The Blues North and the Ospreys under 16s kicked off the new WRU Regional Championship on a winning note last night
The North, who enjoyed an outstanding season last time around, ran out 34-19 winners against the Scarlets at Merthyr, whilst the Ospreys recovered a 10-0 half time deficit to defeat the Dragons 21-17 at Llandarcy.
Owain Rees, Elliott Parker, Darren Harris, Jack Dando, captain Callum Thomas and Shaun Webber crossed for the Blues' tries with outside half Lewis Williams converting two of the half dozen.
Gethin Hunter and Curtis Morris scored the Scarlets' tries with Luke Treharne weighing in with seven points from a pair of conversions and a penalty.
North age grade manager Gafyn Cooper, said: "When you consider that we struggled in the first season or two, I think the coaches and the players can be proud of this continued success.
"We did well last season and this was another excellent start from the boys."
Meanwhile at Llandarcy, it was the Dragons who held the upper hand for much of the game after striking first with Bradley Hill crossing for a first half try and Thomas Haynes adding a conversion and penalty.
Hill bagged a second try late in the game - Michael Davies converting - but by that time, the Ospreys had secured an opening night victory courtesy of tries from Alex Evans, flanker Will Thomas and Nathan Brooks.
Tom Carpenter made sure of victory with three conversions and team manager Graham Court was delighted with the victory.
He said: "They are an impressive side and were deserving of their lead. However, all credit to our lads, they battled back and made sure that it was a winning start to the season."
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.