 Pamberi peizvi, Martinsson akanga awana menduru mbiri dzomunhu oga mumakwikwi epasi rose: sirivha mumamita 50 achimhanya chinangwa chakasanganiswa pa2002 ISSF World Shooting Championships uye bronze mumamita 10 achimhanya chinangwa chakasanganiswa muna 2008. Akatorawo chikamu mumakwikwi ekupedzisira eOlympic aimhanya muna 2004, achisvika kumagumo uye achipedza wechina, achirasikirwa nemenduru yebronze nemapoinzi 0.3. Pa2006 ISSF World Shooting Championshipsakakundikana kuhwina menduru yega, asi aive chikamu chechikwata cheSweden chakahwina menduru mumitambo mina yese yechikwata imwe sirivheri nematatu endarira. 