zSpreads is a brand new way of playing the spreads in sports games. Instead of betting win/lose by a spread, you actually predict final spreads. You do so on a collection of games, and the next day you see how you did compared to all other players, members of groups you create or join, and players you follow.
Play any day and you participate in that day's 1-day challenge, the 3-days challenge for that day and the following 2 days, and the 7-days challenge for the week beginning that day. Plus you automatically participate in season-team-challenges for all teams that are in games in which you predict the spread.