RGC 1404 secured a remarkable away win at Rumney after coming back from 21-0 down to claim a 24-21 bonus point victory. The Division One leaders endured a torrid 15-minute period in the first half after conceding three converted tries to the hosts in quick succession.
But the northerners went over before half time and added a further three tries in the second half to stay four points clear of nearest rivals Ystrad Rhondda, who have a game in hand.
Rhydyfelin scored a staggering 18 tries against bottom-of-the-table Tredegar with hat-tricks apiece for Lloyd Peart, Ross Lucas and Rhys Chinnuck all contributing towards a 114-10 scoreline.
In Division Two, Bedlinog remain at the top despite dropping points at fourth-placed Senghenydd - the match finished as a 6-6 draw.
Rhiwbina ensured a close end-of-season run-in after they moved to third position after brushing aside Fleur De Lys in a 29-8 home win. There are now only four points separating leaders Bedlinog and their opponents today, Senghennydd, with Nelson and Rhiwbina occupying the second and third spots respectively.
Elsewhere, Abertillery BG edged closer towards the Division Three title after securing a bonus point victory against second-placed Newport HSOB. The league leaders, who are now nine points ahead at the top with only six games remaining, went over four times to earn a crucial 27-7 away win.
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.