We received some details on the Circle of Balance 2012. 

Format: There will be 16 riders this year (invitation only) and the format will be head-to-head knock-out style.
 The event will have some new and developed format with fresh elements so you can look forward to that...

 Prize Money (in $US):
 1st: $5000
 2nd: $3000
 3rd: $2000
 4th: $1000
 
 If a rider loses in the first round: $500

 If they make it to the second round: $750

 Total prize purse: $18,000