overturned.
- 3Cam Smith — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 3 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.