Ken had a first-class cricket career 1960/61 to 73/74 seasons with SA Cricket Team in the Sheffield Shield. A left-hand batsman he was part of the sides that won the Shield in 1963/64 and 1968/69 and went on to play 97 first-class matches in a solid career, averaging 37 with
the bat. He was the SA team captain in 7 matches from 1971 to 1973. He toured New Zealand in 1966/67 with the Australian team captained by Les Favell.
He was a highly rated football umpire, officiating in four SANFL grand finals three interstate games during his 130 games in seven years (1961–1967) at the top level.
Following his sport career, he became a TV and radio sports presenter. During the 1980s, KG hosted a 30-minute football wrap-up show on Channel 9 Adelaide called KG's Footy Show. The show was run on Saturdays during the football season and ran in the 5:30–6pm time slot. KG and guests who included players usually from the day's winning teams in the SANFL, would give their comments and show highlights of the games. KG was also the weekend sports presenter for Channel 9 news in Adelaide for over 20 years until he joined Channel 7 in 2005. For his long TV service to football, the SANFL inducted him into their Hall of Fame in 2012.
He also co-hosted the FIVEaa Sports Show from the mid-1980s until 2008, firstly with former
South Australian cricket captain David Hookes and later with former SANFL player and Adelaide Crows (AFL) coach Graham Cornes. The radio show, KG and Cornesy, was among Adelaide's most popular drive time shows.
In the 1990 Australian Day Honours Ken was made a Member of the Order of Australia (AM)
for "service to the media, particularly as a sporting broadcaster".
He is frequently very opinionated and pro-South Australian and passionate of any South Australian sporting Team, Player, Coach and anyone associated with Sport