Carmarthen Quins and Blackwood won SWALEC League Division One West and East respectively - with Quins clinching promotion to the Principality Premiership.
The Carmarthen Park club would have had to face off with their Gwent opponents in an end-of-season promotional play-off had it not been for stadium issues.
As Blackwood's Glan-Y-Afon ground does not meet the WRU's Premiership standards, Quins bypass any prospective play-off and go straight into the top division.
To make matters sweeter for Quins, they clinched the title at town rivals Carmarthen Athletic, thanks to a narrow 17-15 win at Five Fields.
In an end-to-end match where the lead regularly changed hands, Quins scrum-half Ricky Richards went over to effectively earn the visitors the title.
Quins treasurer Alan Jones lavished praise on the title winning team, but vowed they were not finished yet. He said: "It has been a team effort with all our squad playing their part.
"We have won all our league games this season and are now aiming to win the remaining two games. We have never gone through a season unbeaten, so we are keen to win 22 from 22."
Next week they host second place Tonmawr, who look in good shape to deny them this honour after they thrashed Maesteg 55-0, scoring nine tries.
In the East, Blackwood were presented with the title in front of their own fans after their match with Bargoed. Gareth Risby-Davies, with two, Gavin Rees and David Brake were the Blackwood try scorers in a comfortable 32-21 win.
Despite being denied promotion, nothing was dampening spirits at Glan-Y-Afon. Team manager Craig Clements said: "We had a two-year plan for our young squad, and achieved our goal within this time. We are now hoping for the club to push on next year and win the league title again."
Wales Head Coach Rob Howley talks to WRU TV's Sebastian Barrett about the 36-man squad he has just named for the forthcoming Under Armour series, which includes two uncapped players, Ospreys duo Sam Davies and Rory Thornton.
Head coach Rowland Phillips is deligthed he can now call BT Sport Cardiff Arms Park home for his Wales Women's side, who launch their international season next month with games against Scotland and UK Armed Forces in the heart of the capital city.
Wales Sevens star Sam Cross has put his home town club of Brynmawr on the map after winning a silver medal at the Rio Olympics with Team GB. His club have now honoured him by naming their players bar after him, as WRU TV discovered at the official launch, recently.
One of the newest members of the Principality Premiership, Bargoed admit it's proving to be a steep learning curve at the highest level, but are determined to become a force to be reckoned with. WRU TV visited the club last weekend when they took on Llanelli.
Table-topping Aberavon travel to north Wales to tackle RGC 1404 as both teams defend unbeaten starts to the season in the Principality Premiership. WRU TV's Graeme Gillespie visited the Wizards to see how their preparations were going for the game of the weekend.
The Half a Game initiative is currently sweeping across Wales and proving a major success. The scheme aims to give every young player at least half a game every weekend. WRU TV recently visited a festival in Narberth where clubs have fully embraced the initiative.
Both Bargoed and Swansea were seeking their first win of the Principality Premiership season this afternoon. It proved a fruitful day for the hosts - not only did they win, but Bargoed claimed a try bonus point.
Cardiff managed to keep their unbeaten record at home intact, but only just as Bridgend made them work extremely hard before the Blue and Blacks secured a hard fought Principality Premiership win at the BT Sport Arms Park last night.
Former Wales back row Andy Powell gives a guided tour of The Wern, home of Merthyr RFC, who are determined to prove a lot of people wrong and make their mark in their first season in the Principality Premiership.