W2004 in the sport of athleticsW2004 AAA ChampionshipsW2004 Asian Junior Athletics ChampionshipsW2003–04 Australian Athletics ChampionshipsW2004 Central American and Caribbean Junior Championships in AthleticsW2004 European Cross Country ChampionshipsW2004 European Cup (athletics)W2004 European Athletics Indoor CupW2004 German Athletics ChampionshipsW2004 IAAF World Indoor ChampionshipsW2004 Ibero-American Championships in AthleticsW2004 NACAC U23 Championships in AthleticsWAthletics at the 2004 Summer OlympicsW2004 United States Olympic Trials (track and field)W2004 World Junior Championships in Athletics