Beau Rivage opens multi-million dollar sports book expansion BILOXI, Miss. (WLOX) — As the one year anniversary of sports betting in Mississippi approaches, the Beau Rivage is taking the sports book business to another level. “We can show 100 games,” said Beau Rivage Sports Book Manager Will Hall. The multi-million dollar expansion and renovation of the 7,000 sq. ft. sports book area features 100 HD screens and a 14 ft video wall. But watching sports isn’t where the experience stops.