However the Gnoll side still have to hope that the Arms Park youngsters lose both their remaining games to enable them to snatch the title. Neath have to play Llanelli away while Cardiff are at home to Pontypridd and away to Bridgend.
Wing Richard Carter again impressed crossing for a brace of tries and fly half Dylan Pugh maintained his recent league form by scoring a try as well as landing a penalty and a conversion. The forwards secured a penalty try while flanker Steve Tandy sealed Neaths eleventh victory in the league with a second half try.
Michael Hook replied with a brace of penalties and conversions as well as landing a drop goal while full back James Rowles and centre Scott Williams crossed for tries.
The Gnoll U'21s had secured a weekend victory after they defeated a Combined Services side by 19pts to 10 last sunday.
Lloyd Hayden crossed for a brace of tries while Shaun Connor added both conversions as Neath lead by 14pts to nil at the interval. A further try from lock Craig Jones secured an impressive win for the home side.
Members of the WRU Board were invited to attend a training session where sumo wrestlers were being put through their paces and as WRU President Dennis Gethin reveals, the Tokyo visit will live long in the memory.
Representatives from the WRU and the Welsh Assembly government were invited to meet some of Japan's leading businesses. WRU chief executive Roger Lewis and Wales head coach Robin McBryde were among the guests.
Following Wales Under 20's second win of the Junior World Championship over Scotland, a lot of hard work is still required ahead of the Pool decider against Argentina on Thursday. WRU TV took a look behind the scenes.
Wales Under 20 coach Danny Wilson, captain Ellis Jenkins and winger Owen Jenkins give their post match reaction after recording a comfortable win over Samoa in the opening game of the Junior World Championship in France.