In 13 days · Sat, Nov 14, 2026
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Saturday, November 14th, 2026
618 Confluence Way SE, Calgary AB
5K
20–38°F · low rain risk
See last 10 years
On this date: rain 0 of the last 10 years
2025
28–36°F
dry
2024
32–46°F
dry
2023
24–41°F
dry
2022
24–36°F
dry
2021
29–46°F
dry
2020
15–33°F
dry
2019
26–40°F
dry
2018
32–45°F
dry
2017
7–29°F
dry
2016
34–51°F
dry
Best months to race in Alberta →
Race-day forecast · Saturday, Nov 14
Cloudy · 35–51°F
Saturday, Nov 14starts near 35°F · 6% chance of rain · wind up to 11 mph
About this race
We are both Calgary's - and Canada's - only official, dedicated Onesie Run!
Onesie Run is scheduled for Saturday, November 14th, 2026.
Nice and cool fall weather so that you don't overheat in your onesie. We carefully consider weather elements for all events!
The 1km and 5km routes are great for all fitness levels. Participants may choose to walk, jog or run the event. Youth and children (18 and under) tickets are budget friendly.
All participants receive a BIB, finisher MEDAL and a SWAG BAG! There will also be a RAFFLE - automatically included for all participants - for various prizes at the end! Previous giveaways have included gift cards to Great White Car Wash, Spolumbo's Deli, Sport Check and Phil & Sebastian Coffee. Other raffle prizes have included yoga mats, stress balls, sports pickle juice, and much more!
Fastest 1st, 2nd and 3rd place rankings for the 1km (kids) and 5km (all ages) receive special prizes and mentions.
Top 3x fundraisers receive special mentions, photo with event organizers, and surprise gifts.
Stick around once you cross the finish line! Cozy wood burning fire pits to warm your fingers, vendors with fun tents (and free stuff!), DJ to pump up the vibes, food truck for your cravings, and our charity partner onsite!
Onesie Run raises both public awareness and funds for the Calgary Humane Society. If you love animals, register for this amazing event. Throw on your onesie, stretch your legs and make a positive impact for the Humane Society!
Fur-friends VERY welcome - please leash responsibly!
See you on the big day!
Course map
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