The Underdog's odds are based on what the casino has for its line. .. Sports books list each NFL team with corresponding odds to win the Super Bowl. . Betting a horse "across the board " is really three separate bets: one to win, one to place. NFL Odds - Live NFL Betting Lines. September 21, - Compare and find the best NFL spreads and lines anywhere on the internet!. The Super Bowl is the absolute pinnacle of sports betting. Everyone from seasoned sharps in Las Vegas to that weird guy at work who always.