His columns regularly covered ice hockey, horse racing, figure skating and Canadian football.

[2] Proudfoot recalled his experience at the 1972 Summit Series in an interview in May 1998, and stated that "the Paul Henderson goal is the greatest single event in the history of Canadian sports".

[6] Proudfoot wrote an investigative report into the death of jockey Dan Beckon in 1988, and received the National Newspaper Award.

Proudfoot raised doubt into the ruling of a suicide, after the jockey had failed a third drug test and faced a suspension from racing.

[2][3] Proudfoot reported regularly on figure skating in his daily column from 1971 onwards, including local and international competitions.

[8] He was the namesake for the Proudfoot Corner of the Toronto Star Santa Claus Fund, which helped needy children during the holiday season.

[10] He was inducted as a reporter into the Canadian Football Hall of Fame in 1992,[5] and received the lifetime achievement award from Sports Media Canada in 1998.