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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, encouraging fun "tradesies" among runners. The event embraces a casual, old-school timing approach and encourages costumes and creative awards, making it a festive year-end race experience. Visit the organization's website for the most recent information.

Canada Ontario Dundas

Race information

Website Registration
21 km
Long Distance (16-25 Km)
13 km
Medium Distance (10-15 Km)
6 km
Short Distance (6k or Less)
Visit the organization's website for the most recent information.
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