 Starting in 2015 , Valve began sponsoring smaller , but seasonally held tournaments with a fixed $ 3 million prize pool , known as the Dota Major Championships . The format for the tournaments are based on the series of the same name that Valve also sponsors for their first @-@ person shooter game , Counter @-@ Strike : Global Offensive . The first of which , hosted and produced by <unk> , was the Frankfurt Major held from November 13 – 21 , 2015 , at the <unk> Frankfurt in Frankfurt , Germany , and was won by OG . The next Major was hosted and produced by Perfect World , and was held at the Mercedes @-@ Benz Arena in Shanghai from March 2 – 6 , 2016 , and was won by Team Secret . The third and final Major of the 2015 – 2016 season was hosted and produced by <unk> , and was held at the Mall of Asia Arena in Manila from June 7 – 12 , 2016 . The tournament was won by OG , becoming the first team to repeat as champions of a Dota 2 Major . 
