Blue Notes · Umpire Grade2026-04-20
HOU @ CLE
Home plate: Andy Fletcher
“Called a fair game and let the players decide it.”
Umpire Grade
95.7% accurate
Run Favor
runs, HOU
ABS Overturns
of 4 reviewed
What this shows — how Andy Fletcher called the 184 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 176 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▼5 · 2-0 ball called strike
George Valera vs Spencer Arrighetti - 2-0.13▼5 · 1-1 ball called strike
Kyle Manzardo vs Spencer Arrighetti - 3+0.13▲8 · 1-1 strike called ball
Carlos Correa vs Tim Herrin
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 · 3 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Taylor Trammell — ump said ball, robot ruled strike: overturned.
- 2José Ramírez — ump said strike, robot ruled strike: upheld.
- 3Yainer Diaz — ump said strike, robot ruled ball: overturned.
- 4Yainer Diaz — ump said strike, robot ruled ball: overturned.
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.