Wales went down 59-7 to New Zealand in Johannesburg in the third-fourth match of the first IRB Under-21 World Cup.
South Africa defeated Australia 24-21 in the final, while favourites New Zealand had to be content with third place.
The only Welsh score came from Swansea full-back Gareth Swales, who crossed for a try that Cardiff fly half Nicky Robinson converted.
New Zealand scored eight tries, all converted, and an early penalty goal.
Nearly 40 players were involved in the first Wales Under 18 training session of the season. WRU National Performance Manager Gethin Watts is excited at the potential shown by the group and expects the Regional Under 18 Championship to hone their skills even further.
The WRU officially unveiled the new pitch today in time for Wales to take on Australia in the first of the Dove Men Series autumn international matches this Saturday. Head Groundsman Lee Evans and colleague Craig Campbell reflect on the 15-week project and look ahead to a pitch perfect future at Millennium Stadium.