Taffs Well remained on course for promotion to Division 3 South East, with a 26-11 win at Rhiwbina.
Tom Lowe gave the home side an early lead with a penalty goal, as Taffs Well took time to settle their nerves but a fine try by player-coach Steffan Edwards was just the tonic the side needed. Daryl Mota kicked the conversion for a 7-3 lead.
Lowe kept Rhiwbina close with his second penalty to leave his side 6-7 down at the break.
Mota , who was showing remarkable coolness for a player who had never kicked before, put over a penalty, and that was followed by a second try from Edwards, again converted by Mota, to increase the lead to 17-6.
Fullback Mike Baptiste then scored a fine solo try having run from deep in his own half. This was again converted by Moto, who had not missed a kick all afternoon.
But as Taffs Well ran from deep looking for their forth try and a bonus point, they were caught unawares and Richard Myers picked up the loose ball to score a consolation try for Rhiwbina.
Taffs Well's last two games are both against Pontyclun on Wednesday at home (kick off 7.15 ), and then on Saturday the return fixture at Pontyclun.
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.