A data processing system and method is described that allows a betting "house" to maintain a betting pool on a contest by controlling the terms (the betting odds and/or handicaps) for the contestants so that bettors are encouraged to place bets that will bring the betting pool (the "book") into balance....http://www.google.fr/patents/US5573244?utm_source=gb-gplus-shareBrevet US5573244 - System and method for wagering at fixed handicaps and/or odds on a sports event
System and method for wagering at fixed handicaps and/or odds on a sports event