After almost beating Cardiff and then pounding Aberavon, the RGC 1404 shattered Tonmawr with a seven-try, 43-9 victory.
RGC 1404 head coach and former Wales Union and League international, Clive Griffiths, described his side's win as: "An awesome performance with some outstanding tries. No one should underestimate this result.
"Some of the tries were top drawer and we showed our intent to play with some kick and go, and running the ball. We built on the victory at Aberavon and this result against a top class Premiership side and to nil them on tries was extremely pleasing."
Tonmawr opened the scoring with a penalty from David Flanagan but the North Walians gained a try by lock Luke Cudmore that Conor Braid converted.
Tom Sneddon scored the second after a reverse pass from Braid had the crowd on their feet. Braid converted.
Another penalty from Flanagan brought Tonmawr back in the game but a superb try went to Ben Stemalseck and again Braid converted.
The second half started with Flanagan landing his third penalty before Stemalseck danced over for his second try and Jeremy Kyne soon followed. Then, Cudmore gained his second try with Braid converting and Richard Hopkins ran in for the final try.
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.