 Ramba uchiverenga ndima iyi - Akapedza ari wechishanu paEuropean Championships muna 1986, ari wechishanu paWorld Indoor Championships muna 1987, yegumi pa1990 European Indoor Championships, yechitanhatu pa1990 European Championships uye yechishanu pa1991 World Indoor Championships. Akava shasha yeNorway muna 1989 na1991. Gare gare muna 1991 akahwina menduru yebronze paWorld Championships muTokyo nekukanda kwemamita 20.75, asi sezvo menduru yesirivheri Georg Andersen akazobviswa mumakwikwi nekuda kwekushandisa chinhu chakarambidzwa, Nilsen akasimudzirwa kunzvimbo yemenduru yesirivheri. Makwikwi okupedzisira aNilsen aiva muEuropean Indoor Championships muna 1992, kwaakapedza ari wechinomwe. 