Barry & John's Backyard Ultra
Please check with Race Organiser for updates.
The next Barry & John's Dublin Mountain Backyard Ultra is on 9 May 2026 in Glencullen.
The backyard ultra is a form of ultramarathon race where competitors must consecutively run the distance of 6.706kms in less than one hour. When each lap is completed, the remaining time within the hour is used to recover and replenish for the next hour's race. The race finishes when one person completes one more lap than anyone else.
This event is the official Leinster BYU event as part of the All Ireland BYU Championship.
One 6.706K lap per hour - Last one standing format
