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That Dam Hill Marathon and Ultra Races

That Dam Hill logo
Hosted by That Dam Hill
Sep 18, 2027Saturday
Springbank Park1085 Commissioners Road West, London ON, Canada

Six races. One park. One cause worth running for.

From a half marathon at dawn to a 12-hour individual night race starting at 8 PM, That Dam Hill packs an entire ultra festival into Springbank Park. Earn a belt buckle for 100 km covered, and know every step supports brain tumour research.


Highlights

  • Race laps through one of London Ontario's most beloved parks

  • 12-hour race kicks off at 8 PM under Springbank Park darkness

  • Certified marathon course counts toward your Boston qualifying time

  • Earn a coveted belt buckle by hitting 100 km in 24 hours

  • Fast, flat 2.3 km loop set up for Canadian age group records


What's included in the entry


Races offered at this event

6 Hour

Sat, 8:00 AM

24 Hour Relay

Sat, 8:00 AM

Full Marathon

Sat, 8:00 AM

24 Hour

Sat, 8:00 AM

Half Marathon

Sat, 8:00 AM

12 Hour

Sat, 8:00 PM

Things to know


Frequently asked questions