Paul,

Quite a few people from the club will be doing this, judging by today’s training ride on the course. For some, it will be a race, for others it’ll be more of a participation ride.
As it is a qualifying event for the World Masters champs in Denmark, specific 5 or 10 year age groups may start at different times, with men and women also separated. Hopefully they’ll provide more information on age groups and start times on the UWCT Perth website soon.