The 3-Day option is perfect for those who want to experience the feel of O-Ringen, but cannot participate in all five stages.
Challenge Classes: In the Challenge Classes you can choose the length and difficulty of your courses. The classes are coupled with specific courses, and you can compete with everyone on that course regardless of age and gender. Afterwards, you can sort the results list to compare yourself against specific competitors. You can also tag your friends, clubmates, or colleagues, and easily create an internal competition with just those runners you have selected.