While Brecon were winning 36-0 at Dowlais, Brynmawr, who finished eighth last season, were running in seven tries to stun their hosts. Josh Congreve and Nathan Preece got two each and Hudd, Craig Fillier and Dan Wall got the others.
The visitors raced into a 28-0 lead to bag a first-half bonus point before Nathan King, Alex Taylor and Dewi Voyle mounted a mini-revival with home ties that cut the gap to 11 points. But then Brynmawr hit back with three more tries and a penalty as outside half Dan Butler ended with 17 points.
Ystrad Rhondda were given a hard time by newly promoted Dinas Powys, who took the lead with a penalty and then hit back after conceding a try to reach half-time with a 10-3 lead. Ystrad lost centre Ryan Howells to a yellow card just before the break, but his midfield partner Adam Lewis power over for a try to give the unbeaten home team a 12-10 lead.
Wing Kurtis Williams then stretched the lead with his side’s third try and the race was on for the bonus point. Back row man Nathan Hughes brought it up with the fourth try and replacement Thomas Jeavons then eased home nerves with a fifth try to complete a 29-17 win.
It was pretty tense at newly promoted Llantrisant in Division 1 East Central. On a treacherous pitch two penalties just kept the home side ahead of Lewis Pearce’s solo penalty for Rumney at the break.
From 6-3 the home side took control with a try early in the second half and then added a penalty to deny a late try for the visitors from Joe Morgan and end with a 16-10 victory. Rhiwbina held onto their unbeaten record with a 19-3 win over previously undefeated Llanharan, while St Joseph’s are also three-from-three after a thumping 42-26 home win over Mountain Ash.
Dunvant are still top in Division 1 West after their 24-9 home win over Tycroes, while in Division 1 West Central, Maesteg Quins now have three successive bonus point victories to their credit after a 34-7 home win over second place Kenfig Hill.
Arthur Lennon helped himself to 21 points as Nant Conwy picked up a bonus point with a 41-13 win at Mold to remain one point clear of champions Pwllheli at the top of the Division 1 North table.
Lennon scored a try in each half and also added four conversion and a penalty. Carwyn Ellis also crossed twice and the other tries came from Ifan Jones and Sion Pringle.
Pwllheli were pushed all the way at home by Llandudno before emerging with a 14-8 victory to hold onto their unbeaten record, but newly promoted Llangefni were beaten for the first time as Caernarfon came up with a 28-22 triumph on the road to move level with their hosts on 10 points.