Kammala wannan jumla: Dittmer ya sami lambar azurfa a gasar C-1 500 m a gasar
2007 Gasar Cin Kofin Duniya ta ICF Canoe Sprint a Duisburg. Ya ci gaba da yin gasa a Wasannin Olympics na bazara na 2008 a Beijing, amma bai sami lambar yabo ba a kowane ɗayan abubuwan C-1.