Waunarlwydd had prop Gareth Richards red-carded in the second minute, but still amazed leaders Dunvant by gaining a 19-18 away win. Gary Diamond came off the bench and was a hero, while fly half Lee Jones had his first match back since breaking a finger against the same opponents earlier in the season and he scored a conversion, two penalties and two-dropgoals. Centre Matthew Wright scored a vital try.
Cwmllynfell joined Dunvant on 31 points after a last-gasp 12-11 win over Corus, while young flanker Rhys Shellard is following in the family tradition after gaining his fourth try in five matches for Abercynon in the East.
Wing Dan Bowcott joined in the try-scoring and Matthew Turner kicked five points as the 'Cynon' defeated Llantrisant 17-0, while Dinas Powys jumped up with a 44-5 beating of Penygraig with flyhalf Lloyd Smith getting one of the seven tries and kicking nine points.
Merthyr pulled off an important 10-3 win at Rhymney thanks to a brace of tries by wing Gethin Thomas against a Barry Davies penalty and are joined at the top by Builth Wells, who won 13-0 at Ystrad Rhondda.
WRU International Skills Coach Jason Strange is a busy man, combining the new role with that of Wales Under 20 attack coach, Ebbw Vale head coach and continuing to teach at Ebbw Fawr Learning Community.
Warren Gatland and Sam Warburton look ahead to this week's crunch RBS 6 Nations tie against France, where the Wales skipper in particular is keen to make his mark, as Paris has proved a bleak place for him in the past.
Following their historic win over England, Wales Under 20 suffered a narrow, 36-34 loss to their Scottish counterparts last weekend, despite outscoring them by five tries to three. Watch the match highlights and reaction.
WRU TV go behind the scenes with the Wales squad as they put the final touches in place ahead of the clash against Scotland at Murrayfield. Follow the squad on their captain's run, the kickers visit to Murrayfield and Neil Jenkins' press conference