Blue Notes · Umpire Grade2026-04-01
“The zone kept to itself — the hitters said thanks.”
Umpire Grade
93.0% accurate
Run Favor
runs, PIT
ABS Overturns
of 5 reviewed
What this shows — how Rob Drake called the 156 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 145 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
strike called ballball called strikeABS overturnedABS upheld
The calls that moved the game
- 1-0.20▲4 · 2-1 ball called strike· challenged ✓
Nick Yorke vs Andrew Abbott - 2-0.19▼5 · 2-0 ball called strike
TJ Friedl vs Paul Skenes - 3+0.13▼5 · 1-0 strike called ball
TJ Friedl vs Paul Skenes
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
5 pitches went to the robots · 3 overturned (ump overruled) · 2 upheld (ump confirmed). This is the ABS system’s own measurement — Hawk-Eye optical ball-tracking, not our model.
- 1Nick Yorke — ump said strike, robot ruled ball: overturned.
- 2Spencer Steer — ump said strike, robot ruled strike: upheld.
- 3Marcell Ozuna — ump said strike, robot ruled ball: overturned.
- 4Gregory Soto — ump said ball, robot ruled ball: upheld.
- 5Tyler Stephenson — ump said strike, robot ruled ball: overturned.
Our tracked-rulebook zone matched the ABS ruling on 3 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.