Craig Richards' 22nd try of the season helped Newport to cling to the top of
the Welsh Premier Division with a nervous 20-17 win at fifth-placed
They had the advantage of a first-half wind at their backs, but a late try to Quins centre Emyr Jones meant his side turned only 11-14 down at halftime.
The sides entered the final 10 minutes locked at 17-all and not for the first time this season, Newport fly-half Griffiths kept his nerve to slot the winning goal.
Neath kept in touch with Newport with a 35-12 victory at bottom-placed Ebbw Vale, with their cause being helped by two penalty tries.
Cardiff gained a 25-5 victory at home to Cross Keys with prop Martyn Madden
making his debut as a replacement; third-placed Aberavon defeated an
out-of-form Pontypool 26-8 with the Division's leading scorer Jamie Davies
scoring 11 points to take his season tally to 226.
Caerphilly came back from 7-13 to pip Swansea 17-16, complete the double and overtake them in the table.
Llanelli's hopes of climbing out of the bottom four weren't helped by an 18-30
loss to Bedwas at Stradey Park, while Pontypridd's solid season continued
with a 27-21 victory at Llandovery.
Wales Under 20 travel to Newcastle on Friday to face England at Kingston Park. With the likes of Jack Dixon and Ashley Evans returning to the squad, it's arguably the strongest side head coach Byron Hayward has put out in the tournament so far. WRU TV previews the game with Defence Coach Richard Hodges and captain Steffan Hughes.
Wales head coach Warren Gatland gives an exclusive interview to WRU TV after naming his side to face England in the RBS 6 Nations at Twickenham on Sunday. Gatland has recalled British & Irish Lions duo Jonathan Davies and Alun Wyn Jones to his side while Rhys Webb retains his place at scrum half.
Scrum half Rhys Webb and lock Jake Ball both made their first Wales starts in last Friday's win over France at the Millennium Stadium. They talk exclusively to WRU TV's Luke Broadley about their experiences of the day.
Wales Women's Head Coach Rhys Edwards has made three changes to his side to face France at Aberavon on Sunday, where he expects his side to be given a tough time against one of the best teams in the world.