Canada’s Mikael Kingsbury won the men’s event, with Russian Alexandr Smyshlyaev second and Canadian Marc-Antoine Gagnon in third place.
The women’s final saw Canadian Justine Dufour Lapointe end the day in front of second placed American Hannah Kearney, while Andi Naude from Canada took the other podium place.
Coach Steve Desovich said that both Australians skied well in the qualification session, with Cox, the bronze medallist at the recent World Championships, advancing to the first final in 6th place and Graham in 8th position.
However, each made an error in the final that blocked their advancement through to the medal round second final.
“It was just one of those rough days you get in mogul skiing sometimes,” Desovich said.
“They have both had good seasons and today was not an indication of how they have been skiing.”
Graham currently sits in fifth spot on the World Cup standings, equal on points with World Champion Anthony Benna from France. Cox is ranked 10th in the World.
The Lake Placid event marks the final event of the season for Britt Cox, with Matt Graham to compete in one more World Cup event next week in Val St Come in Canada on February 7.
IMAGE: Matt Graham flying down the bumps in Lake Placid © FIS/Julien Heon