Fun Run Photo 1571939

Persistence Backyard Ultra 2025

Date
August 2, 2025
Location
Arva, Ontario
Events
1 Races

About Persistence Backyard Ultra 2025

The Persistence Backyard Ultra is a challenging endurance race held in Arva, Ontario. Participants run a 6.7056 km loop every hour, repeating until only one runner remains, testing stamina and strategy. This event is affiliated with Lazarus Lake's Big Dog's Backyard Ultra and offers competitors a chance to qualify for this prestigious race.

The course features a 3.36 km loop done twice each hour, comprising crushed stone trails, grass, and dirt roads. To promote community and charity, a portion of registration fees supports the Children's Health Foundation. The race is limited to 65 participants to maintain an intimate, competitive atmosphere.

Race Schedule

Boston Qualifier

Persistence Backyard Ultra 2025 - Persistence Backyard Ultra

August 2, 2025
Other Distances

Course Details

  • 3.36 km loop completed twice per hour to meet distance requirement
  • Terrain includes crushed stone trails, grassy areas, and dirt roads
  • Designed to test endurance and strategy
  • Event limits participants to ensure quality experience

Highlights

  • Run a 6.7056 km loop every hour until a single winner remains
  • Affiliated with Lazarus Lake's Big Dog's Backyard Ultra
  • Course consists of crushed stone trails, grass, and dirt roads
  • Participant cap of 65 runners
  • Portion of registration fees donated to Children's Health Foundation

RACE DAY COUNTDOWN

175
Days
175
Hours
175
Minutes
Date
August 2, 2025
Season
Fall (September-November)
Location
Arva, Ontario
Avg Temp
Warm (20-30°C)
Avg Humidity