If you are interested in entering the 9th World Rogaining Championships you should make yourself familiar with the entry criteria. Also visit the 9th World Rogaining Championship 2010 web site. See links below.
The key issue is that anybody may enter at any time after the first of November 2009 however there will be two periods where other rogainers are been offered Prequalification rights expiring on the 15th of December 2009 and Underrepresented Nations/Categories/Classes having 1st priority rights expiring on the 31st of January 2009.
The list of Prequalified is at http://wrc2010.org.nz/resources/pqe_entrants.htm .
It is expected that the field will remain limited to 550 people and team sizes will be limited to 2 or 3 person teams.