Kammala jumla mai zuwa: 2005 Spa-Francorchamps GP2 Series zagaye ya kasance GP2 Series mota tseren da aka gudanar a ranar 10 ga Satumba da 11, 2005 a Circuit de Spa-Francorchamps a Stavelot, Belgium. Ya kasance zagaye na ƙarshe na kakar GP2 Series 2005. A karshen mako na tseren ya goyi bayan
Babban Gasar Belgium ta 2005.