Northern Mariana Islands is set to compete at the 2023 World Aquatics Championships in Fukuoka, Japan from 14 to 30 July.

Swimming

Northern Mariana Islands entered 4 swimmers.

Men AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRank Isaiah Aleksenko 50 metre backstroke 26.94 47 Did not advance 100 metre butterfly 54.46 NR 48 Did not advance Anthony Deleon Guerrero 50 metre breaststroke 33.05 55 Did not advance 100 metre breaststroke 1:12.66 67 Did not advance

Women AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRank Maria Batallones 50 metre breaststroke 35.96 42 Did not advance 50 metre butterfly 33.49 59 Did not advance Shoko Litulumar 50 metre freestyle 30.55 83 Did not advance 50 metre backstroke34.2554 Did not advance Mixed AthleteEventHeatFinalTimeRankTimeRank Isaiah AleksenkoAnthony DeleonShoko Litulumar Maria Batallones 4 × 100 m freestyle relay 4:05.62 39 Did not advance Isaiah Aleksenko Maria Batallones Anthony Deleon Shoko Litulumar 4 × 100 m medley relay 4:31.93 35 Did not advance

References