Wales flyhalf Rhys Patchell, seen here being tackled by Bautista Delguy, scored 20 points with the boot against Argentina on Saturday. Photo: Nicolas Aguilera/AP

SANTA FE, Argentina – Wales completed their first Test series victory in Argentina since 1999 on Saturday when they overran the Pumas 30-12 in a one-sided match in Santa Fe.

Josh Adams and Hallam Amos grabbed tries each side of halftime, and Rhys Patchell kicked 20 points for Warren Gatland’s side to complete back-to-back wins, following a 23-10 triumph over the home side last week.

Wales were the strongest side from the off, and raced into a 19-0 lead thanks to Adams’ try and four penalties from Patchell.

Bautista Delguy got a try back for Argentina moments before halftime, but the Welsh tore into the Pumas again in the second half, with two quick penalties from Patchell and a converted try from Adams.

Julian Montoya put a more respectable sheen on the scoreline when he ran over for a try with the last move of the game, and Nicolas Sanchez converted.

The only blemish for Wales came in the dying seconds, when Ross Moriarty was shown a red card for choking.

The result means that Argentina, who face Scotland next week, have won only two of their last 17 internationals.