Pedzisa mutsara unotevera: Alshammar akahwina menduru yake yokutanga yenyika yose, menduru yendarira mumakwikwi emamita 50 akasununguka, paEuropean Championships ya1997. Akagadzira iyi sitiroko kuva unyanzvi hwake ndokukunda sirivha pa
Makwikwi eEurope a1999. Akapinda mumakwikwi eOlympic muSydney muna 2000 uko akakunda menduru dzesirivha mumakwikwi e50 m ne100 m freestyle, nguva dzose dzakakundwa naInge de Bruijn, uye menduru yebronze nechikwata cheSweden relay.