Canada's Rosie MacLennan and Karen Cockburn upset Chinese favourites Shanshan Huang and Li Dan to win gold and silver at the trampoline World Cup on Saturday.
MacLennan and Cockburn qualified third and fourth in the prelims but stepped up their performance in the final to share a World Cup podium for the first time.
MacLennan won her second career World Cup gold medal with a score of 55.605 points with Cockburn a close second at 55.125.
Huang, the 2009 world champion, took the bronze with a score of 55,050 and 2010 world champion Li Dan ended up off the podium in fourth at 54.70.
Both Cockburn and MacLennan went into their final competition before the Olympics eager to prove the formidable Chinese team was not unbeatable.
Cockburn, who'd like nothing more than to cap her extraordinary career with a record fourth straight Olympic medal, also admitted a 1-2 finish seemed almost too good to be true.
"We wanted to do strong routines and hoped to push one of the Chinese off the podium but we never expected to come first and second," said MacLennan, who was runner-up at last year's world championships.
"It's kind of surreal, the Chinese didn't fall and they did good routines, so we're kind of shocked," added Cockburn, who has won two silvers and a bronze in three Olympic Games.