His rookie year on the World Cup (2006) also included the only World Cup podium of his career as of 2012; he placed 3rd in Moguls in the World Cup that took place on March 1, 2006 in Jisan Forest, South Korea, just behind the winner and then freshly-crowned Olympic Champion Dale Begg-Smith and behind the second place finisher Guilbaut Colas from France (it was the first World Cup podium for Colas as well).
Kingsbury continued his blossoming season by winning the bronze medal in the moguls event of the 2011 FIS World Championships, finishing behind countryman Alexandre Bilodeau, and winner Guilbaut Colas.