The Vortex Race in Lausanne, Switzerland, offers a unique 3K circular course inside a former Olympic building. Runners climb eight stories on a winding ramp, starting outside and finishing at the top. The ramp has a gentle incline with no stairs, allowing runners to gradually ascend.

The event, which sold out all 2,500 entries, includes a 3K race, a 7K option, and an 'Any Pace' category. Teams can compete for rent reductions, and prizes are awarded to top individual and team finishers. Entry fees are CHF 12 for the 3K and CHF 16 for the 7K. Read more culture coverage.

Organized by volunteers and former students, the race promotes inclusivity through partnerships with PAIRES and PluSport. The Vortex Race offers free entries for runners with disabilities and their guides. The 2027 edition date is yet to be announced. Related: New York City Marathon Pace Calculator: Tailored Mile-by-Mile Strategy.

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