This is from a 1979 Bambino trade catalog. Horse Racing would have allowed you to choose the number of persons betting, and then place your bets. After pressing start, the computer would simulate a race and would then 'pay-out' the winners appropriately. The computer was programmed for over 100 million possible winning combinations! I'm not certain this was ever made, I have never actually seen one. If anyone has one (or ever really saw it), please let me know.