On February 21, 2001, the Avalanche traded Deadmarsh along with Aaron Miller in exchange for Jared Aulin, and Colorado's first round pick in the 2001 NHL Entry Draft (Dave Steckel) for Rob Blake and Steven Reinprecht. During round one of the 2001 Stanley Cup Playoffs, Deadmarsh scored an overtime goal which caused the Kings defeat the very favoured Detroit Red Wings. The Kings would lose against his old team, the Avalanche, in seven games. The Avalanche would end up winning their second Stanley Cup.