In addition to checking out your own table tennis (Ping-Pong) rating and those of your friends, be sure to check out the ratings and rankings of the players on the International Table Tennis Federation World Tour, as well as the players in many professional, collegiate, and club leagues.
For more information on Ratings Central, including how your club, league, or tournament can join, see Info. And, be sure to take a look at what people are saying about Ratings Central.
If you run tournaments, take a look at Zermelo. Zermelo can help you run your tournament and submit it to Ratings Central or USATT, or can be used without using Ratings Central.