From 1985 Walsh was a cycling coach with Michael Turtur at the South Australian Sports Institute until about 1987.
Over his career as coach, Australia won two Olympic gold medals, nine silver, nine bronze and ten world titles.
Gained an F.I.A.C./U.C.I./Olympic Solidarity Committee, International Cycling Coaches Diploma in New Zealand.
He was one of four persons appointed by the Federation of International Amateur Cycling to be responsible for Coaching Development throughout the world.
Walsh was a Senior Lecturer in Technical and Further Education at Kintore Avenue, Adelaide, then at Regency Park College until April 1985, specialising and writing a book on interferometry.
During this time he was seconded to the University of Adelaide and helped construct an interferometer at an Australian Research Establishment which was the first in the world to measure black holes in space.
Three years later in 1990 he was awarded the status of World Coach by the Union Cycliste Internationale.
From 2004 to 2011, Walsh assisted Adelaide coach Neil Craig with fitness and rehab.
[citation needed] In 2015, he was an inaugural Cycling Australia Hall of Fame inductee.