Selected Umpire
Brian O'Nora
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Current profile selection.
Assignments captured in the available MLB data.
Plate assignments across all tracked seasons.
Distinct MLB seasons with at least one assignment.
Combined first, second, and third base assignments.
Average combined runs in this umpire’s plate games.
Average game length when working the plate.
Average attendance in this umpire’s plate games.
Most recent MLB assignments for Brian O'Nora, including position and total runs.
| Date | Matchup | Position | Venue | Status | Total Runs |
|---|---|---|---|---|---|
| 2026-04-26 | Detroit Tigers at Cincinnati Reds | Home Plate | Great American Ball Park | Final | 11.0 |
| 2026-04-25 | Detroit Tigers at Cincinnati Reds | First Base | Great American Ball Park | Final | 11.0 |
| 2026-04-24 | Detroit Tigers at Cincinnati Reds | Second Base | Great American Ball Park | Final | 17.0 |
| 2026-04-23 | Atlanta Braves at Washington Nationals | Third Base | Nationals Park | Final | 9.0 |
| 2026-04-22 | Atlanta Braves at Washington Nationals | Home Plate | Nationals Park | Final | 14.0 |
| 2026-04-21 | Atlanta Braves at Washington Nationals | First Base | Nationals Park | Final | 15.0 |
| 2026-04-20 | Atlanta Braves at Washington Nationals | Second Base | Nationals Park | Final | 13.0 |
| 2026-04-12 | San Francisco Giants at Baltimore Orioles | Third Base | Oriole Park at Camden Yards | Final | 8.0 |
| 2026-04-11 | San Francisco Giants at Baltimore Orioles | Home Plate | Oriole Park at Camden Yards | Final | 8.0 |
| 2026-04-10 | San Francisco Giants at Baltimore Orioles | First Base | Oriole Park at Camden Yards | Final | 9.0 |
| 2026-04-09 | Arizona Diamondbacks at New York Mets | Second Base | Citi Field | Final | 8.0 |
| 2026-04-08 | Arizona Diamondbacks at New York Mets | Third Base | Citi Field | Final | 9.0 |
| 2026-04-07 | Arizona Diamondbacks at New York Mets | Home Plate | Citi Field | Final | 7.0 |
| 2026-04-05 | San Diego Padres at Boston Red Sox | First Base | Fenway Park | Final | 14.0 |
| 2026-04-04 | San Diego Padres at Boston Red Sox | Second Base | Fenway Park | Final | 5.0 |