It's split between the winning side, and the match ends in a draw. For example, Team A (at home) is taking on Team B, and you probably think that Team A could win the game. On the other hand, the match would end up in a draw. In regular betting, you would be betting on three outcomes.
Using Statistics to Predict Draws\n\n The over/under 2.5 Goals Market: This market predicts whether the total number of goals in a match will be over or under 2.5 goals. If you think that a match is likely to be a draw, then you should look for matches that have low odds on under 2.5 goals.