He worked for Rothmans tobacco company, then Rio Tinto Group|(Cam and Motor mine).
Running in the 1960s and 1970s, Dzoma was selected to compete for Rhodesia (today Zimbabwe) in that country's 1968 and 1972 Olympic teams [1] .
This team was refused entry permits to Mexico for political reasons, and Rhodesia was banned from the Olympic Games until 1980.
Dzoma's running at this time, along with fellow Zimbabwean athlete, Mathias Kanda, are detailed by his Australian coach's book: A Wilderness of Spite by John Cheffers.
A comprehensive listing of Dzoma's track times and more biographical information is available online.