“We wanted to create immersive spaces that could rival a live experience at the stadium,” said Dwayne MacEwen, principal and creative director of DMAC Architecture. Chicago-based DMAC Architecture designed the 4,840-square-foot sports wagering bar in the casino’s former Cube Lounge and anchoring one corner of the gaming floor with an exterior terrace. Just in time for March Madness, the BetRivers Sportsbook at Rivers Casino Des Plaines in Des Plaines, Illinois officially opened today, with approval by the Illinois Gaming Board, and will now accept legal sports betting.