Blue Notes · Umpire Grade2026-04-14
CHC @ PHI
Home plate: Mark Wegner
“Down the middle. Both dugouts had the same zone.”
Umpire Grade
93.8% accurate
Run Favor
runs, PHI
ABS Overturns
of 1 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 168 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▲7 · 2-2 ball called strike
Pete Crow-Armstrong vs Chase Shugart - 2-0.21▲9 · 3-0 ball called strike
Miguel Amaya vs Tanner Banks - 3+0.13▲7 · 1-0 strike called ball
Carson Kelly vs Chase Shugart
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
1 pitch went to the robots · 0 overturned (ump overruled) · 1 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Trea Turner — ump said strike, robot ruled strike: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 1 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.