Congratulations, that's pretty cool!
Trux: I'm not aware of any other attempts, and I think comparison is a bit vague since there is no specific rules. Or at least in our case, the rules are very relaxed. The idea has been that "anyone can contribute", so it's more of a event to gather all freedivers into once place with a good excuse. Some swam several km, others 15m (young child) - basically the only rule was that every meter must be covered under water and only one diver a the time moves. By the way it is a pretty surreal feeling spending 24h in a pool - I highly recommend it! It's not that hard to organize either. You need a pool, you need people, and then you dive a lot
(of course official wr attempt is a bit more complicated)
Some statistics available here:
Google Docs - Sunken Logs 24H 2007 Tulokset
21.89 with bifins is pretty impressive - I wonder is there a world record in bifins sprint and what would it be? (I'm sure finswimmers can go faster, but that's pretty good). Was this with dolphin kicks or normal bi-fin kicks?
