 Nyorai mberi kweiyi ndima - Hattestad akaita kutanga kwake kwenyika dzose pa 1981 European Junior Championships, achipedza wechishanu. Gore rakatevera racho, aine makore 16 chete, akakwikwidza mumakwikwi eEuropean Senior Championships. Pakutanga kwema1990, Hattestad akanga ari mumwe wevakadzi vakanakisisa vanokanda pfumo munyika. Muna 1993, akakunda zita rake rekutanga guru renyika dzakawanda, World Championships muStuttgart pamwe neIAAF Golden Four. Kwaizvozvi, akawedzera zita reEuropean ra1994. Mumitambo yeOlympic ya1996 muAtlanta, akahwina menduru yebronze. Gore rakatevera racho, akawanazve makwikwi eNyika. Pa1999 World Championships, akarasikirwa nemutambo zvakare, achipedza wechitatu, asi muna 2000 akakunda chete zita rakashaikwa mubasa rake negoridhe pamitambo yeOlympic muSydney. 