Blue Notes · Umpire Grade2026-05-10
ATL @ LAD
Home plate: John Tumpane
“A tilt to the evening — the numbers say which way.”
Umpire Grade
92.2% accurate
Run Favor
runs, LAD
ABS Overturns
of 4 reviewed
What this shows — how John Tumpane called the 128 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 118 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 strike called ball
Hyeseong Kim vs Robert Suarez - 2+0.39▼8 · 2-2 strike called ball
Alex Call vs Tyler Kinley - 3+0.28▼5 · 1-2 strike called ball· challenged ✓
Alex Call vs Bryce Elder
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 · 2 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Alex Call — ump said ball, robot ruled strike: overturned.
- 2Sean Murphy — ump said ball, robot ruled ball: upheld.
- 3Alex Call — ump said ball, robot ruled strike: overturned.
- 4Alex Call — 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.