1 ultra event in Adjala–Tosorontio, Ontario

From big races to Saturday morning group runs—find ultra events and connect with the local endurance sports community.

• Rainbow Trail Run 2026 [raceroster.com]
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  Sat, Jun 13, 2026 at 7:00 AM

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  Presented by:

  Saturday, June 13

  Earl Rowe Provincial Park

  Alliston, Ontario

  5th Annual Rainbow Trail Run

  The Rainbow Trail Run consists of a 12K loop (approximate) around Earl Rowe Provincial Park....

  Presented by:

  Saturday, June 13

  Earl Rowe Provincial Park

  Alliston, Ontario

  5th Annual Rainbow Trail Run

  The Rainbow Trail Run consists of a 12K loop (approximate) around Earl Rowe Provincial Park.

  It's mostly double wide, some grass, some dirt and a tiny bit of pavement (when crossing over park roads) and bridge crossings over Earl Rowe Lake. It's a relatively flat course with one short climb up to the Lookout (photo opp for sure!). Awesome course for those new to trail running and wanting to challenge themselves on their first ULTRA run.

  6k 12k 24k 50k 62k Road Run Trail Ultra Virtual

  4990 Concession Road 7, Adjala–Tosorontio, Ontario, L9R 0E9, Canada
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