Jon Rønningen had the following finishes at major championships – 1985 World Championship: 52.0 kg. Greco-Roman (1st); 1986 World Championship: 52.0 kg. Greco-Roman (2nd); 1991 World Championship: 52.0 kg. Greco-Roman (3rd); 1989 World Championship: 52.0 kg. Greco-Roman (7th); 1995 World Championship: 52.0 kg. Greco-Roman (11th); 1994 World Championship: 52.0 kg. Greco-Roman (17th); 1990 European Championship: 52.0 kg. Greco-Roman (1st); 1988 European Championship: 52.0 kg. Greco-Roman (2nd); 1986 European Championship: 52.0 kg. Greco-Roman (3rd); 1996 European Championship: 52.0 kg. Greco-Roman (4th); 1981 European Championship: 48.0 kg. Greco-Roman (7th); 1984 European Championship: 52.0 kg. Greco-Roman (7th); 1992 European Championship: 52.0 kg. Greco-Roman (9th); 1980 European Championship: 48.0 kg. Greco-Roman (12th).