Career
Andersson began to reach the peak of his athletic powers in the late 1960s. Andersson also took a second outdoor 800 m national title that year. He competed internationally for Sweden during his running career.
After retiring from athletics, he became an agent for other top level runners.
He travelled frequently and spoke a number of languages. He remained a prominent figure in athletics circles and helped arrange interviews with Gunder Hägg – a Swedish runner and world record holder of the 1940s – for journalists, including acting as a translator.
He spent much time in Belgrade, Serbia in his later years and acted as an advisor to those organising the Belgrade Marathon. He died in the Serbian capital at the age of 66 on 20 January 2011.
Following his death, the organisers of the Belgrade Marathon instituted the "Kenth Andersson Trophy" – an award to be given in recognition of those who have helped in the development of the competition.