The international 2015 "who will emerge victorious? witness the world's top teams battle at the international." prize pool information. The international (ti) is an annual dota 2 esports tournament the event and contribute to the prize pool; which reached a $2.8 million prize pool with $1. As is tradition for the dota 2 international, sales of battle passes have been contributing to an ever-rising prize pool. that pool just overtook last year’s total.