Tonga played in the tournament for the first time, replacing Samoa from the previous year and joining Fiji, New Zealand and hosts Australia at Bond University on the Gold Coast.

[1][2] The Oceania Championship was played over three rounds in nine days, with New Zealand defeating Australia by 43–28 in the last match of the round-robin tournament to take the title.

[3] The teams for the 2018 Oceania Rugby Under 20 tournaments were:[4] Championship Trophy Source: rugbyarchive.net

The Oceania Trophy was played at Lotopa, near Apia in Samoa, as a two-match series between Samoa and Tonga.

[5] Final competition table: Source: Oceania Rugby