Tor Svendsberget started for Engerdal Sportsklubb . In 1967 and 1968 he won the individual gold medals at the Junior World Championships held for the first time in Altenberg and Luleå . He first took part in the biathlon world championships in Zakopane in 1969 and was 23rd in the individual. A year later he won the silver medals both in the individual behind Alexander Tichonow and as a starting runner with Ragnar Tveiten , Magnar Solberg and Esten Gjelten as the relay of Norway behind the relay of the Soviet Union. 1971 came in Hämeenlinna again the win of the silver medal with Tveiten, Solberg and Ivar Nordkild in the relay race, in which Svendsberget was again starting runner. At the 1972 Winter Olympics in Sapporo , the Norwegian ran into eighth place in the individual and just missed an Olympic medal with Kåre Hovda , Nordkild and Solberg in fourth place in the relay race. In Lake Placid he won at the World Championships the following year behind Tichonow and Gennadi Kowaljow the bronze medal in the individual and with Esten Gjelten, Tveiten and Kjell Hovda silver in the relay race behind the Soviet Union. Svendsberget achieved similar results in 1974 in Minsk . Behind Juhani Suutarinen and Gheorghe Gârniță he again won bronze in the individual and with the Hovdas and Terje Hanssen bronze in the relay competition. In the sprint competition held for the first time, the Norwegian took 29th place. In 1975 he again achieved very good results in Antholz , but missed medal wins. In the individual he just missed a medal in fourth place, in the sprint race he was fifth and in the sprint he reached 14th place. In 1976 Svendsberget took part in the Olympic Winter Games for the second time. In Innsbruck he was ninth in the individual and fifth in the relay with Kjell Hovda, Hansen and Svein Engen . At the Biathlon World Championships in 1977 in Vingrom , he again just missed a medal, with the Norwegian coming fourth. He also achieved eighth place in the individual and ninth place in the sprint. The Biathlon World Championships in Hochfilzen in 1978 , at which Svendsberget with Odd Lirhus , Sigleif Johansen and Roar Nilsen as the last runner of the relay, again won the silver medal and with the relay of the GDR for the first time gave a German team the victory at a World Cup, concluded the international career had to.
Also nationally Svendsberget was a runner of the second and third places and less a winning runner. In 1969 he won his first silver medal in singles behind Jon Istad . In 1973 she won silver behind Tveiten in the individual, and in 1975 behind Bjørn Sirijord in the sprint. In 1976 he won the bronze medal in the relay race with the representation of Østerdals . The following year he won both silver behind Engen in the individual and bronze in the sprint behind Engen and Johansen. Svendsberget won the only title of his career in 1978 with Sigvart Bjøntegård , Ola Lunde and Kjell Søbak in the relay race. He also won his last medal in 1979 with bronze in the relay competition.