Biles Reigns Supreme at Gymnastics Classic 

Biles wins Gymnastics Classic with top score. 

First time 3 Olympic champions compete together. 

Lee & Chiles also impress with strong performances. 

Douglas struggles and withdraws from competition 

Injury forces McClain to leave meet early. 

Biles looks strong in bid for Paris Olympics team. 

Next key meet: U.S. Championships in Fort Worth. 

National Teams formed for Olympic Trials in June.