This was an invitational capping a year-long season of Vintage (and one Old School) events, where each winner earned a seat at the invitational itself.
The announcement for the tournament can be found here.
The winner's report can be found here.

If you're in the Austin area, the next event will be in January some time, and season two will start up in February. That website has the info. There's also this facebook group https://www.facebook.com/groups/RomancingTheStones/