Llanharan again kicked their heels as the other unbeaten club, Maesteg went to Beddau and won 29-6, while a late Whitland burst took them to a 50-10 win against Rumney on Cardiff University's ground and Narberth won well, by 35-14 at Blackwood.
Llangennech scored five unconverted tries in a 25-10 victory at Brynmawr, the students of UWIC beat Bonymaen 27-17 and Treorchy lock Jamie Summers
returned from a spell with Aberavon to score three tries in a 30-10 win over Tondu.
Tredegar moved to Abertillery Park, but two tries from skipper Stuart Jarman could not save them from a 39-18 beating from Carmarthen Athletic.
Fleur de Lys gained revenge for their Konica Minolta Cup defeat to Abercynon with a solid 26-13 victory in the East. And to make the win taste all the better, Fleur move above their opponents to third place in the table with Glen George, the player-coach and former Wales cap, scoring one of the three tries.
Builth Wells took full advantage of Merthyr's inactivity by winning 30-16 at Rhymney netting five tries; Llantrisant pulled away in the second half for a
resounding 48-17 success at Dinas Powys and Ystrad Rhondda beat Hirwaun 29-9 to move further away from the lower reaches.
In the West, bottom club Aberavon Quins again failed to appear and they have only completed 11 league games this season, at least five less than other clubs in this division.
Tonmawr held on to beat Newcastle Emlyn 19-18 to stay level second with Corus who won 22-8 at Cardigan. Vardre climbed some much-needed points with a 16-13 victory at Felinfoel but Birchgrove fell to their 14th defeat of the season after a home defeat by Cwmavon.
Cwmllynfell's promotion hopes took a knock after a 26-21 loss at Bridgend Athletic and Pencoed hung on to record a 17-14 win at Waunarlwydd.
Ebbw Vale captain Damien Hudd picked up the biggest accolade of the night at the 11th Principality Premiership Awards Evening held at Principality Stadium, after leading his side to the title for the first time.
Wales assistant coach Robin McBryde is predicting a tough battle against England on Sunday despite the fact they may not be considered to be at full strength. Players will be out to impress Eddie Jones which makes England a dangerous proposition, he says.
Wales U20 captain Tom Phillips and performance psychologist Dr Rich Neil explain why spending three days at Monmouth RFC has further strengthened the togetherness of the squad ahead of the #WorldRugbyU20s
Alongside Scarlets flanker James Davies and Cardiff Blues centre Cory Allen, three Wales Sevens core players have made the extended training squad for GB Sevens. Wales Head coach Gareth Williams tells WRU TV's Graeme Gillespie why Luke Treharne, Sam Cross and Luke Morgan earned selection in the initial training squad for Rio.
Wales Sevens head coach Gareth Williams tells WRU TV's Graeme Gillespie he has had to overcome a number of injuries before naming a competitive squad for this weekend's penultimate round of the World Series in Paris.
Merthyr were officially crowned champions of the SSE SWALEC Championship at Dowlais on Saturday where captain Andy Powell paid tribute to his side who have earned promotion to the Principality Premiership