The O-Ringen (previously called the “Swedish 5 days”) is an orienteering competition that takes place annually in different areas of Sweden.

This race attracts significant media coverage in Sweden and winning O-Ringen is often considered second only to the World Championships in prestige.

The O-Ringen was started in 1965 in Denmark, Skåne and Blekinge by elite Swedish national team runners Peo Bengtsson and Sivar Nordström.

After being publicised in Skogssport [sv] and Idrottsbladet, 156 participants attended the first event, during which guest of honour Torsten Tegnér was forced to help with organisation due to a lack of volunteers.

The Sports section is more concerned with the physical side with training camps of different sorts, including a week for juniors before the O-Ringen.