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.
WRU TV were on hand at the launch of a major new commercial deal with WRU and Mercedes-Benz South Wales (part of the Sinclair Group), which sees the family company become an official supplier to the Welsh Rugby Union
On the back of the recent Women's Rugby World Cup, the WRU has launched a revitalised Women's and Girls domestic seasonal structure, and the future is looking bright.
Go to www.wru.co.uk/tryourgame for more information
Roger Lewis talks to WRU TV at the announcement of a new £60 million Rugby Services Agreement (RSA) which provides a new and positive contractual relationship between the WRU and its four Regions for the next six years has been agreed.
The Welsh Rugby Union has announced a major new sponsorship deal with Gullivers Sports Travel which will make the UK's leading, and longest established, multi-sport tour operator, an Official Supplier for the rest of the decade.
Having taken part in seven World Cups as a player and coach, Liza Burgess hopes to go out in style this afternoon when Wales take on Australia in the Play-off for seventh and eighth place in the Women's Rugby World Cup in Paris.