Petra Jaszapati of Hungary held a narrow lead approaching the home straight, only to be sent spiralling shoulder-first into the boards as South Korea's Kim Jiyoo and Lee Suyoun sped past in an irrepressible wave of speed to cross the line first and second.

But the duo - gold and silver medal winners respectively in the 1000m final - were then disqualified for impeding their opponent.

This meant Zang, who crossed the line third, took gold in 46.658 while silver went to Jaszapati despite her not having completed the race.

Most remarkably of all, Katrin Manoilova of Bulgaria, the winner of the earlier B-Final who was watching proceedings in the stands, then found herself promoted to bronze in what was her country's first medal of the Games.

Normal service resumed in the corresponding men's race, won by Hong Kyunghwan of South Korea at the Gjovik Olympic Cavern Hall.

He triumphed in 41.885 ahead of Japan's Kazuki Yoshinaga, who clocked 41.969, and Ma Wei of China, who managed 41.680.

Norway claimed a second gold in successive days at the Birkebeineren Stadium, this time in cross country when Thomas Helland Larsen avenged his defeat to South Korean Magnus Kim in the cross-country cross by winning the men's sprint classic.

Larsen reigned supreme in a thrilling race as he clocked 2:55.39 to edge cross victor Kim, who has a South Korean mother and a Norwegian father.

Bronze also went to the hosts thanks to Vebjoern Hegdal.

Cross-country cross silver medallist Johanna Hagstroem claimed the women's race in 3:19.55.

She crossed the line ahead of Russian Yuliya Petrova, with home favourite Martine Engebretsen taking bronze.

Germany's Tim Kopp claimed the first Nordic combined gold of the Games, triumphing in the 5km gunderson in a time of 13:31.4.

Ben Loomis took silver for United States in 13:36.6, while bronze was secured by Ondrej Pazout of Czech Republic in 13:39.3.

There was another German gold in the mised team luge, as Jessica Tiebel, Paul-Lukas Heider and the duo of Hannes Orlamuender and Paul Gubitz clocked a combined 2:52.520 to beat Russia and Italy into second and third.

Melanie Meillard of Switzerland ended this streak by winning the women's giant slalom, the only Alpine event of the day .

She rose from second to post a time of 2:33.28 and overhaul Katrin Hirtl-Stangassinger of Germany, who had to settle for silver with 2:33.34.

Bronze went to Meillard's teammate Aline Danioth, who won the Alpine combined event, with 2:33.95.