Head to Head
| Galles - Premiership | 2018/05/05 15:00 | RGC 1404 v Merthyr | L | 13-20 |
| Galles - Premiership | 2017/05/13 13:30 | Merthyr v RGC 1404 | L | 35-7 |
| WRU Challenge Cup | 2017/03/25 17:00 | RGC 1404 v Merthyr | W | 24-20 |
| Galles - Premiership | 2017/02/04 14:30 | RGC 1404 v Merthyr | W | 25-24 |
| Galles - Premiership | 2016/12/27 14:30 | Merthyr v RGC 1404 | W | 19-23 |
Home History
| Galles - Premiership | 2018/09/21 18:15 | Pontypridd v RGC 1404 | W | 18-32 |
| Galles - Premiership | 2018/09/15 13:30 | RGC 1404 v Ebbw Vale | L | 12-19 |
| Galles - Premiership | 2018/09/08 13:30 | Swansea v RGC 1404 | W | 26-34 |
| Galles - Premiership | 2018/09/01 13:30 | RGC 1404 v Neath | W | 37-19 |
| Galles - Premiership | 2018/05/19 13:30 | Bargoed v RGC 1404 | W | 31-35 |
| Galles - Premiership | 2018/05/12 13:30 | RGC 1404 v Newport | W | 43-36 |
| Galles - Premiership | 2018/05/05 15:00 | RGC 1404 v Merthyr | L | 13-20 |
| Galles - Premiership | 2018/04/28 13:30 | Llandovery v RGC 1404 | L | 28-26 |
Away History
| Galles - Premiership | 2018/09/22 13:30 | Merthyr v Aberavon | L | 14-22 |
| Galles - Premiership | 2018/09/16 13:30 | Llanelli v Merthyr | W | 7-26 |
| Galles - Premiership | 2018/09/08 13:30 | Merthyr v Bedwas | W | 27-7 |
| Galles - Premiership | 2018/09/01 13:30 | Cardiff v Merthyr | W | 18-24 |
| Galles - Premiership | 2018/05/15 18:15 | Merthyr v Aberavon | W | 48-19 |
| Galles - Premiership | 2018/05/12 13:30 | Bargoed v Merthyr | W | 7-35 |
| Galles - Premiership | 2018/05/09 18:30 | Ebbw Vale v Merthyr | W | 14-17 |
| Galles - Premiership | 2018/05/05 15:00 | RGC 1404 v Merthyr | W | 13-20 |