With no point spread, how to set odds on who will win a one-on-one battle like a boxing match? Boxing lines are traditionally moneylines (much like hockey or baseball) where you pick one fighter to win, but Vegas requires you to risk more to back the favorite while rewarding you with a bigger payout for backing the underdog.
The boxer only has to win the fight to win the wager. The negative value indicates the favorite (-150) and the positive value indicates the underdog (+130). It’s easiest to picture ‘100’ sitting in the middle of these two values.
For example, if you want to bet on a boxer listed at -180, you would wager $180 in order to win $100. On a boxing underdog listed at +150, you would risk $100 and win $150 if the underdog wins. Other forms of boxing odds such as over-under rounds (will a boxing match last longer than 6.5 rounds or be over before then) are often available close to fight night (more on that from OddsShark.com).
Other forms of wagering include boxing props, where Vegas may offer odds on who will win the first round or whether the fight will end in a knockout, decision, TKO or disqualification.