Blue Notes · Umpire Grade2026-07-09
CHC @ BAL
Home plate: Paul Clemons
“Corner-to-corner and then some.”
Umpire Grade
89.4% accurate
Run Favor
runs, CHC
ABS Overturns
of 4 reviewed
What this shows — how Paul Clemons called the 141 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 126 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+0.69▼6 · 3-2 strike called ball
Pete Alonso vs Gavin Hollowell - 2+0.20▲7 · 2-1 strike called ball
Ian Happ vs Yennier Cano - 3+0.13▼1 · 1-1 strike called ball
Adley Rutschman vs David Peterson
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.
- 1Samuel Basallo — ump said strike, robot ruled ball: overturned.
- 2Samuel Basallo — ump said ball, robot ruled ball: upheld.
- 3Miguel Amaya — ump said ball, robot ruled ball: upheld.
- 4Michael Conforto — ump said strike, robot ruled strike: 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.