If the OP is truly talking about a venue at Disney's Wide World of Sports, then the only way to get there via Disney Transport is a bus from MGM. This would require a bus from CBR to MGM, then changing buses at MGM to get to WWOS, and then the same for the way back.
A taxi would be a much quicker way for what someone on a different thread pointed out is a very short ride (CBR to WWOS). Waiting for 2 separate buses to get maybe a mile or 2 (???) would be an awful waste of time and it might be worth a few bucks to save maybe 60-90 minutes.