The Ospreys under 16s booked their place in the final of the WRU Age Grade Championship courtesy of a bonus point victory over Blues North at Llandarcy.
Meanwhile it was heartache for Blues South who missed out on a place against the Scarlets although they won, again, at Tredegar, 19-15 against the Dragons.
A Gerin Eldred try for the Dragons left the South trailing 5-0 at the interval; but a rousing second half performance saw the visitors home, if only just.
James Benjamin bagged a second try for the Dragons with Ethan Davies converting and adding a penalty for good measure. However, when the South discovered the level of control that had taken them into contention going into the game, they crossed for the only time through prolific scorer Osian Davies.
Gareth Thompson, the side's leading scorer this season, converted the try and made sure that the South were at least in with a chance of reaching the last two, with three penalties and a drop goal.
John Richards, team manager at the Blues South, said; "We gave it our best shot and can be pleased with our effort this season.
"To the credit of the Dragons, they might not have had a place in the final to play for, but the threw everything at us. It was a strong game and very enjoyable."
Meanwhile the Ospreys booked their place in the final with coach David Jones' side running out comfortable 35-3 winners over Blues North.
Lewis Montague gave the North an early lead with a penalty before the Ospreys cut loose and scored five tries, including two from the second row Dewi Parry.
His first helped the hosts into a 7-3 interval lead and after crossing for a second 10 minutes into the second half, the Ospreys made sure of maximum spoils with further tries from Matthew Jenkins, Evan Yardley and Sam M Davies.
Outside half Sam Davies kicked five conversions to put the icing on a fine team performance.
The Scarlets, who went into their final game against the Dragons with a 100 per cent record, almost came unstuck as the visitors produced an outstanding display at Parc y Scarlets.
The Dragons dominated the first half and turned around six points to the good courtesy of two penalties.
After the interval, the Dragons maintained the intensity level, but ill discipline started to creep into their game. The Scarlets closed the gap with a try from scrum half Gareth George with Jordan Williams, who had already kicked a penalty, converting.
The Dragons again struck with a brace of penalties and an unconverted try, but the Scarlets made sure of a 17-17 draw thanks to a late try from Daniel Thomas that Williams converted from wide out.
The Under 16 Regional Championship final between the Ospreys and the Scarlets will take place at St Helens, Swansea at 7.15 on Wednesday 10 February. Tickets are £3 for adults, free entry for Under 16s. Spectators are kindly requested to enter St Helens via Bryn Road.
British and Irish Lions captain Sam Warburton is looking forward to bringing together players from Ireland, Scotland, England and Wales for the biggest challenge of their careers - a series against world champions, New Zealand.
For the fifth year running, Wales referee Nigel Owens will be in charge of proceedings at Judgement Day V at Principality Stadium. It promises to be 'extra special' for the Wales' favourite ref, as he will be making his 150th appearance in the league.
There will be no shortage of inside knowledge from Bowl Finalists Caerphilly and Amman United when they face each other on Sunday at National Finals Day. Caerphilly hooker Rhys Cleverly knows the Principality Stadium pitch better than most as a matchday groundsman, while Amman United can look to Wales' record try scorer Shane Williams for some helpful advice.
Two hundred and 40 teams competed in the inaugural Urdd WRU 7s held at Pencoed last week with Welsh internationals Steff Andrews and Jasmine Joyce impressed with the talent on display, as was Urdd chief executive, Sioned Hughes.
The countdown is on for Judgement Day V as tickets for the big day at Principality Stadium soar through the 50,000 mark. Players and coaches alike are bursting at the seams to play in the double header with Dragons coach Kingsley Jones claiming there is a 'real buzz' about the event.
WRU TV went behind the scenes when the four regions got together to test their skill set for the BBC's Scrum V Live rugby show, at the WRU National Centre of Excellene in the build up to Judgement Day V. Blues' Matthew Morgan was one of the stars of the show while the Dragons' Cory Hill proved a surprise package...the full set of results will be revealed on tv screens on matchday
Wales assistant coach Richie Pugh is confident his side can cause a few headaches in the Hong Kong Sevens this weekend. In a tough group, Wales kick off their campaign against New Zealand on Friday before playing Japan and Fiji, who are chasing their third consecutive Hong Kong title, on Saturday.
Bedwas had to overcome a stubborn Carmarthen Quins side before winning the Foster's Challenge Cup final in Bridgend with a 23-18 victory. Bedwas captain Nicky Griffiths pays tribute to his side who have claimed the club's first piece of silverware in the modern era.
Team coach Brett Davey is aiming to keep his unbeaten run in cup finals at Principality Stadium intact when his side take on Amman United in the WRU Bowl final, after he guided Caerphilly to a 20-14 win against Cilfynydd in the semi-finals.
Penallta are hoping to go one step further than last season when falling to Bedlinog in the WRU Plate Final. After a titanic struggle against Nant Conwy, they have given themselves a great chance, after a hard fought 18-13 semi-final victory.
The unique jeopardy of Judgement Day V has been described by stars from Cardiff Blues, Ospreys, Scarlets and Newport Gwent Dragons who will face each other in the annual double-header at Principality Stadium on 15th April.