We are both Calgary's - and Canada's - only official, dedicated Onesie Run!
Our next & upcoming Onesie Run is scheduled for Saturday, November 15th, 2025.
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 medallion and ribbon.
Fastest 1st, 2nd and 3rd place rankings for the 1km (kids) and 5km (all ages) receive special prizes and mentions.
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!
Each registrant is automatically entered into giveaway draws for various awesome prizes. Examples of previous giveaways include $50-$100 Sport Chek, Spolumbo's, etc. Giftcards and prizes are distributed once the 5km route is completed.
Registration fees
Prices are inclusive of mandatory charges, items, and fees
1k Route
Price changes in 2 days 1 hour-
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$23.56Feb 26 – Mar 31
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Register for 1k Route$28.93Now registering Apr 1 – May 31
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$31.61Jun 1 – Jul 31
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$36.97Aug 1 – Sept 30
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$39.12Oct 1 – Oct 31
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$42.34Nov 1 – Nov 6
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$44.49Nov 7 – Nov 14
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5k Route
Price changes in 2 days 1 hour-
-
$23.56Feb 26 – Mar 31
-
Register for 5k Route$28.93Now registering Apr 1 – May 31
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$31.61Jun 1 – Jul 31
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$36.97Aug 1 – Sept 30
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$39.12Oct 1 – Oct 31
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$42.34Nov 1 – Nov 6
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$44.49Nov 7 – Nov 14
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1km Kids
Price changes in 2 months 2 days-
Unique for kids 18 and under.
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Register for 1km Kids$17.65Now registering Feb 26 – Jul 31
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$23.29Aug 1 – Sept 30
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$27.31Oct 1 – Oct 31
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$30.26Nov 1 – Nov 6
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$33.54Nov 7 – Nov 14
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5km Kids
Price changes in 2 months 2 days-
Unique for kids 18 and under.
-
Register for 5km Kids$17.65Now registering Feb 26 – Jul 31
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$23.29Aug 1 – Sept 30
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$27.31Oct 1 – Oct 31
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$30.26Nov 1 – Nov 6
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$33.54Nov 7 – Nov 14
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Shop at RunningRoom.com
Contact information
- Event contact
- Rob Aronson
- onesierun@gmail.com
- Phone
- 403-305-5630
