Classes and Participation

Competition Classes and Participation may be found in the IOF Rules for Trail Orienteering Events, sections 5 and 6. There is a pending change, which is described in the IOF document titled “Junior Competition in Trail orienteering”. An excerpt from this document is shown here:

IOF_TrailO_rules.jpg

Classes, Eligibility and Teams

This summary table is the organizers' expectation based on IOF documents. If there is any discrepancy between this table and the IOF rules, the IOF rules will apply.

Class Abbreviation Open P Junior
Class description Any competitor Physically challenged, permanent disability Junior 20 years old and younger at December 31, 2027
Documentation required for Class eligibility Athlete license Eligibility certificate and Athlete license Passport or birth certificate and Athlete license
Documentation required for Team eligibility Passport Passport Passport
PreO maximum Team size 4 4 4
TempO maximum Team size 4 4 4
Relay maximum Team size per federation 3 3 3
Plus Current World Champion 1 1 1
Plus Current Regional Champion** 1 1 1
Plus 8/8/27 TrailO world ranking list top 15, up to 2 per Federation 2 2 2

** Regional Championship must have been held after 31 August, 2025