Welcome to Vienna
The Vienna O Challenge launched in 2019 with the idea of creating an international event that is open to everyone, held in challenging areas, and fun to be part of. Thank you to everyone who has participated in the first five editions. In 2025, the event welcomed 400 participants from more than 20 countries. See you at the next Vienna O Challenge!
Erik Nilsson Simkovics
Event Director
Volunteer & be part of the event team!
Do you want to be part of our team and help create an international sports event? Join the team of volunteers :)
Partners
Special thanks to our partners and supporters - making Vienna O Challenge a better event 😊
