I was looking for a tournament to participate in and did a quick Google search and wow. I was blown away at the number of bracket contests out there.
Here are the World Cup Bracket Contest that caught my attention:
The Big Prize World Cup Bracket with a Catch
The one with the biggest prize is the $160-$175 million contest at http://www.megajusto.com/en/index.php. The prize money is an estimate as the prize is actually 280,000 bitcoins and the catch is that a minimum of 99,000,000 tickets will have to be registered before the start of the World Cup or the contest will not be held. Deposits made would be refunded upon request in that event.
The $10,000 Betonline World Cup BracketThis is one is from a known sportsbook that often have large contests and have a good reputation to boot.
Click here to Register for it
The 1Vice $2,000 World Cup Bracket ContestThis is the first time that 1vice, a medium size book has started it own bracket contest instead of sponsoring one. This world cup contest is a one person wins it all contest where you just need to make a $250 deposit(your deposit is yours to play wager with) into your account and you are entered in the contest. You can also purchase additional contest entries for $25.
Click Here to Register for it