OPAP to facilitate its betting agency, prints a list (coupon) with the offered matches and the odds on the options available for Betting.
This form is the so-called OPAP coupon. It is released twice a week. A new coupon goes out on Mondays and Thursdays, and the vouchers are found online and on-line (Tuesday and Friday).
In order to "read" the coupon, you need to know some things. In each match of the coupon there is a series. Originally the country, the event, the start time of the match and its code.
Then there are accusations. Only acceptable, doubles or triplets. That is, how many matches you have to choose for his voucher to be valid. Where he writes the games to play and his choices. He can choose whether to play a full system, ie to catch all the matches he has to win or a system that allows him to lose a match.
Then there are the odds of the match points and then the special bets. Double Chance, Half Time Result, Goal or No Goal, Goal Set and Over / Under. At another point in the voucher, there are long-standing where you bet on a event that will be completed in the future ...