In order to win one of the five DotaTV tickets for ESL Major Series One, you need to bet on the following three matches and your bets also needs to be correct:
> LGD vs Zenith
> LGD.int vs DK
> LGD/Zenith vs LGD.int/DK
The actual value you bet or win has no impact in this particular contest. A random winner will be drawn from the users who place three successful bets.
Winners of the previous competition can be found here. Also check out the Dota 2 store to buy yourself a ticket.