Blue Notes · Umpire Grade2026-07-22
“Called a fair game and let the players decide it.”
Umpire Grade
96.5% accurate
Run Favor
runs, BOS
ABS Overturns
of 3 reviewed
What this shows — how Rob Drake called the 144 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 139 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
- 1-0.28▲3 · 1-2 ball called strike
Jackson Holliday vs Brayan Bello - 2+0.13▼2 · 1-1 strike called ball
Jarren Duran vs Kyle Bradish - 3-0.13▲3 · 1-1 ball called strike
Jackson Holliday vs Brayan Bello
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.
- 1Carlos Narváez — ump said ball, robot ruled ball: upheld.
- 2Carlos Narváez — ump said strike, robot ruled ball: overturned.
- 3Chadwick Tromp — ump said strike, robot ruled ball: overturned.
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.