Blackwood are the new leaders of SWALEC Division One East after a comprehensive 43-13 win away at the students of UWIC.
Brothers David and Trevor James got two of the away side's five tries with Mark Birkby, Gareth Busby-Davies and Gareth Price, who also claimed 20 points from the boot, completing the rout.
They climb to the top at the expense of faltering Newbridge who slipped to a shock 32-24 defeat against bottom side Newport Saracens.
Two tries from Nathan Powell and one from wing Wesley Cunliff had helped the Saracens to a 22-10 half-time lead.
Newbridge came back stronger in the second-half with tries from Richard Powell and Gary Wilks but a second try from
Powell, sealed a surprise win to lift Newport off the bottom of the table.
Penalta are now the new side at the bottom of Division One East after a narrow 22-28 defeat to Llanharan.
In the remaining game of the day in Division One East Ystrad Rhonnda took a big step towards the safety of mid-table with an emphatic 41-8 win away at Bargoed.
Tredegar stay top of Division Two East after their 20-13 win against Bedlinog. Dafydd James and David Ford got the tries.
Abergavenny were the big scorers of the day in Division Two East as they ran in four tries to demolish Abergavenny 29-15.
Pill Harriers are chasing down the leaders in Division Three East, as they romped to a 37-5 win over Pontypool United, with two tries from Leighton Burrow.
Strugglers Abertillery pulled off the shock of the day beating high-flyers Croesyceiliog 29-5. With neither of the top two playing third-placed St Peters took full advantage in Division Three South East with a 24-6 win over Penarth.
Monmouth were the big scorers in Division Four East as they trounced Chepstow 30-10, and Heol Y Cyw maintained their stranglehold on Division Four South East with a narrow 13-8 win against Llantwit Major.
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.