Builth Wells continue their battle at the top of Division Two West with rivals Bridgend Athletic after both sides recorded victories.
The Bulls secured a sixth straight win in the bonus-point 30-14 away win while struggling Penclawdd nearly pulled off a shock home triumph to inflict Bridgend's first defeat of the season but the visitors hung on for a tough 25-26 triumph.
After running in 13 tries last weekend, Aberystwyth failed to register a single effort in the 11-3 defeat to Division Three West league leaders Pontyberem.
Tondu top Division Three south-west after a bonus-point 32-10 win over Maesteg Quins while Aberavon Quins kept up the pressure with a 53-12 success over Seven Sisters.
Llandeilo took over from Brynamman at the top of Division Four West after cruising to a 37-0 victory at Cwmgors.
Brynamman's good start to the season came to a halt with a narrow 17-16 loss to Pembroke Dock Quins.
There was a shock 15-11 home defeat for Vardre in Division Four South West against Pontycymmer.
New leaders Resolven took full advantage and made it five wins from five with a 30-24 success on the road at Bryncoch.
Penlan remain top of the pile in Division Five West after running in 13 times in the 87-16 hammering of Llangadog while Nantgaredig also bagged a bonus-point win over Aberavon Naval.
Nearly 40 players were involved in the first Wales Under 18 training session of the season. WRU National Performance Manager Gethin Watts is excited at the potential shown by the group and expects the Regional Under 18 Championship to hone their skills even further.