[1] The league will be contested by 10 teams - nine under-23 sides plus Hound Dogs, and began on 18 August 2019.

As a result of the COVID-19 pandemic, the Gibraltar FA decided to end the season after 16 games on 13 March 2020.

Competing clubs are required to register a reserve squad of 18 players, of which 13 must be Gibraltarian.

[3] Following the dissolution of Gibraltar Phoenix and Gibraltar United, along with St Joseph's opting not to return to the league following their withdrawal half-way through the previous season, Bruno's Magpies and College 1975 entered intermediate sides for the first time.

Note: Flags indicate national team as has been defined under FIFA eligibility rules.