Cloud9 have advanced to the semifinals at the ESL Pro League Season 4 LAN Finals, after steamrolling their way through OpTic Gaming 2-0 in a dominant Round of 6 victory, eliminating their fellow North American squad.

Cloud9 were the favorites headed into this matchup, and they did not disappoint. While the first game on Dust2 was both C9's pick and the closer map, OpTic's six round wins as CT in the second half only delayed their eventual defeat 16-12.

OpTic selected Cobble as the second map, but were utterly crushed 16-2 despite winning the first pistol round. Once Cloud9 got on a roll, it was all over for OpTic.

With this win, Cloud9 move on to face mousesports, who have been seeded directly into the Semifinal round after taking first place in Group A. That match is scheduled for Oct. 30 at 1 p.m. EST.

Annabelle "Abelle" Fischer is a writer for theScore esports with a love for Dota 2, birds and cheese. You can follow her on Twitter.