There was no change at either end of Division Three West, leaders Ammanford winning 34-12 away to Llanelli Wanderers and relegation candidates Pembroke Dock Quins suffering a 46-0 hammering at home by Aberystwyth.
In Division Three South West the top three marched on with bonus point wins. Nantyffyllon overran Tonna 31-3, BP Llandarcy beat Banwen away 34-6 and Tondu dismissed Vardre 36-3. But fourth placed Aberavon Quins fell off the pace, slipping up 13-15 at home to Skewen.
Division Four West leaders Hendy lost 20-6 at Trimsaran and bottom-placed Neyland pulled off a 13-0 away victory against mid-table Pembroke.
Division Four South West leaders Bryncoch outclassed Neath Athletic 20-14 and Resolven won an important relegation fight 18-7 at Abercrave.
Cefneithen took the lead in Division Five West with a 12-8 away win against St Clears.
In Division Five South West, Bynea won the battle of the bottom two 17-5 against Swansea Uplands while top dogs Ystradgynlais beat Gowerton 41-8 to extend their lead.
And in Division Six West, Cimla crossed 12 times against Aberavon Naval to win 80-10.