Japan 14 New Zealand 12
Japan caused arguably the greatest upset in rugby Sevens history by claiming a stunning 14-12 win against New Zealand at Deodoro Stadium on Tuesday.
In last autumn’s Rugby World Cup, Japan beat South Africa in Brighton.
And to add injury to insult for highly-fancied New Zealand, their 2015 World Cup winner Sonny Bill Williams went off nursing what appeared to be an ankle injury.
Japan took an early lead through a try from Teruya Goto that Lomano Lemeki converted, but that was the cue for an immediate response.
Scott Curry and Akira Ioane collected touchdowns either side of half-time, but Japan would not buckle and they secured a famous victory through Kameli Soejima's touchdown that Katsuyuki Sakai converted.
Britain are also in New Zealand's group, but they had few issues in seeing off Kenya 31-7 thanks to tries from Dan Bibby (two), Mark Bennett, Dan Norton and Phil Burgess.