In a dominant day for teams at the top of the standings, no team was more dominant than Cloud9, who stayed best as Week 4 of the North American-based League of Legends Champion Series’ Summertime Split pertained to an end Sunday.

The top four groups in the standings– Cloud9 (8-0), Group Liquid (6-2), Team SoloMid (6-2) and Evil Geniuses (5-3)– all won Sunday, with Cloud9 and TSM winning on blue, and Liquid and EG winning on red.

The 10 teams in the LCS Summer season Split are playing a double round robin of best-of-one matches through Aug. 9. The top 8 teams will advance to the double-elimination playoffs, scheduled for Aug. 13-Sept. 6.

The first- and second-place groups will receive byes into the second round of the winners bracket. The third- through sixth-place teams will open in the preliminary of the winners bracket, and the seventh- and eighth-place teams will begin in the first round of the losers bracket. All playoff matches will be best-of-five.

The 2 playoff finalists will make spots in the League of Legends World Championship, set up to be played in China at a date to be revealed. The third-place team will advance to the Worlds play-in event.

Playing the only team yet to pick up a win in the event, Cloud9 set the tone from the get-go, choosing up 21 kills to their opponent’s 10 in beating Dignitas (0-8) in 33 minutes. Denmark’s Jesper “Zven” Svenningsen led Cloud9 with a 9/2/6 kill-death-assist ratio as Ezreal. Johnson “Johnsun” Nguyen of Canada posted a 3/5/5 as Aphelios for Dignitas.

In the next match, Liquid required 45 minutes to dispose of FlyQuest (5-3) in the day’s premier matchup. Jung “Impact” Eon-yeong of South Korea had a 5/6/4 KDA as Kennen for Liquid, while colleague and compatriot Jo “CoreJJ” Yong-in picked up 11 helps as Nautilus. German Tristan “PowerOfEvil” Schrage posted a 6/6/7 as Syndra for FlyQuest.

TSM required 47 minutes to get by Counter Reasoning Gaming (4-4), avoiding falling into a tie with CLG in the procedure. Soren “Bjergsen” Bjerg of Denmark led TSM with a 9/2/6 KDA as Azir. American Eugene “Pobelter” Park posted a 7/4/5 as Corki in a losing effort.

In the day’s last match, EG topped Immortals (1-7) in 50 minutes. South Korean Bachelor’s Degrees “Bang” Jun-sik (4/1/6 as Aphelios) and China’s Colin “Kumo” Zhao (4/1/5 as Volibear) led EG, while Kieran “Allorim” Logue of the United States published a 4/3/6 as Urgot for Immortals.

Week 5 begins Friday with a set of matches. Cloud9 plays their next match Saturday versus TSM.

League of Legends Champion Series Summer Split standings: