First, let's see what Over 2.5 means (commonly called over two and a half): by playing this type of odds we are betting on the number of goals that are scored by both teams in the match, the wording Over 2.5 means that the assigned goals are higher (above) than 2,5. Obviously it is impossible to score two and a half goals in a game, so the minimum goal threshold to be reached to make this game successful is 3. In summary, to win a bet with Over 2.5, it is necessary that in the match 3 or 3 are scored more goals, regardless of which of the two teams score them.