There are 16 teams arranged into four pools.
The teams in each group play each other once, with the top two progressing to the quarter-finals. All pool matches are completed on the first day of the tournament, day eight.
If teams are level on points during the pool stage, rankings will be decided by the result of the match between the two equal teams. If the match is drawn, points difference will be used.
The third and fourth placed teams in each pool progress to the Bowl competition, and the quarter-final losers take part in the Plate competition. No medals are awarded to the winners of those events.
Pool A:
New Zealand
Scotland
Canada
Guyana
Pool B:
South Africa
Wales
Tonga
India
Pool C:
Samoa
Kenya
Malaysia
Papua New Guinea
Pool D:
England
Australia
Sri Lanka
Uganda
Some form guide and an introduction to the Commonwealth 7s format:
http://news.bbc.co.uk/sport1/hi/commonwealth_games/delhi_2010/9031959.stm