In bandy, teams skate on ice and send a ball into a goal. Suppose the visitors lead 3-1 at half-time and lose 5-4. The hosts scored four times after the interval and conceded once, so their second-half score was 4-1.
A 5-4 win has a one-goal margin. The home side needed a margin of at least two to cover -1.5.
Use the score at the interval. With the visitors ahead 3-1 at that point, an eventual comeback has no effect on the half-time pick.
More sports: Ice Hockey, Floorball.