Australia - South Australia - Premier League 03/23 04:00 4 [9] Croydon Kings v Adelaide United NPL [12] W 2-4
Australia - South Australia - Premier League 03/08 10:00 3 [8] Para Hills Knights v Adelaide United NPL [11] L 2-1
Australia - South Australia - Premier League 03/02 04:30 2 [11] Adelaide United NPL v Modbury Jets [7] L 1-5
Australia - South Australia - Premier League 02/24 05:30 1 [2] Adelaide United NPL v Campbelltown City [2] L 0-5
Australia - South Australia - Premier League 09/08 10:00 1 [5] Modbury Jets v Adelaide United NPL [3] W 2-7
Australia - South Australia - Premier League 09/02 05:30 2 [2] Campbelltown City v Adelaide United NPL [3] W 1-3
Australia - South Australia - Premier League 08/25 10:00 8 [3] Adelaide United NPL v Campbelltown City [2] W 2-1
Australia - South Australia - Premier League 08/19 05:30 7 [3] Adelaide United NPL v Adelaide Comets [6] W 4-3
Australia - South Australia - Premier League 08/11 10:00 22 [4] Adelaide United NPL v West Adelaide [12] W 3-1
Australia - South Australia - Premier League 08/05 05:00 21 [6] Croydon Kings v Adelaide United NPL [5] W 1-2
Australia - South Australia - Premier League 07/15 05:30 20 [4] Adelaide United NPL v Campbelltown City [2] L 1-3
Australia - South Australia - Premier League 07/07 10:00 19 [8] White City FK Beograd v Adelaide United NPL [4] L 3-0
Australia - South Australia - Premier League 07/01 07:30 18 [3] Adelaide United NPL v Metrostars [1] L 1-2
Australia - South Australia - Premier League 06/17 05:30 17 [5] Modbury Jets v Adelaide United NPL [3] L 4-1
Australia - South Australia - Premier League 06/11 07:30 16 [3] Adelaide United NPL v Sturt Lions [12] L 1-4
Australia - South Australia - Premier League 06/03 08:30 15 [8] Adelaide Olympic v Adelaide United NPL [3] D 2-2
Australia - South Australia - Premier League 05/27 05:30 14 [3] Adelaide United NPL v Adelaide City [6] L 1-3
Australia - South Australia - Premier League 05/20 05:30 13 [3] Adelaide United NPL v Adelaide Comets [7] D 1-1
Australia - South Australia - Premier League 05/12 10:00 12 [10] South Adelaide Panthers v Adelaide United NPL [3] W 0-1
Australia - South Australia - Premier League 05/06 05:30 11 [8] West Adelaide v Adelaide United NPL [2] D 2-2
Australia - South Australia - Premier League 04/30 05:30 10 [2] Adelaide United NPL v Croydon Kings [10] D 1-1
Australia - South Australia - Premier League 04/25 05:30 9 [2] Campbelltown City v Adelaide United NPL [1] W 1-2
Australia - South Australia - Premier League 04/22 09:45 8 [3] Adelaide United NPL v White City FK Beograd [7] W 3-0
Australia - South Australia - Premier League 04/08 05:30 7 [1] Metrostars v Adelaide United NPL [3] W 1-2
Australia - South Australia - Premier League 04/02 07:30 6 [3] Adelaide United NPL v Modbury Jets [6] L 1-2
Australia - South Australia - Premier League 03/25 04:30 5 [10] Sturt Lions v Adelaide United NPL [2] W 1-4
Australia - South Australia - Premier League 03/12 06:30 4 [4] Adelaide United NPL v Adelaide Olympic [12] W 3-0
Australia - South Australia - Premier League 03/05 04:30 3 [8] Adelaide City v Adelaide United NPL [7] W 0-2
Australia - South Australia - Premier League 02/25 06:30 2 [9] Adelaide Comets v Adelaide United NPL [1] L 2-0
Australia - South Australia - Premier League 02/18 04:30 1 [2] Adelaide United NPL v South Adelaide Panthers [2] W 6-2
Adelaide United U21 jest młodzieżową akademią australijskiej drużyny piłkarskiej Adelaide United. Drużyna występuje w National Youth League, najwyższej lidze piłkarskiej dla zawodników poniżej 21 roku życia w Australii. Młodzi zawodnicy Adelaide United U21 mają możliwość trenowania i rozwoju pod okiem doświadczonych trenerów i sztabu szkoleniowego, a także rywalizacji z najlepszymi drużynami młodzieżowymi w całym kraju. Drużyna odniosła również sukcesy w rozgrywkach pucharowych, zdobywając w 2019 roku National Youth Championship.