This result left Aberavon three points clear at the top after they won 24-5 at Newbridge and at the bottom, Treorchy scored three tries, yet lost 52-20 to Whitland and Rumney also scored three tries, but defeated Bonymaen 23-14.
Llanharan gained revenge for a Principality Cup loss to Glamorgan Wanderers, as they gained a 28-13 success and Carmarthen Quins swept Tondu aside 49-21, despite a first-minute try by young Tondu full back Lee Byrne.
Three tries by flanker Craig Clement helped Blackwoodovercome Tredegaqr 35-5 and Llandovery proved too strong at Beddau, winning 46-17. Cross Keys gained a useful 26-11 win over Bedwas at Pandy Park.
In Division Two, bottom clubs Abertillery and Hirwaun both were winners with the 32-11 scoreline at Abertillery Park being a surprise for visitos Dunvant and Hirwaun flanker Darren Jones gained the only try of the match as they beat off Abercynon by 13-9.
Second-placed Carmarthen Athletic came unstuck by 23-13 at Brynmawr; leaders Llangennech crushed Rhymney 50-18 with some splendid back play and third-placed Maesteg scored four tries to defeat Cwmavon, while six second-half penalties by Nathan Hopkins took the students of UWIC to a 18-17 win at Corus (PT), who scored three tries.
Penygraig regained the 3 East lead with an eight-try romp over Risca as Croesyceiliog struggled to gain a 15-7 success at Tonyrefail, while in 3 West, Felinfoel increased their lead after beating Seven Sisters 30-3.
Brecon held on at the top of 4 East with a 38-15 win at Pontypool Utd that included a try by Sam Walsh, brother of New Zealander Steve Walsh, who controlled the recent Wales-England match. In 4 West, Bryncoch stay ahead after a comfortable 39-0 win at Haverfordwest.
Nant Conwy went a step nearer the 5 North title after a hard-fought 16-12 in at Ruthin and in 6 North, leaders Bala beat Bro Ffestiniog 27-14.
Newport Saracens and New Tredegar won at home, but Old Illtydians fell 26-13 at Barry in 5 East; Llandeilo won at Ammanford, but Hendy dropped the verdict in a 23-13 home loss to Gowerton in 5 West.
The only unbeaten club in Wales, Nantymoel, won 42-5 at Pontyclun in 5 Central, yet are behind Banwen, who won 23-17 against Tylorstown and in 6 Central, Abercwmboi stepped nearer the title after crushing Taibach 42-0.
In 6 East, Fairwater hang on at the top after winning 24-16 at Crumlin, though Bargoed are breathing hard on them after defeating Cardiff HSOB 23-14, while Llandaff North hang on to the 7 east lead with a one-point win at Llantwit Major, yet Bettws loom large after beating Llandaff 18-3.
The 7 West title is between Pontyates and Cefneithin and after they met on Saturday with Cefneithin winning 10-0 away, Pontyates lead by two points, but have played two more matches than their opponents.
Cwmgwrach are almost there in 7 West, with a three-point lead over Tonna and two matches in hand after beating Cwtwrch by 34-10.