Swimming at the 1972 Summer Olympics – Men's 400 metre freestyle Swimming at the 1972 Summer Olympics – Men's 400 metre freestyle The men's 400 metre freestyle event at the 1972 Olympic Games took place September 1. This swimming event used freestyle swimming, which means that the method of the stroke is not regulated (unlike backstroke, breaststroke, and butterfly events). Nearly all swimmers use the front crawl or a variant of that stroke. Because an Olympic size swimming pool is 50 metres long, this race consisted of eight lengths of the pool. Rick DeMont of the United States originally won the gold medal in 4:00.26. Following the race, the International Olympic
Dalby Olympic Swimming Pool offered by a government keen to create work by encouraging civic building projects. The pool buildings and surrounds of the new Olympic pools were architect designed. A notable survivor is the North Sydney Olympic Pool Complex opened on 4 April 1936. Design problems with the new large pools included the provision of adequate water filtration and the prevention of algae. The firm of AH Pierce & Co., still associated with commercial pools, imported calcium hypochlorite from England and pool builders took a keen interest in others' pool designs. Pool facilities usually comprised an Olympic-standard pool for recreation and competitions, a