10K
10K
Sat, Sep 19 · 10:00 AM
$77.77
Monarch Ultra 10km brings a fall race day to Peterborough on Saturday, September 19, 2026, with Millennium Park as the gathering point. The event pairs a 10K trail race with a 1K Kids Fun Run, making it a family-friendly option as well as a focused run for adults.
The route follows the Rotary Trail in East City beside the Otonabee River, giving the race a local, riverside feel. It sits within a broader running and conservation event that leans community-first rather than purely competitive.
For runners looking to stay connected to the local scene, it also fits neatly into the wider landscape of trail races in Peterborough and 10K races in Peterborough.
10K
Sat, Sep 19 · 10:00 AM
$77.77
1K
Sat, Sep 19 · 9:30 AM
$23.83
Prices from the organizer. Please check the official website for up-to-date times and pricing.
10K trail race in Peterborough on September 19, 2026
Start and finish at Millennium Park, 130 King Street
Out-and-back route along the Rotary Trail in East City
Course follows the Otonabee River
1K Kids Fun Run also takes place on race day
10K uses chip timing
Hydration station at the 5K turnaround
The 10K uses an out-and-back route from Millennium Park along the Rotary Trail in East City, beside the Otonabee River. The course is described as relatively flat and fast, with a hydration station at the 5K turnaround. The 10K starts and finishes at Millennium Park.
Millennium Park · 130 King Street, Peterborough, ON, Canada. This map shows the venue, not the course route.
The Running Directory combines organizer-provided details, official race links, and ongoing listing research. Always confirm final dates, prices, times, and course details with the race organizer before registering.
Last updated: October 2, 2026
Official registration(opens in a new tab)