| Wednesday, 22 August 2018 |
| Colts League AGM |
| Sunday, 26 August 2018 |
| Bank Holiday |
| Sunday, 2 September 2018 |
| League Week 1 |
| Broughton Park Senior U18 Colts | 12 | 52 | Leigh Senior U18 Colts |
| Burnley Senior U18 Colts | Liquidated Fixture | Wigan Senior U18 Colts |
| Bury Senior U18 Colts | Liquidated Fixture | West Park (St Helens) Senior U18 Colts |
| Clitheroe Senior U18 Colts | 26 | 31 | Northwich Senior U18 Colts |
| Colne & Nelson Senior U18 Colts | v | Recovery Week |
| Sunday, 9 September 2018 |
| League Week 2 |
| Colne & Nelson Senior U18 Colts | Liquidated Fixture | Burnley Senior U18 Colts |
| Northwich Senior U18 Colts | 57 | 7 | Broughton Park Senior U18 Colts |
| Recovery Week | v | Leigh Senior U18 Colts |
| West Park (St Helens) Senior U18 Colts | Liquidated Fixture | Clitheroe Senior U18 Colts |
| Wigan Senior U18 Colts | 41 | 38 | Bury Senior U18 Colts |
| Sunday, 16 September 2018 |
| League Week 3 |
| Broughton Park Senior U18 Colts | Liquidated Fixture | West Park (St Helens) Senior U18 Colts |
| Burnley Senior U18 Colts | Liquidated Fixture | Recovery Week |
| Bury Senior U18 Colts | 0 | 20 | Colne & Nelson Senior U18 Colts |
| Clitheroe Senior U18 Colts | 31 | 17 | Wigan Senior U18 Colts |
| Leigh Senior U18 Colts | 62 | 14 | Northwich Senior U18 Colts |
| Sunday, 23 September 2018 |
| League Week 4 |
| Burnley Senior U18 Colts | Liquidated Fixture | Bury Senior U18 Colts |
| Colne & Nelson Senior U18 Colts | 3 | 31 | Clitheroe Senior U18 Colts |
| Recovery Week | v | Northwich Senior U18 Colts |
| West Park (St Helens) Senior U18 Colts | Liquidated Fixture | Leigh Senior U18 Colts |
| Wigan Senior U18 Colts | 67 | 24 | Broughton Park Senior U18 Colts |
| Sunday, 30 September 2018 |
| County Cup Round 1 |
| Sunday, 7 October 2018 |
| League Week 5 |
| Bury Senior U18 Colts | v | Recovery Week |
| Clitheroe Senior U18 Colts | Liquidated Fixture | Burnley Senior U18 Colts |
| Colne & Nelson Senior U18 Colts | 17 | 10 | Broughton Park Senior U18 Colts |
| Leigh Senior U18 Colts | 59 | 0 | Wigan Senior U18 Colts |
| Northwich Senior U18 Colts | Liquidated Fixture | West Park (St Helens) Senior U18 Colts |
| Sunday, 14 October 2018 |
| League Week 6 |
| Burnley Senior U18 Colts | Liquidated Fixture | Broughton Park Senior U18 Colts |
| Bury Senior U18 Colts | 5 | 22 | Clitheroe Senior U18 Colts |
| Colne & Nelson Senior U18 Colts | 7 | 30 | Leigh Senior U18 Colts |
| Recovery Week | Liquidated Fixture | West Park (St Helens) Senior U18 Colts |
| Wigan Senior U18 Colts | Home Walkover | Northwich Senior U18 Colts |
| Sunday, 21 October 2018 |
| League Week 7 |
| Broughton Park Senior U18 Colts | 10 | 15 | Bury Senior U18 Colts |
| Clitheroe Senior U18 Colts | v | Recovery Week |
| Leigh Senior U18 Colts | Liquidated Fixture | Burnley Senior U18 Colts |
| Northwich Senior U18 Colts | 35 | 0 | Colne & Nelson Senior U18 Colts |
| West Park (St Helens) Senior U18 Colts | Liquidated Fixture | Wigan Senior U18 Colts |
| Sunday, 28 October 2018 |
| Recovery Week |
| Burnley Senior U18 Colts | Liquidated Fixture | Northwich Senior U18 Colts |
| Bury Senior U18 Colts | 10 | 50 | Leigh Senior U18 Colts |
| Clitheroe Senior U18 Colts | 55 | 0 | Broughton Park Senior U18 Colts |
| Colne & Nelson Senior U18 Colts | Liquidated Fixture | West Park (St Helens) Senior U18 Colts |
| Recovery Week | v | Wigan Senior U18 Colts |
| Sunday, 4 November 2018 |
| County Cup Round 2 |
| Sunday, 11 November 2018 |
| League Week 8 |
| Sunday, 18 November 2018 |
| League Week 9 |
| Sunday, 25 November 2018 |
| League Week 10 |
| Sunday, 2 December 2018 |
| Recovery Week |
| Sunday, 9 December 2018 |
| League Week 11 |
| Sunday, 16 December 2018 |
| Recovery Week |
| Sunday, 23 December 2018 |
| Recovery Week |
| Sunday, 30 December 2018 |
| Christmas Break |
| Sunday, 6 January 2019 |
| League Week 12 |
| Sunday, 13 January 2019 |
| Recovery Week |
| Sunday, 20 January 2019 |
| League Week 13 |
| Sunday, 27 January 2019 |
| Recovery Week |
| Sunday, 3 February 2019 |
| County Cup Quarter Finals |
| Sunday, 10 February 2019 |
| League Week 14 |
| Sunday, 17 February 2019 |
| Recovery Week |
| Sunday, 24 February 2019 |
| League Cup Round 1 |
| Sunday, 3 March 2019 |
| Recovery Week |
| Sunday, 10 March 2019 |
| League Cup Round 2 |
| Sunday, 17 March 2019 |
| Recovery Week |
| Sunday, 24 March 2019 |
| League Cup Quarter Finals |
| Sunday, 31 March 2019 |
| Recovery Week |
| Sunday, 7 April 2019 |
| League Cup Semi Finals |
| Sunday, 14 April 2019 |
| County Cup Semi Finals |
| Sunday, 21 April 2019 |
| Easter Break |
| Sunday, 28 April 2019 |
| County Cup Finals |
| Sunday, 5 May 2019 |
| League Cup Finals |