Blue Notes · Umpire Grade2026-06-02
SF @ MIL
Home plate: Paul Clemons
“A steady night's work behind the plate.”
Umpire Grade
93.6% accurate
Run Favor
runs, SF
ABS Overturns
of 2 reviewed
What this shows — how Paul Clemons called the 172 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 161 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
- 1-0.39▼4 · 2-2 ball called strike
Sal Frelick vs Trevor McDonald - 2+0.39▼7 · 2-2 strike called ball
William Contreras vs Caleb Kilian - 3+0.30▲1 · 3-1 strike called ball
Willy Adames vs Kyle Harrison
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
2 pitches went to the robots · 1 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1William Contreras — ump said strike, robot ruled ball: overturned.
- 2Rafael Devers — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.