Since he saw no more prospects in terms of competitive sport in Jamaica, he moved to the team of Canadian Pierre Lueders . Together with him, he won four World Cup races in the 2004/05 season (three in the two-man and one in the four-man bobsleigh). At the 2005 World Cup in Calgary , he won the gold medal. In the 2005/06 season two more World Cup victories were added.
In July 2005, Brown applied for Canadian citizenship. This was granted to him shortly before the 2006 Winter Olympics due to a special arrangement. On the Olympic bobsleigh run in Cesana Torinese , he finished second with Lueders.
Lascelles Brown started with Lyndon Rush for Canada at the 2010 Winter Olympics on his home track at the Whistler Sliding Center . In the second run of the two-man bobsleigh competition, the two-man bobsleigh, with which he and Lyndon Rush had set a new starting time, fell back to 21st place after finishing third in the first run in the second run. On February 27, 2010 he was a member of the Rush team when they won the bronze medal in the four-man bobsleigh behind Steven Holcomb and André Lange .
