WEBSep 12, 2024 · MLB odds courtesy of BetMGM Sportsbook. Odds updated Wednesday at 9:17 p.m. ET. For a full list of sports betting odds, access USA TODAY Sports Betting Scores Odds Hub. Favorite: Yankees (-167, bet $167 to win $100) Underdog: Red Sox (+141, bet $100 to win $141) Over/under: 9.