Steeltown Canicross, a Hamilton-based group, has grown from a few teams to over 260 members. They collaborate with Hamilton Animal Services, offering shelter dogs weekly runs. Over 200 dogs have participated in the past two years.

The group's annual race, Murphy's Mission, honors Murphy, a dog rescued from abandonment. His story inspired the event, which includes 5K and 10K canicross races. Funds raised support Hamilton Animal Services. Read more culture coverage.

Canicross involves running with a dog using a harness and bungee line. The sport began as sled dog training and has become a recreational activity in Canada. Related: Keely Hodgkinson Dominates Athlos London with Catwoman-Inspired Suit.

This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.