Blue Notes · Umpire Grade2026-04-14
“Corner-to-corner and then some.”
Umpire Grade
93.7% accurate
Run Favor
runs, HOU
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 134 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
- 1-0.19▲6 · 2-0 ball called strike· challenged ✓
Tyler Freeman vs Steven Okert - 2-0.13▼5 · 1-1 ball called strike
Christian Walker vs Antonio Senzatela - 3-0.13▼7 · 1-1 ball called strike· challenged ✓
Christian Walker vs Juan Mejia
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.
- 1Tyler Freeman — ump said strike, robot ruled ball: overturned.
- 2Christian Walker — ump said strike, robot ruled ball: 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 4 of 4 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.