From the beginning of May through to the end of August 2008, the most comprehensive online poker rating system is back, only at Betfair Poker... and even better, there’s tons of cash and prizes to be won.

STAX#RATINGS are very much like 'Poker IQs'.They are designed to reflect a players overall performance at the tables and will give an idea of how their play might stand up in the biggest poker arenas such as the World Series of Poker Europe.

The highest STAX#RATING possible is 100, where an individual has proved themselves to be a superb poker player, with a superb record, in a range of disciplines consistently over a period of time.

Every month from May to August 08, the best STAX#RATING players will share in a whopping $20,000 prize pool. Check out www.betfair.com for the full list of prizes

This is the ultimate poker challenge. Do you have what it takes to be acknowledged as a true all-around great poker player?