Education
He finished fourteenth at the 1984 European Indoor Championships, thirteenth at the 1990 European Indoor Championships, thirteenth at the 1991 IAAF World Indoor Championships and ninth at the 1992 European Indoor Championships.
He finished fourteenth at the 1984 European Indoor Championships, thirteenth at the 1990 European Indoor Championships, thirteenth at the 1991 IAAF World Indoor Championships and ninth at the 1992 European Indoor Championships.
He represented Froland Illinois, Sørild FIK and IK Tjalve. He also competed at the World Championships in 1987 and 1991 without reaching the finals. This would have been a new Norwegian record at the time if not Lars Arvid Nilsen put the shot 20.91 metres in Indianapolis the same day.
Sagedal"s result places him third among Norwegian shot putters through all time, behind Nilsen and Georg Andersen.
In 1987 Sagedal was found guilty of probenecid doping together with four other Norwegian shot putters. In 1992 he tested positive for methandienone, and was suspended for four years.