UWIC showed no signs of summer rustiness as they romped to a six-try, 51-13 blitz over Newbridge to top Division One East.
The students, fresh from a three-month holiday, found life difficult in the first half as they took a slender 13-10 lead at half-time.
But their homework must have been done as 26 points from fly-half Simon Humberson including a second-half try, allowed them to get into their stride.
Blackwood also crossed half a dozen times through Gavin Rees, Gareth Rosby, Mark Guilt, Dean Gibbs, Mike Georgriu and a penalty try in their comfortable 43-7 win against Tredegar.
Ystrad Rhondda edged a high-scoring 11-try thriller to beat Merthyr 44-30 while Bargoed, inspired by 15 points from fly-half Steffan Jones and Rumney also grabbed bonus points at Beddau and Caerphilly respectively.
The games were much tighter in Division One West where only Whitland managed to ran in four tries for a maximum over Bridgend Athletic.
Aled Jones set the hosts on their way before Lee Glanville, Ryan Michael and Dion Thomas as well as 11 points from the boot of Aled Davies sealed a 31-10 success.
Trailing 17-0 at the break, Bridgend did muster a late period of pressure and Rod Jones scored a late consolation with Stuart Morris adding the conversion and a penalty.
Stuart Jenkins grabbed a brace of tries and Stuart Wall also crossed for Felinfoel in their narrow opening 24-21 win over Builth Wells.
The scores were tied 14-14 at the interval but a vital contribution of nine points from Jonathan Griffith swung the match in the home side's favour.
Corus emerged victors 33-18 at Llangennech who scored tries in either half from Chris Franches and Adam Warren, Carmarthen Athletic defeated Cwmyllynfell 20-10 and Tonmawr returned victorious 21-16 at Bonymaen.
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.