Pontypridd overcame two yellow cards in the second half to notch a third successive win in the Principality Premiership as they beat Cross Keys 28-11 at Pandy Park.
Two second half tries from centre Gavin Dacey added to Ponty's 13-3 interval lead to keep them out of danger, although when Keys flanker Scott Matthews crossed for a try to cut the gap to 8-13 anything seemed possible.
But the visitors kept their nerve, held their line, even though they lost both Wayne O'Connor and Tom Young to the sin-bin, and emerged victorious. Outside half Simon Humberstone ended the game with 18 points thanks to a try, two conversions and three penalties.
James Loxton and Luke Ford raced away for Cardiff's tries as they recovered from their 14-10 defeat at Llandovery last weekend with a 27-9 victory at Bedwas. Outside half Ceirion Thomas kicked 13 points and Ford also chipped in with a long range penalty.
Carmarthen Quins ran in three tries in their 26-12 home win over Aberavon. Centre Dylan Morgan, No 8 Rory Gallagher and wing Rhys Thomas crossed for Quins and Craig Evans kicked 11 points.
Teenage full back Steffan Evans picked up his third Man of the Match award in succession for Llanelli as he raced over for a decisive second half try in his side's 26-20 win over Newport at Rodney Parade. Prop Rhys Thomas and flanker Dan Thomas got the other Llanelli tries and Nick Damjamovic added 11 points with the boot.
Newport were ahead 10-9 at the break after impressive centre Tyler Morgan had crossed for the first try of the game. Ethan Davies added the conversion and a penalty in the first half, while a penalty try after the break was converted by Matt O'Brien, who also added a penalty.
Wales reached their first semi-final since 2013 in the opening round of this season's HSBC World Rugby Sevens Series in Dubai. WRU TV's Graeme Gillespie recaps on what proved to be an eventful tournament
Wales and Ospreys back row James King, who came through the North Wales age grade system, nominated North Wales Regional Community Rugby Manager Marc Roberts, in the WRU's 'Diolch' initiative where squad players thanked those who played a part in their rise to the top.
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