Mountain Ash closed the gap on Swalec Division Two East leaders Gilfach Goch thanks to a 38-10 triumph over third-placed Treorchy, while the league leaders suffered a shock defeat at the hands of Rhydyfelin.
Scrum -half Meiron Thomas crossed twice for tries while back-row duo Scott Davies and Chris Edmonds also touched down for Mountain Ash to secure a well earned victory. There was more good news for the men from Duffryn Pennar Parc when Rhydyfelin sprung a surprise on the league leaders, with a 25-21 victory. Mark Palmer, Lee Scarfe and David Gratton all scored tries for Rhydyfelin, while Gareth Walters scored the solitary try for the hosts.
Elsewhere there was basement battle between eleventh placed Newport Saracens and twelfth-placed Garndiffaith. The Saracens came out on top and ran in seven tries in a 47-12 victory. Blindside flanker, Carl Townsend, was a constant threat and stormed over for a hat-trick of tries. Townsend was joined on the scoreboard by Dale Leith, who grabbed his own brace, Tom Piper and Lewis Culverwell.
In Division Three East Abergavenny continued their march towards promotion with a 36-8 win over Tredegar Ironsides, William Harris, Stephen Evans and Gareth Carney among the scorers at Bailey Park.
Fleur De Lys also maintained their impressive run of form and keep the pressure on the league leaders thanks to 41-20, six try romp over Nelson. Scrum half Daniel Cook, no.8 Lee Taylor, wing Jamie Henthorn and centre due Ieuan Morris and Brett Green and crossed for tries.
There was a top-of-the-table battle in Division Four East where second-placed Talywain travelled to top side Abertillery BG. Talywain came out on top and sealed a hard-fought 15-13 victory. The visitors raced into a 12-3 half-time and held on for victory despite a second-half Aled Penn try for the hosts.
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