 Mauritania competed at the 2012 Summer Olympics in London , which was held from 27 July to 12 August 2012 . The country 's participation at London marked its eighth appearance in the Summer Olympics since its debut in the 1984 Summer Olympics . The delegation included two track and field athletes , Jidou El Moctar and Aicha Fall , who were selected to the team by wildcard places , as the nation had no athletes that met either the " A " or " B " qualifying standards . Moctar was selected as flag bearer for the opening ceremony while a LOCOG Games Maker carried it for the closing ceremony . Neither of the two athletes progressed beyond the heats . 
