16-31 JULY 2011 World Championships in Shanghai, China
18-22 APRIL 2012 Olympic qualifying tournament in London
Synchronised swimming is a discipline restricted to women at the Olympic Games, who compete for medals in the team and duet events.
For the team event, the eight teams which contest the Olympic final qualify via their respective continental championships - which supply five teams - and an Olympic qualifier, in London in April 2012, to find the remaining three.
Each of the teams reaching the Olympic final also earns a place for two athletes from their country in the duet event, alongside the duets who placed highest at each of the five continental championships (and who have not otherwise qualified).
The remaining places are allocated by going down the results of the same Olympic qualifying tournament, in April 2012, assigning places to the top-ranked duets until 24 pairs have been selected.
Allison and Randall at the 2010 Commonwealth Games
How are GB competitors doing?
Olivia Allison and Jenna Randall, 11th in the duet at the World Championships in Rome two years ago, are Britain's best synchro hope.
GB has the luxury of one host berth in both the duet and team competitions, so qualification is unlikely to be an issue for Allison and Randall, whose focus is now on ensuring they remain Britain's top pairing.
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