Carmarthen Quins President Brian Jones warned against complacency after his side went 16 points clear at the top of the Division One West table with a 17-9 win away at second-placed Tonmawr.
Jones said: "There's a long way to go in the season and Tonmawr will catch us unless we start scoring more tries. Tonmawr have been massive this season and are scoring eight or nine tries a game, we need to start doing that too to pick up bonus points.
"We are very happy to be top of the table but this is a two horse race and they're scoring tries and we're not. They gave away too many penalties today but they're still a very good side."
Meanwhile Carmarthen Athletic went third with a 41-21 win against bottom side Dunvant, who remain without a win this season and Narberth had to cling on to edge out Llangennech in a gripping 38-31 win, after leading 27-0 at half-time.
Bargoed are the new leaders of Division One East, but they had to stage a dramatic comeback to beat bottom of the league Newport Saracens 32-28. Greg Gallon and Danny Jones each got two second half tries for Bargoed to leave Newport without a win and bottom of the table.
Merthyr slipped into second as they lost 24-16 to fourth-placed Blackwood. Two second-half tries from Mark Birkey sealed the win for Blackwood who dominated throughout. Llanharan were the big scorers of the day, running in seven tries away at Rumney in a 43-5 victory. Newbridge kept up the pressure at the top with a narrow 34-28 win over the students of UWIC.
Each side grabbed four tries a piece and in a thrilling game.
In the other games Ystrad Rhonnda picked up a bonus point in their 22-7 victory against Beddau and strugglers Penalta lost 19-15 away at Caerphilly.
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.
Cardiff managed to keep their unbeaten record at home intact, but only just as Bridgend made them work extremely hard before the Blue and Blacks secured a hard fought Principality Premiership win at the BT Sport Arms Park last night.
Former Wales back row Andy Powell gives a guided tour of The Wern, home of Merthyr RFC, who are determined to prove a lot of people wrong and make their mark in their first season in the Principality Premiership.
Wales Sevens head coach Gareth Williams looks back on the Rio Sevens success where he helped GB win silver. He believes the successful campaign is a huge boost to his Welsh squad as they prepare for another World Series, as WRU TV's Graeme Gillespie discovers