What is Over/Under 2.5 in Soccer Betting? Explaining O/U 2.5 and Effective Betting Strategies Over/Under 2.5 is considered a relatively straightforward goal line for everyone to play in soccer betting. However, not every bettor is confident in wagering on this line because the total number of goals in the bet is always an even number. So, how can one bet effectively on this? What is Over/Under...