Scarlets lock Dominic Day made sure Llanelli held onto pole position in the Principality Premiership.
Day crashed put the league leaders on course for a 27-23 victory over Aberavon with the game's first try.
Luke Richards added the conversion and penalty but Llanelli had to come from behind after trhe second-placed Wizards led 16-10 at the break through Richard Thomas and Jamie Davies.
Matthew Jacobs and Craig Shingler scored the tries that kept Stradey Park on song.
Neath motored into second place with an emphatic 62-20 win over Cross keys thanks to a second half rout at the Gnoll.
Newport romped to to a ten-try win over lowly Llandovery. Newport Gwent Dragons youngsters Jason Tovey and Gethin Robinson weighed in with tries as the Black and Ambers cruised to a 67-5 win at Rodney Parade.
Swansea failed to build on a promising first half and missed out on a bonus point in a 23-15 win over Bedwas.
Wales Sevens ace Jason Lewis brought Pontypridd crashing at Ebbw Vale, 13-3, and Geraint O'Driscoll's 26-point haul was not enough to save Pontypool from a 42-31 loss at Glamorgan Wanderers.
As the countdown continues for RWC2015, Tournament Chief Executive Debbie Jevans visited the Millennium Stadium to discuss preparations for the eight matches and reveal the positive news that 100,000 tickets for games at the home of Welsh rugby have sold in the last seven days.
Jason Harries is targeting a first win on the World Series circuit this season with Wales. The series returns to action this weekend in Dubai where Harries is part of a team hoping to build from its efforts in round one in October.
Wales skipper Jevon Groves says his side have addressed a few points from Gold Coast and aim to 'hit the ground running' in the next two rounds of the World Series, kicking off with this weekend in Dubai before heading off to South Africa next week.
Wales Sevens manager Steff Thomas is hopeful his side can build from a quarter-final spot in the opening round of the World Series in Australia when his side take part in the forthcoming double header in Dubai and South Africa.