Betting System Calculator

A system coupon automatically generates all possible combinations of your selected matches. For example, a 3-way system coupon with 5 matches includes all combinations of 3 from 5 matches (10 columns).

The combination formula is C(n,r) = n! / (r! x (n-r)!). Here n is the total number of matches and r is the system size. For example, 7 matches with a 3-way system = 7! / (3! x 4!) = 35 combinations.

A system coupon gives you a chance to win even if some matches in the coupon are wrong. For example, in a 5-way system coupon, if 5 out of 7 matches are correct, you win.