| Australia New South Wales U20 League | 2021/03/13 06:00 | Manly United U20 v Blacktown City U20 | W | 0-1 |
| Australia New South Wales U20 League | 2020/09/19 07:00 | Manly United U20 v Blacktown City U20 | W | 1-2 |
| Australia New South Wales U20 League | 2020/03/07 06:02 | Manly United U20 v Blacktown City U20 | L | 2-0 |
| Australia New South Wales U20 League | 2019/06/23 03:04 | Blacktown City U20 v Manly United U20 | W | 1-0 |
| Australia New South Wales U20 League | 2019/04/07 03:00 | Manly United U20 v Blacktown City U20 | W | 0-3 |
| Australia New South Wales U20 League | 2018/06/24 03:09 | Manly United U20 v Blacktown City U20 | L | 2-1 |
| Australia New South Wales U20 League | 2018/04/07 07:06 | Blacktown City U20 v Manly United U20 | W | 2-1 |
| Australia New South Wales U20 League | 2017/07/22 06:54 | Manly United U20 v Blacktown City U20 | D | 2-2 |
| Australia New South Wales U20 League | 2021/05/23 03:00 | Bull FC Academy U20 v Blacktown City U20 | W | 0-1 |
| Australia New South Wales U20 League | 2021/05/16 04:00 | Apia L Tigers U20 v Blacktown City U20 | D | 0-0 |
| Australia New South Wales U20 League | 2021/05/09 03:45 | Sydney Olympic U20 v Blacktown City U20 | D | 1-1 |
| Australia New South Wales U20 League | 2021/05/01 06:00 | Marconi Stallions U20 v Blacktown City U20 | W | 1-2 |
| Australia New South Wales U20 League | 2021/04/11 03:00 | Blacktown City U20 v Mt Druitt Town Rangers U20 | W | 3-1 |
| Australia New South Wales U20 League | 2021/04/03 02:30 | Sutherland Sharks U20 v Blacktown City U20 | W | 0-8 |
| Australia New South Wales U20 League | 2021/03/28 02:00 | Blacktown City U20 v Rockdale Ilinden FC U20 | W | 3-0 |
| Australia New South Wales U20 League | 2021/03/21 02:30 | Sydney United U20 v Blacktown City U20 | D | 1-1 |
| Australia New South Wales U20 League | 2021/05/22 07:00 | Manly United U20 v Wollongong Wolves U20 | L | 0-2 |
| Australia New South Wales U20 League | 2021/05/15 07:00 | Mt Druitt Town Rangers U20 v Manly United U20 | W | 1-4 |
| Australia New South Wales U20 League | 2021/05/08 07:00 | Manly United U20 v Marconi Stallions U20 | W | 3-0 |
| Australia New South Wales U20 League | 2021/05/02 02:30 | Sydney United U20 v Manly United U20 | L | 5-1 |
| Australia New South Wales U20 League | 2021/04/17 03:00 | Bull FC Academy U20 v Manly United U20 | W | 0-1 |
| Australia New South Wales U20 League | 2021/04/10 07:00 | Manly United U20 v Sydney Olympic U20 | W | 1-0 |
| Australia New South Wales U20 League | 2021/04/02 06:00 | Manly United U20 v Sydney FC U20 | W | 1-0 |
| Australia New South Wales U20 League | 2021/03/27 08:15 | Apia L Tigers U20 v Manly United U20 | W | 2-5 |