Maesteg clinched promotion to Division One with a 39-23 victory over Loughor at Llynfi Road. The Division Two West leaders now have their eyes on clinching the title in the final weeks of the season.
Ryan Turner, Ross Powell, Kevin Ellis, Chris Owen and Chris Jones all crossed as the home side romped to a bonus point.
BP Llandarcy and Kidwelly are battling it out for the second promotion spot, with just one point separating them after the weekend's results. Llandarcy won 21-14 against Ammanford but their lead was halved after Maesteg romped to a 39-23 win against Loughor, Andrew Francis and Luke Marshall crossing twice.
Newcastle Emlyn are just a point away from sealing the Division Three West championship after a narrow win over strugglers Cardigan.
Emyr Jones, Carwyn Thomas, Iestyn Crompton and Alex Williams all crossed for the victors as they crept to a 23-21 bonus-point win.
Crymych kept up the pressure on second-placed Llandeilo with a 35-25 win at Haverfordwest. Tries by Gut Griffiths, Kenneth James, Rhodri Davies and a double by Gareth Davies means Crymych can still clinch promotion if Llandeilo slip up.
They did no such thing on Saturday as they met Penclawdd, thumping their hosts 51-22, scoring eight tries in the process.
Lampeter Town boosted their survival hopes with a fine 36-24 win at home to Morriston. Gary Davies, Dewi Williams, Tim Evans and Cerwin Gregson sealed the bonus point for Lampeter, who jump above Cardigan into 10th place.
In Division Three South West, Skewen still have their noses in front after a routine 34-5 triumph at home to Seven Sisters. Fly-half Richard Davies crossed twice, while there were also scores for wing Simon Jeremy, number 8 Edward Price and prop Rhys Jenkins as they took the bonus point.
Tondu are still in with a shout, as they lie two points behind after drubbing Brynamman. Doubles for wing Craig Fox and flanker Andrew Evans helped them to a seven-try, 45-10 win.
At the other end, Maesteg Quins may have already accepted their fate, but still managed a spirited win on their trip to Briton Ferry. Owen Richards, Geraint Evans and Tom Petty scored the tries as they won through, 27-18.
As the countdown continues for RWC2015, Tournament Chief Executive Debbie Jevans visited the Millennium Stadium to discuss preparations for the eight matches and reveal the positive news that 100,000 tickets for games at the home of Welsh rugby have sold in the last seven days.
Jason Harries is targeting a first win on the World Series circuit this season with Wales. The series returns to action this weekend in Dubai where Harries is part of a team hoping to build from its efforts in round one in October.
Wales skipper Jevon Groves says his side have addressed a few points from Gold Coast and aim to 'hit the ground running' in the next two rounds of the World Series, kicking off with this weekend in Dubai before heading off to South Africa next week.
Wales Sevens manager Steff Thomas is hopeful his side can build from a quarter-final spot in the opening round of the World Series in Australia when his side take part in the forthcoming double header in Dubai and South Africa.