Cloud9 stayed undefeated at the League Championship Series Summer Split, blanking 100 Thieves 2-0 on Sunday to slide ahead of Team Liquid atop the standings in group play.

At 4-0, Cloud9 join Liquid as the only remaining unbeaten teams. Cloud9 are in the top spot of the standings by virtue of a better individual game win-loss record. The squads will clash on Aug. 4 during the penultimate week of group play.

Eight teams are fighting for six spots in the Summer Split’s double-elimination playoff bracket. The top two seeds will head to the upper-bracket semifinals, with the other four seeds duking it out in the upper-bracket quarterfinals.

All group-play matches are best-of-three, while the playoff matches are best-of-five. The winner of the tournament will take home $100,000 of the $200,000 prize pool, with the top three teams qualifying for the World Championship.

Cloud9 opened their match against 100 Thieves with a 30-minute win on blue before earning a 26-minute victory on red. They will return to action on Saturday against NRG, who swept Shopify Rebellion in Sunday’s other match.

NRG followed a 54-minute win on blue with a 46-minute triumph on red to remain in fourth place at 2-2.

Group play continues Saturday with two matches:
–Cloud9 vs. NRG
–Shopify Rebellion vs. Dignitas

LCS Summer Split group stage standings (overall record, individual game win-loss record):
1. Cloud9, 4-0, 8-1
2. Team Liquid, 4-0, 8-2
3. FlyQuest, 3-1, 7-3
4. NRG, 2-2, 5-4
5. Dignitas, 1-3, 4-6
T6. 100 Thieves, 1-3, 2-6
T6. Immortals, 1-3, 2-6
8. Shopify Rebellion, 0-4, 0-8

LCS Summer Split prize pool:
1. $100,000, qualification to Worlds
2. $50,000, qualification to Worlds
3. $30,000, qualification to Worlds
4. $20,000
5-6. No prize money
7-8. No prize money

–Field Level Media