RGC 1404 secured a remarkable away win at Rumney after coming back from 21-0 down to claim a 24-21 bonus point victory. The Division One leaders endured a torrid 15-minute period in the first half after conceding three converted tries to the hosts in quick succession.
But the northerners went over before half time and added a further three tries in the second half to stay four points clear of nearest rivals Ystrad Rhondda, who have a game in hand.
Rhydyfelin scored a staggering 18 tries against bottom-of-the-table Tredegar with hat-tricks apiece for Lloyd Peart, Ross Lucas and Rhys Chinnuck all contributing towards a 114-10 scoreline.
In Division Two, Bedlinog remain at the top despite dropping points at fourth-placed Senghenydd - the match finished as a 6-6 draw.
Rhiwbina ensured a close end-of-season run-in after they moved to third position after brushing aside Fleur De Lys in a 29-8 home win. There are now only four points separating leaders Bedlinog and their opponents today, Senghennydd, with Nelson and Rhiwbina occupying the second and third spots respectively.
Elsewhere, Abertillery BG edged closer towards the Division Three title after securing a bonus point victory against second-placed Newport HSOB. The league leaders, who are now nine points ahead at the top with only six games remaining, went over four times to earn a crucial 27-7 away win.
Welsh players and management joined Deputy Minister for Sport Ken Skates at the Pierhead Building, Cardiff Bay earlier this week to reveal the Union's pioneering school-club hub initiative has been so successful the project will now almost double the scale of the original project.
The Scarlets, Newport Gwent Dragons, Cardiff Blues and the Ospreys look ahead to Judgement Day III which sees the Blues take on the Ospreys (2.30) and the Dragons tackle the Scarlets (4.45pm) at the Millennium Stadium tomorrow afternoon.
Ystradgynlais and Ynysddu played out a titanic struggle at Taffs Well in the SSE SWALEC Bowl semi-final. At the end of the game neither team could be separated after a 15-15 stalemate but Ystradgynlais go through on try count.
Blues strike first in JD III battle - Newport Gwent Dragons lock Andrew Coombs, WRU referee Dylan Llyr Jones and Cardiff Blues hooker Matthew Rees decide dressing room allocations for Judgement Day III
Wales Under 18 captain Calum Haggett has received a conditional offer to read Biomedical Science at St Anne's College, Oxford. WRU chairman Gareth Davies went to meet Calum and Coleg y Cymoedd Principal Judith Evans to wish him luck in his exams and pass on some of his personal experience.
Dodgy tattoos, carthorses, Avatar and soft chins are revealed by Wales Sevens players Tom Williams and Sam Cross as they profile the Wales Sevens squad taking part in Hong Kong this weekend in the latest round of the HSBC Sevens World Series.