A gaming group in Brazil has started up a Summoner Wars cup. They have a facebook page located here.
They ran an event earlier this year in January, and had 16 players attend.
A summary of the event, along with some pictures and video can be found here.
The next event is coming up on April 6th at a local shopping mall in Recife--PE
Further information including guidelines and rules for the tournament can be found here, and a form for online subscriptions can be found here. (Note: All information found on the links is in Portegese)
Thanks to Katabrok for helping to make this happen and bringing it to our attention, we hope you have a good turnout and a lot of fun!