The Swedes picked up their pace in the second half by rolling 491 in the fourth game to take over the running as the Colombians stumbled to a lowly 390 to slip behind the Swedish pair with Australia's first pair of Jamie-Lee Spiller and Bree MacPherson moving up to third.
Hermansson and Wegner managed to extend their lead to 24 pins with another superb 492 in the fifth game. Colombia recovered with 470 to remain in second while Korea gradually made their way up to third after rolling a big game of 501.
Sweden ended disappointly with 394 for a total of 2706 and slipped down to third. Colombia finished next with 439 for a total of 2727 and almost finished in the lead but Korea's Son struck out for 254 while Lee ended with 216 for a 470 final game to snatch the lead with 2729, just two pins ahead of Colombia.
Australia registered the highest single game of the squad with 526 in their fifth game and then ended with 452 to claim fourth position with 2608. The second squad will take to the lanes at 14.00 for their six-games preliminaries. The combined scores of both squads will determine the top four pairs advancing to the semi-finals.
Photos by Terence Yaw in Las Vegas, USA.