Llantrisant remain top of Division Two East after beatings Fleur de Lys by a 21 point margin.
Gavin Groves, Jonathan Williams and Ian Worgan ran in three tries for the league leaders in a 28-7 victory.
Tredegar jumped to second in the table after routing Mountain Ash 28-0 away from home.
All the scoring came in the second half with the visitors notching a bonus point through their four tries, two of which came from Jamie Henthorne.
The other two teams making up the top four, Gilfach Goch and Brynmawr, drew 10-10 in their clash at Welfare Park.
Bedlinog were another side who picked up a bonus point win, crossing five times in a 36-12 win at Treherbert.
Elsewhere Ynysybwl beat Abergavenny 17-12 and Abercynon won 23-8 at Rhydyfelin.
New Tredegar picked up their first win of the season in Division Three East, beating local rivals Rhymney 18-6.
Two second half tries from Dewi Winstone and Steve Osbourn were enough to lift the home side off the bottom of the table.
They rise above Abertillery Blaenau Gwent, who were defeated 22-11 by leaders Nelson, and Cwmbran, who lost 32-25 at Gwernyfed.
In a battle of the bottom two in Division Four East Risca thrashed Pontllanfraith 35-0, picking up their first league win of the season and with it their fifth bonus point.
The local derby between Rhiwbina and St Joseph's was won 10-3 by the hosts, with Danny Hobbs scoring the winning try for the Squirrels.
Centre Andy Farrell lived up to his famous name as he scored two of Usk's four tries in their 28-21 win over RTB Ebbw Vale in Division Five East.
Trinant clinched a losing bonus point as they came back from a 17-0 half-time deficit against Talywain, narrowing the scoreline to 17-13 by the end.
Callum Jones and Leon Probert crossed for Talywain in the first period.
Hartirdge made it two wins in two games in Division Six East, beating the morning leaders Crickhowell 26-6.
Blackwood Stars capitalised on Crickhowell's defeat by beating Markham, who started the day second in the table, 22-10 to take top spot on try difference.
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