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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 (6k 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 participants. The event embraces a casual vibe with no chip timing, minimal aid stations, and creative awards for costumes and fun outfits. Visit the organization's website for the most recent information.

Canada Ontario Dundas

Race information

Website Registration
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.
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