That Dam Hill Marathon and Ultra Races will be back in 2020! 

Please save the date:

September 19, 2020

Springbank Park
1085 Commissioners Road West
London, Ontario, Canada


5K Run/Walk (Charity)
½ Marathon
Marathon Relay (Charity)
12 Hour (Night) Timed Race
24 Hour Timed Race
24 Hour Relay (Charity)

8:00 AM Start Time
3:00 PM for the 5K Run/Walk
8:00 PM for the 12 Hour Night Race

Registration is open now!

Click here to register for That Dam Hill Marathon and Ultra Races

Please support our designated charities!
        Dunn With Cancer logo      

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. If you register for a timed race, the first 42.2km (26.2 miles) you complete will automatically give you a certified marathon time. And YES, That Dam Hill is a certified Boston Marathon Qualifier!

In addition to the marathon, the course is also certified for the following distances: Half-marathon, Marathon, 50 km, 50 mile, 100 km, and 100 mile.

And don’t worry, the hill isn’t that big. If anything, it’s more of a molehill.