summer olympics competed summer olympics athens greece august country participation athens marked sixth appearance summer olympics debut summer olympics delegation included track field athletes selected failed meet qualifying standards selected flag bearer opening ceremony progressed heats background participated summer olympic games debut summer olympics los_angeles united_states summer olympics athens selected athletes usually able enter qualified athletes individual event long athlete met standard athlete event met standard athletes met standard allowed select athletes gender athletes selected compete athens games men meters women meters flag bearer opening ceremony athletics making summer olympics debut notable carrying flag opening ceremony qualified summer olympics place best time seconds world championships athletics meters seconds slower standard required competed august heat seven athletes ran time seconds finishing seventh russia disqualified el_salvador placed ahead seconds heat led cuba seconds athletes ranked seconds slowest athlete progressed semi finals end competition competing summer olympics qualified granted best time seconds world championships athletics meters seconds slower qualifying standard competed august heat seven athletes finishing time seconds ranked ahead seconds heat led overall seconds slowest athlete progressed advancing quarter finals key note ranks given track events athlete heat qualified round qualified round fastest loser field events position achieving qualifying target national record round applicable event bye athlete required compete round
Mauritania at the 2004 Summer Olympics