All four decider matches in the group stage went the distance Sunday, setting the stage for playoff action at the Roobet Cup.

FaZe Clan defeated OG 2-1 in Group A, while Astralis beat Complexity in Group B, Eternal Fire eliminated MOUZ in Group C and 9z Team knocked out FURIA Esports in Group D by the same scores. Faze Clan, Eternal Fire and 9z all rallied to win via reverse sweeps.

The top two teams from each group advanced to the single-elimination playoffs, where matches are best-of-three. The winner of the $250,000 Counter-Strike: Global Offensive event will earn $150,000, with the grand final scheduled for Thursday.

After OG opened with a 16-11 win on Ancient, FaZe Clan answered with a 16-9 decision on Mirage and a 16-13 win on Overpass. Canada's Russel "Twistzz" Van Dulken led the winners with 71 kills and a plus-19 kills-deaths ratio.

Astralis sandwiched a 16-5 win on Inferno and a 16-9 victory on Nuke around a 16-11 loss to Complexity Gaming on Overpass. Denmark's Benjamin "blameF" Bremer paced Astralis with 67 kills and a plus-27 K-D differential.

Eternal Fire shrugged off an opening 16-2 loss on Nuke, storming back with 16-12 and 16-13 triumphs over MOUZ on Mirage and Inferno, respectively. Turkey's Ozgur "woxic" Eker led EF with 69 kills and a plus-24 K-D differential.

FURIA began with a 16-11 win on Overpass, only to watch 9z Team rally with a 16-4 victory on Ancient and a clutch 19-17 overtime victory on Mirage. 9z got 69 kills from Chile's David "dav1d" Tapia Maldonado and a plus -26 K-D ratio from Brazil's Lucas "nqz" Soares.

Two quarterfinal matches are scheduled for Monday:

--BIG vs. Eternal Fire

--Cloud9 vs. 9z Team

Two quarterfinal matches are scheduled for Tuesday:

--ENCE vs. FaZe Clan

--forZe vs. Astralis

Roobet Cup prize pool

1. $150,000

2. $50,000

3-4. $15,000

5-8. $5,000

9-12. no money - OG, Complexity Gaming, MOUZ, FURIA Esports

13-16. no money -- Entropiq, Movistar Riders, Imperial Esports, Outsiders

--Field Level Media