 In 2003, Langtry scored the game-winning goal in the Mammoth's first-ever game, a 13-12 double-overtime victory over the Toronto Rock.In the 2007 National Lacrosse League expansion draft, Langtry was selected by the expansion Boston Blazers, but was immediately traded back to the Mammoth.On March 22, 2008, Langtry set a career high with 9 goals and added 4 assists as the Mammoth lost to the Portland LumberJax, and was awarded "Offensive Player of the Week" honors by the league.