Hoop dreams for women's teams - London 2012 - Basketball
There were wins for Australia, Turkey and the USA on Day 7 at the Basketball Arena, while France needed overtime to get the job done.
The tall Cambage powered through the lane to score with a one-handed slam in the midst of a 12-0 run early in the third quarter that gave Russia a 44-33 lead.
The 20-year-old said it was her first ever dunk in a game.
'It's good to just finally do it and get everybody off my back about it,' she said. 'It's not been in my head all the time, but I was wide open, and I felt it so I just did it.
'It was kind of an out-of-body experience. I wasn't really thinking about it, it was weird.'
Canada's victory saw them improve to 2-2, but they had to scrap for the win after making it look easy in the first half.
They led 18-8 at the end of the first quarter and 39-25 at half-time, but Brazil came back much stronger after the break and began to chip away at the lead.
The Czech Republic may have given the USA a wake-up call early on in their late-night match but got handed a lesson thereafter, as the USA enjoyed their 37th straight Olympic Games win, triumphing 88-61.
The Czechs scored the first 10 points of the game and led 26-24 at the end of the first quarter. But the USA battled back to have a double-digit lead by half-time and they then began the third quarter on a 20-3 run that killed the game.
Celine Dumerc nailed a three-pointer with six seconds left in regulation to force the extra period and then hit another almost on the overtime buzzer to win it.
France had overturned a four-point lead late in the extra period to snatch the win.