Dota 2 (International 7) The biggest tournament in all gaming history

With at least 1 month remaining this tournament already reach 20 millons dollars in 64 days , starting only with 1.6 millons from valve and incresead with community colaborations , thats a lot of money almost 10 million for the winner ,and even this championship took a place for betting in bet365

this is one point , someone already know another gaming with that amount of money? and with this one dota 2 reach the largest prize pools in all gaming history