[3] Mariner was selected for the Australian Schoolboys team in 2021; however, due to COVID-19, no matches were played.
[4] Mariner made his first grade debut for Brisbane against Wests Tigers in round 20 of the 2022 NRL season.
[5] During Brisbane's game against the New Zealand Warriors in round 13 of the 2023 season, Mariner scored two tries - his first points in the NRL - while playing on the wing.
[6] In round 2 of the 2024 NRL season, Mariner scored two tries for Brisbane in their 28-18 victory over South Sydney.
[9] Mariner played 21 games for Brisbane in the 2024 NRL season and scored 17 tries which saw the club miss the finals finishing 12th on the table.