Home» House Rules. William Hill Race & Sports Book. Click Here for William Hill House Rules FOOTBALL AND BASKETBALL PARLAY. 2, TEAMS, 13, /, 5. Missing: predictions. Learn about Nevada sports books and using mobile sports betting apps in Nevada. However, today you can wager on parlays in Delaware today. College football and basketball are the major sports offered by Nevada sportsbooks. . Most William Hill sportsbooks are small with a couple of betting windows and TVs. 5 Nevada sports betting apps: the who and the where Ti Sports App ; Westgate – Westgate Superbook App ; William Hill – William Hill App Between all Nevada sports books, there will be nearly proposition bets in addition to the . There are 32 college basketball games to wager on Thursday and Friday.