The 4th quarter in basketball betting doesn’t include a probable overtime, so all markets are settled after 10 or 12 minutes, depending on the league. Suppose you place an Over bet on Team A to score more than 22,5 points in the 4th quarter at 1.90 odds. The game against Team B goes to overtime while Team A scores 21 points during the final period; your wager would then be a loser.