2021 World Series of Poker set to start Sept. 30 at the Rio All-Suite Hotel & Casino in Las Vegas | CBS Sports Headlines 2021 World Series of Poker set to start Sept. 30 at the Rio All-Suite Hotel & Casino in Las Vegas The richest poker event in the … Continue reading 2021 World Series of Poker set to start Sept. 30 at the Rio All-Suite Hotel & Casino in Las Vegas