Loughor remain on top in Division Two West despite only managing a draw at home to Mumbles in a day of slip-ups at the top of the tables.
Their 17-17 stalemate gave Bridgend Athletic the chance to take their place at the top, but they lost 25-20 at home to mid-table Ammanford and are leapfrogged into second place by Buith Wells who managed to keep their nerve and win 26-21 against Kidwelly.
Gorseinon remain bottom despite putting in a good performance against BP Llandarcy, they eventually went down 23-17.
Pontyberem's winning streak came to a dramatic end in Division Three West, as they lost their first game in 13 with a 16-13 defeat against Haverfordwest.
That allowed Aberystwyth to close the gap with a 13-5 win over Cardigan, with Matthew Green scoring the winning try.
Division Three South West leaders Tondu also slipped-up, losing 7-6 to lowly Briton Ferry allowing Skewen to close the gap to just one point with a 8-3 victory over Maesteg. Aberavon Quins are hot on their heels after a bonus point 45-0 win against Kenfig Hill.
Llandeilo made it 11 wins from 11 in Division Four West with a 36-7 win over Betws, while their closest rivals Tenby United fell to a 36-14 defeat against fellow high-flyers Brynamman.
Bryncoch also remain undefeated at the top of Division Four South West after they emerged 48-5 victors over Neath Athletic. They look red-hot favourites for the title as their two closest challengers Resolven and Ystalyfera both lost.
Cefneithen stay top of Division Five West with a 17-10 win over Furnace United and Abercrave continue their dominance in Division South West with a 58-7 win over Cwmtwrch.
Wales Head Coach Rob Howley talks to WRU TV's Sebastian Barrett about the 36-man squad he has just named for the forthcoming Under Armour series, which includes two uncapped players, Ospreys duo Sam Davies and Rory Thornton.
Head coach Rowland Phillips is deligthed he can now call BT Sport Cardiff Arms Park home for his Wales Women's side, who launch their international season next month with games against Scotland and UK Armed Forces in the heart of the capital city.
Wales Sevens star Sam Cross has put his home town club of Brynmawr on the map after winning a silver medal at the Rio Olympics with Team GB. His club have now honoured him by naming their players bar after him, as WRU TV discovered at the official launch, recently.
One of the newest members of the Principality Premiership, Bargoed admit it's proving to be a steep learning curve at the highest level, but are determined to become a force to be reckoned with. WRU TV visited the club last weekend when they took on Llanelli.
Table-topping Aberavon travel to north Wales to tackle RGC 1404 as both teams defend unbeaten starts to the season in the Principality Premiership. WRU TV's Graeme Gillespie visited the Wizards to see how their preparations were going for the game of the weekend.
The Half a Game initiative is currently sweeping across Wales and proving a major success. The scheme aims to give every young player at least half a game every weekend. WRU TV recently visited a festival in Narberth where clubs have fully embraced the initiative.
Both Bargoed and Swansea were seeking their first win of the Principality Premiership season this afternoon. It proved a fruitful day for the hosts - not only did they win, but Bargoed claimed a try bonus point.