Portugal competed at the 2011 World Aquatics Championships in Shanghai, China between July 16 and 31, 2011.
Open water swimming
MenOpen Water Qualifiers – Men AthleteEventFinalTimePositionArseniy LavrentyevMen's 10km2:03:51.947
Swimming
Portugal qualified 7 swimmers.
Men AthleteEventHeatsSemifinalsFinalTimeRankTimeRankTimeRankAlexandre AgostinhoMen's 50m Freestyle22.8132did not advanceMen's 100m Freestyle50.7145did not advanceCarlos AlmeidaMen's 100m Breaststroke1:02.1342did not advanceMen's 200m Breaststroke2:14.8629did not advanceSimao MorgadoMen's 100m Butterfly53.0122did not advanceDuarte MouraoMen's 200m Butterfly1:59.8128did not advanceDiogo CarvalhoMen's 200m individual medley1:59.519 Q1:59.8412did not advanceMen's 400m IM4:18.6814did not advance
Women AthleteEventHeatsSemifinalsFinalTimeRankTimeRankTimeRank Sara OliveiraWomen's 50m Butterfly27.7530did not advanceWomen's 100m Butterfly59.9332did not advanceWomen's 200m Butterfly2:11.3724did not advance Nadia VieiraWomen's 200m IM2:19.7428did not advanceWomen's 400m IM4:51.6528did not advance
References