Wales started badly; losing 31-5 against a strong Samoa outfit and did very few things right in that match.
A splendid try by James Lewis, after some fluent passing by his inside backs, showed a glimpse of what the side is capable of, but for the rest of the match, poor handling gifted the Samoans a bunch of tries.
"Yes, we were never in the game, to be honest. We just did everything wrong," coach Paul John admitted afterwards.
In their second match, Wales, sporting their yellow jerseys, played much better against the highly fancied Kenya.
Good defence held the Africans at bay for long periods, but the second seeds in the pool still managed to score first.
Two tries before the break had Wales 12-5 up at the interval.
Wales were awarded a penalty try when Rhodri McAtee was held up when in a try scoring position and Jason Tovey duly converted.
Their second came after splendid work by Dafydd Hewitt. He monstered a Kenyan in a tackle and from the resulting turnover David Evans scored a great try.
Kenya scored early in the second half when McAtee fell off a tackle to allow the Africans to draw even. A late Kenyan try, after some good interplay bluffed the Welsh defense, secured a 19-12 win.
Their last pool game, against the undefeated Portugal, resulted in the best match of the day.
Portugal scored early for a 5-0 lead, before Wales scored the try of the day. Started in their own 25 by Jimmy Norris, Craig Hill's score put his side in the lead.
That was extended after a great run by Chris Davies left two defenders in his wake and Wales were 10-5 up at the break.
A great dummy sold by James Merriman gave Wales their third try just after the break, but then Portugal, who earlier beat both Samoa and Kenya, started their comeback.
Weak tackling allowed the Portuguese to score and with 28 seconds remaining on the clock, they scored again to beat Wales 19-17.
"We had our chances against Portugal and Kenya, but did not take them," John said afterwards.
"It is very frustrating. We created the try scoring opportunities, but did not execute. And in those final minutes against Portugal, we lost our heads a bit and that allowed them back in the game. We will have to do better tomorrow," John said.