12 were the number of teams who competed in  Caesars Palace Grand Prix . The sport has the official site www.hardrock100.com . Stade Roland Garros (since 1928) were the venues of  Caesars Palace Grand Prix . 37 from 31 nations competed in  Caesars Palace Grand Prix . 6 events were there in  Caesars Palace Grand Prix . 1905; 114 years ago (1905) is when  Caesars Palace Grand Prix was established  . It was held in 23 February
The sport event never happened before 1921