STL @ CHC
Home plate: Nate Tomlinson
“Quietly excellent. The best umpiring is the kind you forget was there.”
What this shows — how Nate Tomlinson called the 183 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 175 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
- 1-0.28▲6 · 1-2 ball called strike
Joshua Báez vs Aaron Civale - 2-0.21▲1 · 3-0 ball called strike
JJ Wetherholt vs Edward Cabrera - 3+0.21▲4 · 3-0 strike called ball
Masyn Winn vs Edward Cabrera
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.
- 1Miguel Amaya — ump said ball, robot ruled ball: upheld.
- 2Michael Conforto — ump said ball, robot ruled strike: overturned.
- 3Pete Crow-Armstrong — 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.