MS kids can compete in SCYWA Upper/Lower state and SCYWA State Championship. In addition, they have their own MS championship tourney on Feb 8 at Irmo. Here's a link to the registration page for SCYWA's remaining tourneys:
http://tw01.trackwrestling.com/tw/Login.jsp?TIM=1385993107577&twSessionId=undsmjvpjsmhwsz&tName=&state=41&sDate=&eDate=&lastName=&firstName=&teamName=&sfvString=&city=&gbId=