The 2018 World Series will get underway at Fenway Park on Tuesday night, and the Boston Red Sox have been listed as the betting favorites ahead of the series opener at sportsbooks. The Red Sox are pegged as -165 World Series odds favorites (wager $165 to win $100) at sportsbooks monitored by OddsShark.com, with the Dodgers the +135 underdogs (wager $100 to win $135) for the best-of-seven set.