Llandovery's Phil Day is tackled by Carmarthen Quins' Alex Pickersgill
With the top two in the Principality Premiership not playing until Easter Monday, Llandovery took full advantage by beating the Carmarthen Quins at Church Bank to go top of the table.
But the Drovers were unable to pick up a bonus point, crossing for just two tries in a 23-12 win over Quins, whose own title hopes are all but over.
Centre Matthew Jacobs and second row Matthew Harbut touched down for the hosts, and second half scores for the Quins - through fullback Daniel Evans and centre Jason Harries - were not enough for the visitors to avoid leaving empty-handed.
Llanelli's bid for championship glory also lives on as they thrashed Swansea 42-22 at Parc y Scarlets.
Winger Bowdy Davies grabbed a brace of tries and number eight Craig Price, scrum half Joe Heatley, centre Nick Reynolds and winger Iolo Evans crossed for one each.
Thanks to touch downs from wing Lewis Williams, centre Nicky Harwood and replacement number eight Steffan Jones, Swansea had only trailed 30-22 with five minutes remaining. But two late tries from the hosts put the gloss on a big win.
Meanwhile, Pontypridd entertained vociferous visiting supporters at the Arms Park as they trounced Cardiff 43-20. Ponty scored four tries, through Matthew Nuthall, Gavin Dacey, Dan Godfrey and Rhys Downes, but outside half Lewis Williams pulled the strings and kicked all four conversions, four penalties and a drop goal for a personal tally of 23 points.
Pontypool's 25-12 win at the Bridge Field over Bedwas ensured Pooler leapfrogged their hosts, who replace them in 13th place. Tries for Dan Robinson (2) and Gareth Williams gave the visitors a morale boosting win.
Elsewhere, eight-try Bridgend condemned lowly Tonmawr to yet another defeat at the Brewery Field as the Ravens ran out 57-24 winners. The Pitmen are now a huge 31 points adrift of Bedwas.
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