PURPOSE: To prevent the congestion of a reception window and to make it unnecessary for a visitor to leave his seat by inputting a bet combination and an amount from an operating station with the use of a prepaid card by means of the visitor and settling the amount after the completion of a race by means of a central processing unit.

CONSTITUTION: A central processing unit 1 operates race information, refund determination information, etc., and a reception terminal 2 and an operating station 13 are connected to the unit 1. When the visitor prepays the amount at the reception window, the prepaid card is issued from the terminal 2. Further when the visitor inserts the card in the operating station 13, and inputs the bet combination and the betting amount, the refund amount is calculated after the completion of the race, the settled amount is displayed, and at the same time the information is written on the card, and the amount is settled at the reception window after the completion of the race. Thus the congestion of the reception window is eased, and it is made unnecessary for the visitor to leave his seat.