Career
He sought selection in the Canadian Olympic Team for the 1976 Games in Montreal. Whilst competing at the Canadian Olympic Trials Stephen was placed under police protection due to death threats. In 1977 Badger broke the short course world record for the 400-metre freestyle.
After suffering glandular fever in 1978, he returned to international competition, touring Europe in early 1980 with the Canadian national swimming team
He retired the day after the Canadian Olympic Federation announced their boycott of the 1980 Summer Olympics in Moscow. He returned to Sydney, Australia in 1981 and began his career in swimming coaching.