After retiring from the RCMP, Allen pursued his passion for athletics and became well known in the world of sports. His legacy includes Executive Director of Canada Basketball, President and founder of Sports Officials Canada, referee in four Olympic Games, and Vice-President of the technical Commission for FIBA.
Allen is remembered for his tireless efforts and contributions to basketball in Canada. In recognition, he received many distinctions including the FIBA order of merit, inductions into the Manitoba, Ottawa, Canada and FIBA Basketball Halls of Fame and a Lifetime Achievement Award from Coaching Association of Canada and the City of Ottawa Sports. His legacy lives on and he will be greatly missed by all.