RGC 1404 secured a remarkable away win at Rumney after coming back from 21-0 down to claim a 24-21 bonus point victory. The Division One leaders endured a torrid 15-minute period in the first half after conceding three converted tries to the hosts in quick succession.
But the northerners went over before half time and added a further three tries in the second half to stay four points clear of nearest rivals Ystrad Rhondda, who have a game in hand.
Rhydyfelin scored a staggering 18 tries against bottom-of-the-table Tredegar with hat-tricks apiece for Lloyd Peart, Ross Lucas and Rhys Chinnuck all contributing towards a 114-10 scoreline.
In Division Two, Bedlinog remain at the top despite dropping points at fourth-placed Senghenydd - the match finished as a 6-6 draw.
Rhiwbina ensured a close end-of-season run-in after they moved to third position after brushing aside Fleur De Lys in a 29-8 home win. There are now only four points separating leaders Bedlinog and their opponents today, Senghennydd, with Nelson and Rhiwbina occupying the second and third spots respectively.
Elsewhere, Abertillery BG edged closer towards the Division Three title after securing a bonus point victory against second-placed Newport HSOB. The league leaders, who are now nine points ahead at the top with only six games remaining, went over four times to earn a crucial 27-7 away win.
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