When a bettor finds two different lines for the same game, they can place one bet on the favorite and another on the underdog. For example, if one sportsbook offers a line of -3 for Team A and another offers +4 for Team B, the bettor can place a bet on both outcomes. If the final score falls between the two spreads, the bettor wins both bets, resulting in a profit.
Middle Example
For example, a bettor places $100 on Team A at -3 and $100 on Team B at +4. If the game ends with a score of 21-20 in favor of Team A, the bettor wins both bets, as Team A covers the -3 spread and Team B covers the +4 spread.