Blue Notes · Umpire Grade2026-04-06
HOU @ COL
Home plate: Nestor Ceja
“Quietly excellent. The best umpiring is the kind you forget was there.”
Umpire Grade
96.3% accurate
Run Favor
runs, HOU
ABS Overturns
of 4 reviewed
What this shows — how Nestor Ceja called the 136 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 131 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+0.23▼1 · 0-2 strike called ball
Hunter Goodman vs Cody Bolton - 2-0.13▼2 · 1-0 ball called strike
Jake McCarthy vs Cody Bolton - 3+0.13▲9 · 1-0 strike called ball
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 · 1 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Jose Altuve — ump said ball, robot ruled strike: overturned.
- 2Kyle Karros — ump said strike, robot ruled strike: upheld.
- 3Troy Johnston — ump said strike, robot ruled strike: upheld.
- 4Yainer Diaz — ump said ball, robot ruled ball: upheld.
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.