Blue Notes · Umpire Grade2026-07-17
SF @ SEA
Home plate: Mark Ripperger
“An honest evening's grade: nothing loud, nothing missed by much.”
Umpire Grade
94.7% accurate
Run Favor
runs, SEA
ABS Overturns
of 5 reviewed
What this shows — how Mark Ripperger called the 151 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 143 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▼2 · 2-2 strike called ball
Josh Naylor vs Landen Roupp - 2+0.13▼3 · 1-1 strike called ball
Randy Arozarena vs Landen Roupp - 3+0.13▼3 · 1-0 strike called ball
J.P. Crawford vs Landen Roupp
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
5 pitches went to the robots · 2 overturned (ump overruled) · 3 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Casey Schmitt — ump said strike, robot ruled strike: upheld.
- 2Drew Cavanaugh — ump said ball, robot ruled ball: upheld.
- 3Randy Arozarena — ump said strike, robot ruled strike: upheld.
- 4Cal Raleigh — ump said strike, robot ruled ball: overturned.
- 5Cal Raleigh — ump said ball, robot ruled strike: overturned.
Our tracked-rulebook zone matched the ABS ruling on 4 of 5 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.