Ynysybwl suffered their first defeat of the season in Division Two following their heart-breaking 22-20 loss at Newport Saracens.
Simon Skinner’s late penalty ended Bwl’s three-match winning run and put them into third place in the table.
David Davies had already grabbed a brace of tries for the home side to add to Mark Bale’s strike.
Instead, Llantwit Fardre hit the summit with a gutsy 27-26 victory over Rhydyfelin while Treorchy also leap above Ynysybwl into second spot with a six-try romp over Garndiffaith.
Abergavenny top Division Three after grabbing a five-point victory in their 31-3 home win against Croesyceiliog but Rhymney are hot on their heels following a comprehensive 34-3 bonus-point win over Blaina.
Greg Plant, Matthew Chard, Ioan Lane and Liam Buckley scored the tries to gain maximum points for the home side.
Fly-half Steve Lang grabbed 14 points in an impressive display which included three penalties, a drop goal and conversion.
New Tredegar scored six of the best in Division Four on their way to a comfortable 37-7 win at home to St Josephs.
But home dominance did not sweep the division as Old Illtydians, Risca and Talywain all recorded away wins at Machen, Abertillerty BG and Monmouth.
