The Leftovers Mystery Race

Dundas, Canada • 6 Dec 2025

The Leftovers Mystery Race is a unique running event held at Dundas Valley Conservation Area in Dundas, Ontario, Canada. Scheduled for December 6, 2025, this race offers participants a choice of three mystery distances: short (6 km or less), medium (10-15 km), and long (16-25 km), with the exact routes revealed on race day. The course is well-marked and scenic, providing a friendly atmosphere with top-notch fellow runners. Registration includes park entrance, parking, race swag, and a finisher medal, though the specific items are a surprise and may vary. The event encourages fun with costume awards and a casual, old-school timing approach without chip timing or extensive aid stations. Visit the organization's website for the most recent information.

Race information

25 km
Long Distance (16-25km)
15 km
Medium Distance (10-15km)
6 km
Short Distance (6k or Less)
Visit the organization's website for the most recent information.
Trail runs nearby

The Ridge Runner is a summer trail running event held in the Hamilton area, Ontario, Canada, offering a variety of race distances including a 1K kids race, 5K, 10K, and a 21K half marathon. Participants experience rugged, scenic ridge trails with technical sections, climbs, and forested paths that s..

The Sunburn Solstice Trail Run takes place at Marydale Park in Mount Hope, Ontario, Canada. This unique event celebrates the longest day of the year with a 15-hour, 23-minute, and 31-second timed trail run on a scenic 3.7 km loop featuring tree-covered trails and open fields with rolling hills. Part..

The First Blaze Trail Race 2025 is a unique point-to-point trail running event held on the Toronto Bruce Trail, starting at Kelso Conservation Area in Milton, Ontario. Scheduled for July 12, 2025, it offers three challenging distances: a 50km race covering the entire Toronto Bruce Trail section, a 2..

The Tally in the Valley Trail Race takes place at the Dundas Valley Conservation Area in Hamilton, Ontario, Canada. This event offers various race options including a 7 km loop through scenic Carolinian forest with rolling hills and about 130m elevation gain per loop. Participants can choose distanc..

The Wolfpack Ultra Championship is a premier trail running event held in Hamilton, Ontario, Canada, showcasing the rugged and scenic trails of Conservation Halton. Scheduled for September 20, 2025, this ultra-running challenge offers a 50K solo race and a 50K team relay (5 x 10K legs), catering to b..

The Willibald Pasture Dash is a cross-country style running event held at Willibald Farm Distillery & Brewery in Ayr, Ontario, Canada. Participants can choose between a 5km or 10km race, running loops of a scenic 2.5km pasture course. The event offers a rustic, country atmosphere with farm sights an..