Fixtures & Results
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| Sunday, 02/09/2018 - Senior A |
| Caldy Senior U18 Colts | 48 | 7 | Southport Senior U18 Colts |
| Sunday, 09/09/2018 - Senior A |
| Southport Senior U18 Colts | 0 | 69 | Lymm Senior U18 Colts |
| Sunday, 16/09/2018 - Senior A |
| Chester Senior U18 Colts | Liquidated Fixture | Southport Senior U18 Colts |
| Sunday, 23/09/2018 - Senior A |
| Southport Senior U18 Colts | 49 | 0 | Macclesfield Senior U18 Colts |
| Sunday, 30/09/2018 - Lancashire Colts: Frank Morgan U18 Cup |
| Wigan Senior U18 Colts | 21 | 41 | Southport Senior U18 Colts |
| Sunday, 30/09/2018 - |
| Wigan Senior U18 Colts | 21 | 41 | Southport Senior U18 Colts |
| Sunday, 07/10/2018 - Senior A |
| Sandbach Senior U18 Colts | 36 | 0 | Southport Senior U18 Colts |
| Sunday, 14/10/2018 - Senior A |
| Wilmslow Senior U18 Colts | 31 | 0 | Southport Senior U18 Colts |
| Sunday, 21/10/2018 - Senior A |
| Southport Senior U18 Colts | 0 | 69 | Birkenhead Park Senior U18 Colts |
| Sunday, 04/11/2018 - |
| Southport Senior U18 Colts | v | Kirkby Lonsdale Senior U18 Colts |
| Sunday, 11/11/2018 - Conference League - Senior B |
| Kirkby Lonsdale Senior U18 Colts | 36 | 17 | Southport Senior U18 Colts |
| Sunday, 11/11/2018 - Senior A |
| Lymm Senior U18 Colts | v | Southport Senior U18 Colts |
| Sunday, 18/11/2018 - Conference League - Senior B |
| Southport Senior U18 Colts | 59 | 10 | Liverpool Collegiate Senior U18 Colts |
| Sunday, 25/11/2018 - Conference League - Senior B |
| Newcastle (Staffs) Senior U18 Colts | 50 | 31 | Southport Senior U18 Colts |
| Sunday, 02/12/2018 - Conference League - Senior B |
| Wilmslow Senior U18 Colts | Liquidated Fixture | Southport Senior U18 Colts |
| Sunday, 09/12/2018 - Conference League - Senior B |
| Southport Senior U18 Colts | 15 | 12 | Vale of Lune Senior U18 Colts |
| Sunday, 16/12/2018 - Conference League - Senior B |
| Altrincham Kersal Senior U18 Colts | Home Walkover | Southport Senior U18 Colts |
| Sunday, 23/12/2018 - Conference League - Senior B |
| Southport Senior U18 Colts | 28 | 10 | Heaton Moor Senior U18 Colts |
| Sunday, 06/01/2019 - Conference League - Senior B |
| Liverpool Collegiate Senior U18 Colts | 58 | 12 | Southport Senior U18 Colts |
| Sunday, 13/01/2019 - Conference League - Senior B |
| Southport Senior U18 Colts | 66 | 20 | Newcastle (Staffs) Senior U18 Colts |
| Sunday, 20/01/2019 - Conference League - Senior B |
| Southport Senior U18 Colts | Liquidated Fixture | Wilmslow Senior U18 Colts |
| Sunday, 10/02/2019 - Conference League - Senior B |
| Altrincham Kersal Senior U18 Colts | 7 | 27 | Southport Senior U18 Colts |
| Sunday, 24/02/2019 - Conference League - Senior B |
| Southport Senior U18 Colts | 5 | 8 | Kirkby Lonsdale Senior U18 Colts |
| Sunday, 03/03/2019 - Conference League - Senior B |
| Heaton Moor Senior U18 Colts | 12 | 0 | Southport Senior U18 Colts |
| Sunday, 10/03/2019 - Lancashire Colts: Frank Morgan U18 Cup |
| Southport Senior U18 Colts | 10 | 7 | Kirkby Lonsdale Senior U18 Colts |
| Sunday, 17/03/2019 - Lancashire Colts: Frank Morgan U18 Cup |
| Southport Senior U18 Colts | 20 | 5 | Aldwinians Senior U18 Colts |
| Sunday, 17/03/2019 - Conference League - Senior B |
| Vale of Lune Senior U18 Colts | 0 | 0 | Southport Senior U18 Colts |
| Sunday, 24/03/2019 - Senior Bowl |
| Southport Senior U18 Colts | 44 | 10 | Wirral Senior U18 Colts |
| Sunday, 31/03/2019 - Senior Bowl |
| Blackburn Senior U18 Colts | 3 | 11 | Southport Senior U18 Colts |
| Sunday, 14/04/2019 - Lancashire Colts: Frank Morgan U18 Cup |
| Leigh Senior U18 Colts | 28 | 35 | Southport Senior U18 Colts |
| Sunday, 05/05/2019 - Senior Bowl |
| Aldwinians Senior U18 Colts | 16 | 15 | Southport Senior U18 Colts |