Fiji, New Zealand and the United States swept their pools to roll into the Hong Kong Sevens rugby quarterfinals on Saturday.
England also topped its pool unbeaten, albeit drawing with Russia 12-12.
In the quarterfinals on Sunday, it's: Fiji vs. Kenya; England vs. Australia; New Zealand vs. Wales; U.S. vs. South Africa.
The U.S., a quarterfinalist in all seven legs in the world series, beat Australia 22-7 to top Pool C, boosting a 12-7 lead at halftime with long-range tries finished by Perry Baker and Ben Pinkelman.
Baker also scored two as the U.S. came from 14-0 down to beat Argentina 26-14.
New Zealand, down to a 10-man squad after captain Tim Mikkelson and Sam Dickson were ruled out injured, gave the armband to DJ Forbes, who scored the only points with two minutes to go as Kenya was edged 5-0.
Kenya lost to France 17-10 but finished second in their pool on points difference.
England conceded a second ever draw with Russia, and created history earlier when Dan Norton's second try in beating Scotland 19-0 made him the 13th person to pass 1,000 points in world series history.
England still topped Pool B ahead of South Africa, which defeated Russia and Scotland by a combined 81-0.
Fiji dispatched South Korea 57-0, and zoomed to 17-0 against Wales and ended up with six tries in a 36-10 win.