Nauru's Nitram Dagagio won gold in the under 74kg, with Papua New Guinea winning silver and Kiribati bronze.
In the 83kg category, Nauru also took gold and silver, with Tahiti winning bronze.
In the up to 93kg category, Nauru's Jesse Roland again took gold, with Tahiti (Miguel Hopuetai) taking silver and bronze going to New Caledonia’s (Frederick Warsdi).
Roland said: "I am very happy about the result, and of course this is what I was dreaming of - to take home my gold medal."