Calgary's One Track Mind event, a three-hour running relay and dance party, sold out in two days. Over 250 runners are expected to participate. Teams run laps of the Calgary Olympic Oval's track, with a live DJ and social activities.

Organizer Jeff Shikaze created the event to raise funds for Alzheimer's research. Inspired by other running events, he aimed to create a unique Calgary experience. Last year's event raised over $5,000, and organizers hope to double that this year. Read more culture coverage.

The event features an aid station, improved DJ setup, and better lighting. More than 10 Calgary run crews will attend, supported by local running businesses. Despite the competitive spirit, Shikaze avoids prizes to keep the focus on fun. Related: NYC Marathon Charity Fundraising Surpasses $100 Million.

This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.