!pitching against the 15u east cobb astros

Hello everyone this weekend is the Triple Crown Last Chance Face Off at the East Cobb Baseball Complex and i have the opportunity to pitch against arguably the best 15/16u team in the nation, the East Cobb Astros 15u, I am starting and any advice would be great i throw low to mid 80s with a curveball and very rarely a change-up but i do throw one once again please anyone that has any information on them or has any advice id very greatly appreciate it thank you very much