http://www.htta.net/olympic-table-tennis-rules/
How do you try out for the US 2012 Olympic team in Table Tennis?
I’m wondering how to get started on joining the Table Tennis team, because that’s how I roll. I live in NM, and am 17 right now so I’ll be 19 when the Olympics rolls around. If you help me, I’ll give you a shoutout when I rule the ping pong world. 
Contact the US Table Tennis Association.
Here is a link.
http://www.usatt.org/index.shtml
Good Luck.
2008 Table Tennis Olympics Oh Sang Eun VS Ma Lin 吴尚垠 VS 马林