Most sportsbooks will offer money line bets for each quarter of a particular game. Those offerings may include quarter wagering on odds that are set before the game begins.
For example, bettors can often place bets on which team will win just a particular quarter of the match.
However, sportsbooks will also offer money line wagering on upcoming quarters after the game has started, or at halftime.
For example, a sportsbook may offer a money line proposition on the second quarter only immediately after the first quarter is completed.
Or for example, a sportsbook may offer money lines on both the third and fourth quarters individually during halftime. When placing a bet on a quarter money line, the team the bettor wagers on needs only to win that given quarter.
The offering is treated as a single game and scored as such. The only difference being the fourth quarter, in which should the game be tied at the end of regulation, the overtime period(s) scoring is added to the teams’ overall scoring in for the fourth quarter.