Ebbw Vale extended their lead at the top of the Swalec Championship and secured local bragging rights thanks to a narrow 13-19 victory over Pontypool.
Tries from Carl Meyer and Wes Cunliffe gave the Steelmen a 3-13 lead at halftime, and despite a Steve Pooler score a Ronny Keynes try secured the points.
At the other end of the table Beddau squeezed past Bridgend Athletic 17-15. Glen Slater scored twice as Beddau cruised to a 14-point lead but Bridgend rallied, with Steve Lewis missing a last minute conversion to secure the draw.
There was another tight game at Blackwood, with Alex Jenkins' last minute try giving Narberth a 30-28 victory.
Bargoed also won at the death as they beat Cardiff Met 16-17, with the whistle going straight after fly-half Joel Prosser converted Lee Peterson's try.
There was a more straightforward affair at the Welfare Ground as Newbridge sailed to a comfortable 31-0 win over bottom of the table Bonymaen, with Richard Powell converting all four tries.
Twenty points from Cody Rees gave Llanharan a 34-27 win over Tata Steel, a win which moves them clear of The Saints.
Tata Steel outscored Llanaran four tries to three, with Ross Pritchard going over twice, but the boot of Rees guided Llanharan to victory.
Elsewhere, RCG 1404 beat Tondu easily away from home. RCG scored eight tries, with braces for Hopkins and Hugh Grundy, as the Waterwheelers were easily dispatched.
Wales U20 captain Tom Phillips and performance psychologist Dr Rich Neil explain why spending three days at Monmouth RFC has further strengthened the togetherness of the squad ahead of the #WorldRugbyU20s
Merthyr were officially crowned champions of the SSE SWALEC Championship at Dowlais on Saturday where captain Andy Powell paid tribute to his side who have earned promotion to the Principality Premiership
WRU chief executive Martyn Phillips hosted the second meeting of the WRU Youth Board last weekend ahead of the Judgement Day IV regional double-header. Tthe board, made up of 15 under-21-year-olds from around Wales, heard presentations from head of participation Ryan Jones, policy and integrity manager Jeremy Rogers and national women's rugby manager Caroline Spanton, with Pro Rugby Wales CEO Mark Davies also on hand to hear the range of views aired.
Skipper Nathan Huish believes it was pure self belief from his side which saw Bedlinog snatch victory from Penallta in the SSE SWALEC Plate final at Principality Stadium, as WRU TV's Liz Jones discovers.
Ebbw Vale captain Damien Hudd picked up the biggest accolade of the night at the 11th Principality Premiership Awards Evening held at Principality Stadium, after leading his side to the title for the first time.
Welsh Rugby Union Group Chief Executive Martyn Phillips has congratulated the winners following the 11th Principality Premiership Awards Evening at Principality Stadium and vowed to continue to invest in the growth of the league.
Ebbw Vale clinch the Principality Premiership while Wales U20 hold a special training camp in Monmouth, in this week's Principality Welsh Rugby Union Podcast. We hear from Steelmen skipper Damien Hudd, as well as Wales U20 coach and captain, Jason Strange and Tom Phillips, WRU group chief executive Martyn Phillips, Wales wing Hallam Amos, WRU national performance manager Gethin Watts and Wales U20 consultant Dr Rich Neil of Cardiff Metropolitan University.