South Korea competed at the 2003 World Championships in Athletics from August 23 to 31. A team of 7 athletes was announced in preparation for the competition.
Results Men AthleteEventHeatsQualificationQuarterfinalsSemifinalsFinalTimeWidthHeightRankTimeWidthHeightRankTimeWidthHeightRankTimeWidthHeightRankLee Bong-JuMarathon2:10:38 11Lee Myong-SeungMarathon2:16:46 40Ji Young-JunMarathon2:20:21 52Kim Yi-YongMarathonDNFLee Dae-Ro20 kilometres walkDQ
Women AthleteEventHeats QualificationQuarterfinalsSemifinalsFinalTimeWidthHeightRankTimeWidthHeightRankTimeWidthHeightRankTimeWidthHeightRankChoi Kyung-HeeMarathon2:43:38 53Kim Mi-Jung20 kilometres walkDQ
References Result by Events.