Newport picked up a massive five points in the Principality Premiership title hunt, as their 34-20 win at Aberavon exploded into life in the second-half.
After a 3-3 stalemate in the first period, winger Nathan Williams crossed for the first of the Black and Ambers four tries.
Full-back Alan Awcock ran in six minutes later before centre Tom Riley notched their third just after the hour.
But Aberavon, who have faded after the topping the table in the first half of the season, did not cave in and came back with two tries of their own.
Centre Ashley Beck scored with 15 minutes remaining before winger Richard Carter went over with seven minutes left.
But Newport refused to crumble and pushed for their fourth try, to earn them a crucial bonus point, which duly came in stoppage time thanks to replacement Craig Hill, who was part of Wales's Sevens World Cup winning team.
Llandovery were made to sweat right until the end of their slender 16-15 win against Cross Keys, who came inches away from denying them a crucial victory.
The Drovers got off to the perfect start, with winger Ifan Evans crossing for a try in the first minute, which was converted by outside-half Tomas Marks.
Marks went on to kick three first half penalties, although Cross Keys winger Nathan Trowbridge went over straight from the restart after his first kick.
Trailing 16-5 at half-time, the Keys went out after the break with it all to play for and James Leadbetter slotted over a penalty six minutes into the second period.
Llandovery flanker Lloyd Phillips was sinned binned on 53 minutes, and with the man advantage allowed centre Gareth Maule the space to pull a try back for Cross Keys.
Leadbetter converted but missed a golden opportunity with two minutes remaining, hitting a penalty against the post.
Jimmy Norris grabbed a hat-trick as Bedwas completed a stunning second-half fight back against Pontypridd to win a thriller 41-27.
he Newport Gwent Dragons academy star lit up Bridge Field as Bedwas roared back from 22-5 down at half time with six tries.
Lewis Williams, prop Pat Palmer and skipper Nathan Strong barged over just before half-time for Pontypridd before Stuart Thomas, Matthew Pizey, John Welsh and Stuart Phillips hit back.
Glamorgan Wanderers escaped with narrow victory after Ebbw Vale's Andrew MacLaughlan missed a late conversion.
Second-row Nick Eaves looked to have grabbed a draw for the Steelmen when he touched down late on, shoved over by the rest of the Ebbw Vale pack.
But full-back MacLaughlan, who had taken over the kicking duties from injured fly-half Aaron Bramwell, scuffed a straight-forward conversion to let Wanderers off the hook for a 13th win of the season, the final score being 31-29.
And Pontypool hauled themselves off the foot of the Welsh Premiership table for the first time this season with a hard-fought 26-20 victory over fellow strugglers Bridgend.
Kiwi No8 Grant Webb barged over twice in the second half, including the winner five minutes from time, to complete the win at Pontypool Park.
That proved enough to edge ahead of Bridgend in the table according to the number of wins, after the visitors picked up a losing bonus point.
On Friday night, Swansea gained revenge on local rivals Neath when they beat them 36-8 at St Helens.
The Neath All-Blacks had put the Whites out at SWALEC Cup five days earlier, winning 32-16 semi-final at the city's other ground, the Liberty Stadium.
But Swansea turned the tables on the reigning Premiership champions, realistically ending any faint hopes they have of a title challenge, as they ran in four tries to earn a bonus point from their near neighbours.
Winger Rhys Jones scored two first-half tries for the Whites, who lead 18-8 at half-time despite opposite wing David Evans crossing for Neath.
Damian Karauna and Chris Shelmerdine ran in within the first ten minutes of the second half to put the result beyond doubt.
Karauna kicked a drop goal to seal a 36-8 win, Swansea's first victory over Neath since January 2004.
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.