According to their website, SAGRA organises races and covers the cost by organising media exposure and branding identification. SAGRA is known for the Hot Heels events that has been running annually for the past 7 years.
These guys seem to be doing a lot to promote longboarding in South Africa. Well done guys and keep up the good work.
The 2011 race schedule can be found here. Join their page on Facebook to keep up to date with their events.