Blues North under 16s warmed up for this month's WRU Regional Championship final against the Ospreys with a 35-20 victory over the Dragons at Abercynon.
Having swept through the pool stages of this season's competition without defeat, the North struck another blow for the region with five tries and 10 points from the boot of outstanding outside half Ian Smerdon.
Smerdon, James Woods and Lloyd Peart out the hosts into a 25-5 lead with Dean Gunter and Chris Phillips adding second half triws to secure another bonus point victory.
The Dragons helped themselves to first half tries from Jack Flower and Chris Attwell with Craig Howell and Chris Moseley scoring after the interval.
In the other game, Blues South gained an honourable draw, 17-17, against the Scarlets at Narberth. Steffan Phillips and Rhys Gingell crossed for tries for the home region with James Stephenson adding two conversion and a penalty for good measure.
However, Blues South who are rooted to the foot of the table, grabbed a share thanks to tries from Dan Fish and Ed Doe plus two conversions and a penalty from Loren Quick.
The final Blues North v Ospreys will take place at Rodney Parade on February 27th.
Cardiff Blues travel to Myreside on Friday to take on Edinburgh Rugby in a crucial Guinness PRO12 clash, and with Wales facing Scotland in the RBS 6 Nations at BT Murrayfield on Saturday, it promises to be a weekend of non-stop rugby action at the Scottish capital. Here are some useful advice to Cardiff Blues travelling supporters.
To celebrate the opening of the newly refurbished Guinness PRO12 Pack Bar, the world famous Irish brewer will be offering supporters free pints of the black stuff ahead of Saturday's clash with Ulster.
'TACKLE' - the first-ever joint community rugby initiative between the four professional teams in Wales has been launched (today Weds 19th October) bringing an inspiring new rugby education programme to young people in Communities First areas. Partners in the project were joined by Wales' star rugby internationals Sam Warburton (Cardiff Blues), Alun Wyn Jones (Ospreys), Gareth Davies (Scarlets) and Hallam Amos (Newport Gwent Dragons), for the launch at Aberdare Community School.
A last minute Jarrod Evans penalty ensured Cardiff Blues Premiership Select finished their British and Irish Cup campaign on a high, with a 24-21 victory over London Scottish at Athletic Ground on Friday.