Caernarfon lost 60-8 to Ruthin last month, but a rousing display upset the North Division leaders, who fell by 14-3. Kelvin Morris kicked three penalty goals and though John Tudor scored one for Ruthin, their unbeaten tag went after a try by Caernarfon wing Arwel Davies.
Nant Conwy closed the gap at the top after defeating Dolgellau 21-3 while Pwllheli enjoyed a victory after
winning 20-12 against Wrexham.
East leaders Bargoed are going to be hard to catch after a 33-16 win against Crumlin extended their lead at the top to eight points. Andron Abdul, Ivor Bowen and Gareth Lerwin crossed for the leaders and Chris Lay converted all three and slotted over three penalties.
In South East, Gareth Howe sent Heol y Cyw to a 17-6 victory at the Athletic Ground against Penarth, by scoring all the 17 points, including a brace of
tries. Abercwmboi's match at Bedlinog was called off and Fairwater took advantage with a 24-18 win at Aberdare to move level at the top.
West leaders Loughor took a tumble when they were well beaten 22-5 at Pembroke Dock Quins. With Llanelli Wanderers losing at home to Laugharne 17-13, the
Quins move up into joint second spot while Betws just hung on to beat lowly Tycroes 8-7.
Only three points separated the top six sides in South West and leaders Alltwen slipped up after losing 24-20 at Cefn Cribbwr. Taibach made no mistake against visitors Glais to win 35-19, Cwmgors defeated Amman United 26-3 and Briton Ferry edged out close rivals Morriston 19-14.
Beating Merthyr has boosted Carmarthen Quins hopes of reaching a top eight spot in the Principality Premiership. Quins captain Haydn Pugh is delighted with his team's progress and is determined that everyone from the Under 6s through to the senior team, enjoys the ride.
When the Wales squad were asked to nominate individuals who played a big part in their early playing days, Wales and Dragons full back and wing Hallam Amos thought of his former Monmouth School rugby coach John Bevan.
Sam Cross and Luke Treharne have been named as co-captains of the Wales Sevens side as head coach Gareth Williams names his 12-man squad to play in the first leg of the HSBC World Series in Dubai next weekend.
Bedwas head coach Steve Law and players Nicky Griffiths and Alun Rees extol the virtues of the close knit club as they prepare to host third place RGC 1404 - who are one place head of them on the Principality Premiership points table - on Saturday.
Many of the Wales squad have said Diolch (thank you) to someone who played an important part in their early playing days by nominating them to be invited to the Wales v South Africa match. One person, Gowerton Comprehensive geography teacher Mr Dean Mason was nominated by two of his former pupils, Dan Biggar and Sam Davies.
The second WRU disability rugby pilot has been delivered, this time in Caerphilly schools, culminating in a festival at the Caerphilly Centre of Sporting Excellence, Ystrad Mynach tomorrow. Plans are in place to set up a Disability Rugby Club in Newbridge to provide long-term playing opportunities.
WRU TV: Hear from inside the Wales camp as Neil Jenkins discusses this weekend's clash with South Africa and how the squad are looking to put in a strong performance to round of the 2016 Under Armour Series