Bloomfield grew up in
Kiama, New South Wales and became a successful
surf life saver. In 1951/1952, he won the branch, state and Australian Junior Belt Championship and represented Australia several times in the 1950s. He won the Belt Race at The Royal International Carnival in 1954 at
Bondi, New South Wales; and in 1956 he won a silver medal in the Surf Race at the International and Australian Surf Championship Carnival,
Torquay, Victoria> The carnival was a display event held during the
1956 Melbourne Olympic Games. He wrote a book titled
Know How to Surf. In 1972 the Whitlam Government commissioned him to prepare a White Paper on the development of sport in Australia and this became extremely influential in the establishment of the
Australian Institute of Sport (AIS) in Canberra in 1981. The white paper titled
Role and scope and development of recreation in Australia. He prepared two reports that lead to the establishment of the Western Australian Department of Sport and
Western Australian Institute of Sport. In 1980, he was appointed deputy chairman of the newly established
Australian Institute of Sport and in 1985 replaced
Kevan Gosper as chairman, a position which he held until 1989. Whilst chairman, he was involved in managing the merger of the AIS with the
Australian Sports Commission (ASC) and responding to the allegations of the Senate inquiry into drugs in sport. He was co-chairman of the ASC with
Ted Harris during the merger period 1987 and 1989. In 2003, he authored the book ''Australia's Sporting Success: The Inside Story'', the first publication to document the development high performance sport in Australia. Between 1971 and 1973, Bloomfield was president of the Australian Sports Medicine Federation (now
Sports Medicine Australia). He was chairman of the Western Australian Institute of Sport Advisory Board (1980–1982), Western Australian Sports Centre Trust (1986–1989) and Australian Sports Science Council (1983–1986). In 1986, he became Chairman of the Committee responsible for setting up the then
Perth Superdrome, in 2018 known as HBF Stadium. ==Publications==