BOS @ LAA
Home plate: Steven Jaschinski
“The kind of night where the umpire is the least of the story.”
What this shows — how Steven Jaschinski called the 154 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 144 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
- 1-0.39▲9 · 2-2 ball called strike· challenged ✓
Caleb Durbin vs Brent Suter - 2+0.13▼6 · 1-1 strike called ball
Nolan Schanuel vs Sonny Gray - 3-0.13▲1 · 1-0 ball called strike
Anthony Seigler vs Sam Aldegheri
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
4 pitches went to the robots · 2 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Connor Wong — ump said ball, robot ruled strike: overturned.
- 2Wade Meckler — ump said strike, robot ruled strike: upheld.
- 3Willson Contreras — ump said strike, robot ruled strike: upheld.
- 4Caleb Durbin — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 3 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.