That Dam Hill Marathon and Ultra Races
That Dam Hill Marathon and Ultra Races are back for 2026! This 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, Dunn with Cancer, supporting cancer research. Since 2020, $1.6 million has been raised for cancer research by Dunn with Cancer!
More than a spectator friendly certified marathon race, That Dam Hill Marathon and Ultra Races is also London Ontario’s only ultra marathon timed race. And YES, That Dam Hill is a certified Boston Marathon Qualifier!
And don’t worry, the hill isn’t that big. If anything, it’s more of a molehill.
RACES:
- Charity 5K Fun Run/Walk in support of Dunn with Cancer
- ½ Marathon
- Marathon
- 6 Hour Timed Race
- 12 Hour (Night) Timed Race
- 24 Hour Timed Race
- 24 Hour Relay
