That Dam Hill
SEP
19
2026
Marathon
Half Marathon
5 kilometers
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That Dam Hill Marathon and Ultra Races
The That Dam Hill event features several timed races at Springbank Park in London, Ontario, Canada. The races include a marathon, a half marathon, and a charity 5K fun run/walk. There are also timed events of 6 hours, 12 hours (night), and 24 hours, plus a 24-hour relay. The marathon course is a certified Boston Marathon qualifier.
The event is 100% volunteer-run. All net proceeds from the event go to the charitable partner. The event supports Dunn with Cancer and has helped raise funds for cancer research. Visit the organization's website for the most recent information.
Marathon
Marathon
Half Marathon
½ Marathon
5 km
Charity 5k Fun Run/walk
6 Hour Timed Race
24 Hour Timed Race
24 Hour Relay
12 Hour (night) Timed Race