Blue Notes · Umpire Grade2026-07-05
PIT @ WSH
Home plate: Mark Wegner
“Solid and unspectacular — exactly what the job asks.”
Umpire Grade
95.0% accurate
Run Favor
runs, PIT
ABS Overturns
of 4 reviewed
What this shows — how Mark Wegner called the 179 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 170 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+0.30▲3 · 3-1 strike called ball· challenged
Nick Gonzales vs Cade Cavalli - 2+0.23▼5 · 0-2 strike called ball
Dylan Crews vs Mason Montgomery - 3-0.13▲9 · 1-0 ball called strike
Nick Gonzales vs Justin Lawrence
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.
- 1Keibert Ruiz — ump said ball, robot ruled ball: upheld.
- 2Bubba Chandler — ump said ball, robot ruled ball: upheld.
- 3Esmerlyn Valdez — ump said ball, robot ruled strike: overturned.
- 4Konnor Griffin — ump said strike, robot ruled strike: upheld.
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.