Scarlets wing Tomi Lewis touched down for his third try in two games as Wales Under-20s saw off the challenge of a dangerous Fijian side, 44-28, in Santa Fe.
Lewis followed up his double against France with a strong finish before half-time, one of six tries scored by Gareth Williams’s side.
The win wasn’t enough to see Wales progress to the semi-finals, with Argentina’s stunning victory over defending champions France pushing Wales down to third in the pool.
But it means the side can look forward with confidence to next week’s fifth-to-eighth place shootout.
“It was a good game, Fiji brought an off-loading game that we weren’t used to, but I thought the boys adapted well and it was a good win,” said Lewis, who scored on his Scarlets senior debut against the Dragons last season.
Lewis, of course, is no stranger to the free-running, expansive style of the islanders from his time on the sevens circuit.
The 20-year-old added: “I came off at half-time and told Ryan (Conbeer) ’it is just like sevens, you have got to wrap round them and stop them getting that off-load away’. That is their game, they are so dangerous.
“The words at half-time were not to play them at their own game and the boys pulled through in the second half. It was a good win.”
As well as Lewis, Scarlets forwards Jac Price, Jac Morgan and Iestyn Rees all started against Fiji, while prop Kemsley Mathias, lock Morgan Jones and wing Ryan Conbeer came off the bench.
Flanker Tommy Reffell, scrum-half Dafydd Buckland, skipper Dewi Lake, replacement prop Ben Warren and full-back Ioan Davies also crossed for tries, with fly-half Cai Evans landing 14 points from the tee.