In the only game of the day in Division One West Maesteg grabbed a 24-15 win over mid-table rivals Carmarthen Athletic in a game which will be remembered for four yellow cards handed out to the home side.
A try from Nathan White and a penalty from Robert Evans had helped Maesteg to a 10-8 half-time lead, despite referee Greg Morgan brandishing yellow cards to Steve Tremlett and Paul Clapham for killing the ball.
Tries from Chris Bowridge and Rhodri Milson put the game beyond Carmarthen after the break, before sin-bins for Dean Ronan and David Dyer saw Maesteg reduced to 13 men for 10 minutes in the closing stages.
A Maesteg spokesperson said: "I've never seen a refereeing performance like that in 30 years. But despite that, we produced an amazing display full of guts and courage."
Leaders Builth Wells fell to a shock 21-10 defeat against strugglers Penclawdd, and Mumbles came out on 18-16 winners in a thrilling game between the two bottom of the table rivals.
Aberystwyth continued their dominance at the top of Division Three West, running in six tries on their way to a 36-9 demolition of Tumble. Crymych were the other big scorers of the day, with a 33-0 win against Laugarne.
Aberavon Quins remain on top of Division Three South West after their 39-5 win against Briton Ferry. Second-placed Tondu are hot on their heels after scoring nine tries as they thrashed Seven Sisters 59-0.
Division Four West leaders Llandeilo are now red hot favourites for the title after a convincing 37-0 win over second-placed Tenby put them eight points clear at the top.
Bryncoch stay top of Division Four South West after they grabbed a 15-8 away win against Pontycymmer.
Cefneithin showed why they are top of the table with a massive 102-3 win over strugglers Swansea Uplands. The home side scored 16 tries in an emphatic display.
In the only game in Division Five South West, New Dock Stars beat Llandybic 24-22.
Angus O'Brien has quickly settled into the Wales Sevens squad after solid performances in Hong Kong and Japan. With two rounds remaining in Glasgow and Twickenham on the World Series, WRU TV's Graeme Gillespie chats to the rising star.
Wales winger Luke Morgan has established himself as one of the deadliest finishers on the Sevens World Series. WRU TV's Graeme Gillespie catches up with him on the eve of this weekend's round in Glasgow.
All roads lead to Cardiff on Sunday for the SSE SWALEC Finals Day at the Millennium Stadium. Cambrian Welfare tackle Ystradgynlais in the Bowl final, Ystrad Rhondda play Newcastle Emlyn in the Plate final while defending champions Pontypridd face Bridgend in the Cup final.
WRU Chief Executive Roger Lewis, Deputy Minister for Culture, Sport and Tourism Ken Skates and WRU Chairman Gareth Davies earlier this week launched a new competition in conjunction with the WRU unveiling its archive room.
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.