There is disclosed an electronic calculator capable of implementing a handicap formula for selecting and computing the probability of success of an entry in a racing contest based on past performance and earnings. The calculator can be used as an ordinary calculator or by means of a selector circuit,...http://www.google.es/patents/US4031376?utm_source=gb-gplus-sharePatente US4031376 - Calculating method and apparatus for handicapping thoroughbred races and the like
Calculating method and apparatus for handicapping thoroughbred races and the ...