Blue Notes · Umpire Grade2026-04-14
“Down the middle. Both dugouts had the same zone.”
Umpire Grade
95.1% accurate
Run Favor
runs, COL
ABS Overturns
of 4 reviewed
What this shows — how Rob Drake called the 143 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 136 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
- 1-0.13▼5 · 1-1 ball called strike
Christian Walker vs Antonio Senzatela - 2-0.13▲2 · 1-0 ball called strike
TJ Rumfield vs Colton Gordon - 3-0.13▲8 · 1-0 ball called strike
Tyler Freeman vs Bryan King
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 Hawkeye ground truth, no model involved.
- 1Tyler Freeman — ump said ball, robot ruled strike: overturned.
- 2Christian Walker — ump said ball, robot ruled strike: overturned.
- 3Christian Vázquez — ump said ball, robot ruled ball: upheld.
- 4Mickey Moniak — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 2 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.