5 September 1971 is when  Caesars Palace Grand Prix was established  . The official site of  Caesars Palace Grand Prix is chicagomarathon.com . 18 events were there in  Caesars Palace Grand Prix . 18 from 18 nations were the competitors in  Caesars Palace Grand Prix . It was held in late October or early November . Melbourne (since 1972) were the venues of  Caesars Palace Grand Prix
The sport  Caesars Palace Grand Prix has less than11 contenders  from 18 nations