2013 DreamHack Counter-Strike: Global Offensive Championship
The 2013 DreamHack SteelSeries Counter Strike: Global Offensive Championship or simply DreamHack Winter 2013 was the first "" to be sponsored by Valve. The competition was held during the Winter 2013 DreamHack digital festival at the Elmia Exhibition and Convention Centre in Jönköping, Sweden. Six invitees joined ten qualifiers to form the sixteen team event. Community funding helped to build the US$250,000 prizepool. The tournament had a peak 145,000 concurrent viewers on twitch.tv and the in-game viewing client.
Counter-Strike: Global Offensive Major Championships
A controversial form of the group stage came from ESL One Cologne 2015. Initially, the first three matches started out the same way as the GSL format intended, so that the winner of the group was determined. However, teams were then reassigned afterwards so that the two losers played from different groups and then the decider match would also be teams from different groups.