Abstract: This invention provides a competition management system 10 to administer promotional competitions. The system is configured to allow contestants 24 to participate in competing for rewards in the competitions. The system 10 comprises a host application server 12 programmed to receive, store and process competition data pertaining to multiple competitions each administered by a competition promoter 14 in accordance with competition rules. The system is configured to issue invitations to the client devices 26 of multiple social media friends of a contestant 24 to join the contestant 24 in the competition. The system 10 creates an association between the contestant 24 and her social media friends and is programmed to share rewards awarded in the competition between the contestant and social media friends associated with the contestant in accordance with predetermined reward sharing parameters.