Supremacy Spread Bets are spread betting markets predicting a team's dominance over their opposition.

If you are interested in sports spreadbetting we recommend you research financial spread betting. Our recommended firm is IGIndex. Open an account here and take their free course on learning how to spread bet.  Read the risk warnings on site.

The spread betting firm will predict how many more goals any given team will score against their opponents.

Example:
Extrabet traders might make Arsenal favourites to beat Tottenham by 0.1-0.3 goals. Therefore, if you think Arsenal will win you might bet high at 0.3 for the stake of your choice, in this case, £50 a goal.

If Arsenal were to win the game 4-1, their winning margin (make-up) would be 3 goals.
Had you placed your spread bet high at 0.3 you would have made 2.7 times your stake.
(3 - 0.3) x your stake = 2.7 x £50 = £135

But if Tottenham had won 1-0, the same bet would have lost you 1.3 times your stake.
(0.3 - -1) x your stake = 1.3 x £50 = -£65