Following college at UCSF and San Jose State, Atack began his NASL career with the Los Angeles Aztecs in 1975.
Later in 1978, the Stompers were sold to a new ownership which moved the team to Edmonton, Alberta, Canada.
In 1980, he moved to the Golden Gate Gales of the American Soccer League.
He also played the 1980-1981 Major Indoor Soccer League season with the San Francisco Fog.
This biographical article related to an American soccer defender is a stub.