You are likely to find the best odds with underdogs in sports events. Most online sportsbooks provide odds for underdogs that are far superior to more likely winners. When you place a smaller bet on the underdog, and it wins, you can earn a lot more than wagering big on a firm favourite. Underdog teams tend not to win that often, so it is more prudent to look for better value odds, in particular, where a team is not a massive underdog or rank outsider.