Niagara's 12 Mile Creek Trail Half Marathon & 7k Cancer Run 2025

This page is kept as a past race archive for the Jun 7, 2025 edition in St. Catharines, Ontario. Use the links below to find upcoming races in the same area or distance category. You can also browse the 2025 race calendar.

The 36th annual Niagara's 12 Mile Creek Trail Half Marathon & 7k Cancer Run takes place on June 7, 2025, in St. Catharines, Ontario. The half marathon course follows a historic route along the first Welland Canal featuring the scenic 12 Mile Creek Trail (also known as the Merritt Trail), including a challenging ascent up Hydro Hill on the Niagara Escarpment. The 7 km run offers a shorter but demanding trail experience. Proceeds support the Niagara Rankin Cancer Run.

* Half marathon features out-and-back and looped sections with rolling hills * Approximately 80% hard-packed gravel trail surface with some paved sections * Six electrolyte and water stations along the course * Notable Hydro Hill ascent on the Niagara Escarpment * Trail terrain with mix of gravel and paved paths

• Supports Niagara Rankin Cancer Run charity
• Historic route along the first Welland Canal
• Scenic 12 Mile Creek Trail (Merritt Trail)
• Challenging Hydro Hill climb
• Multiple race distances: Half Marathon and 7 km trail run
• Limited to 275 total participants