Onesie Run 2025

The Onesie Run is Calgary's—and Canada's—only official, dedicated Onesie Run. Scheduled for Saturday, November 15, 2025, the event features 1 km and 5 km routes suitable for all fitness levels. Participants are encouraged to wear their coziest onesies while walking, jogging, or running. The event supports the Calgary Humane Society, raising both public awareness and funds for animal welfare.

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All participants receive a medallion and ribbon, with special prizes awarded to the fastest runners in both categories. Fur-friends are very welcome; please leash responsibly.

• Road surface
• Routes are 1 km and 5 km options
• Suitable for walking, jogging, or running
• Held in mid-November with typically cool temperatures and low humidity

• 1 km and 5 km routes suitable for all fitness levels
• Medallion and ribbon for all participants
• Special prizes for fastest 1st, 2nd, and 3rd place finishers in kids and all ages categories
• Family-friendly with budget-friendly youth tickets
• Fur-friends welcome, leash responsibly