A system for managing bets comprises a memory and a processor. The memory stores information associated with a field of participants for an event, each participant associated with particular odds for the event. The processor receives a bet that a lead participant from the field of participants will finish in a particular subset of finishing positions in the event, wherein the bet is associated with customized odds. The processor further select one or more additional participants from the field of participants to add to the bet such that the odds associated with the lead participant combined with the odds associated with the one or more selected additional participants at least approximates the customized odds for the bet.