<prompt> Pedzisa mutsara unotevera: Pa2008 Summer Olympics muBeijing, Silva akakodzera nokuda kwechikwata chake chechipiri cheChilean mu  <response>: nhangemutange yevanhurume yekumhanya-mhanya nekugamuchira otomatiki kubva kuChilean Cycling Federation uye iyo Union Cycliste Internationale UCI, zvichibva pane zvaakaita zvakanakisa paWorld uye Pan American Championships uye paMountain Biking World Series. Silva haana kukwanisa kukwidziridza zvakare nhangemutange yakazara yenyika kubva pakutasva kwake muAthens, sezvo akapedza kosi yake aine ma laps maviri chete ekupedzisa uye nzvimbo makumi matatu nenhanhatu yekupedzisira. 