Austrian skier Anna Fenninger romped to her first Winter Olympics gold medal in the ladies' super-G on Saturday.

The 24-year-old stormed down the tricky Rosa Khutor Alpine Center course in a time of one minute 25.52 seconds to seal victory by a comfortable margin.

Maria Hoefl-Riesch was the pre-event favourite after triumphing in the super combined earlier this week, but the German had to settle for silver after finishing 0.55secs adrift of Fenninger, while Nicole Hosp earned bronze.

Fenninger's success continued Austria's dominance in this event, with her compatriots Michaela Dorfmeister winning at Turin 2006 and Andrea Fischbacher succeeding her four years later in Vancouver.

''I only realised what had happened when I stood on the top of the podium,'' Fenninger said.

''My feeling is indescribable. I just hope the realisation will sink in the way I imagined it so I can properly enjoy myself by this evening.''

Kamil Stoch added the Olympic large hill ski jumping gold medal to the normal hill title he won last weekend.

The 26-year-old Pole finished just 1.3 points ahead of 41-year-old Japanese jumper Noriaki Kasai with an overall score of 278.7.

Peter Prevc completed the podium, finishing in third place, with a score of 274.8.

Charlotte Kalla produced a stunning last lap to propel Sweden to a gold medal in the women's cross country 4x5km relay.

Kalla entered the final lap 16 seconds behind the Finnish team, but skied the fastest lap of the race to overhaul Finland's Krista Lahteenmaki and Denise Herrmann of Germany, who claimed silver and bronze for their countries respectively.

Defending champions and pre-race favourites Norway finished outside the medals in fifth place.

Home favourite Alexander Tretiakov sent the partisan crowd into raptures in Sochi by emphatically becoming the first Russian to win a Winter Olympics men's skeleton gold medal on Saturday night.

The 28-year-old, who was a bronze medallist in Vancouver 2010, led by over half a second overnight, and although he conceded a fraction of ground in his first run of the evening, he would not falter, with Martins Dukurs taking silver and Matthew Antoine bronze.

A final run of 56.02 seconds was the fastest of the week and wrapped up victory in style for the reigning world champion, who recorded an overall time of three minutes 44.29secs.

Victor An became the first man to win four Olympic gold medals in short track when he stormed to victory in the 1000 metres final for Russia in Sochi.

As the home fans roared an exciting race at the Iceberg Skating Palace to its climax, the South Korean-born 28-year-old edged out team-mate Vladimir Grigorev to win with a time of one minute 25.325 seconds.

At 31, Grigorev became the oldest man to secure an Olympic medal in short track with a time of 1:25.399, with Sjinkie Knegt taking bronze in 1:25.611, the Netherlands' first Olympic medal in short track.

Zbigniew Brodka won Poland's first-ever Olympic speed skating medal, taking gold in the men's 1500 metres race by the narrowest of margins.

The 29-year-old held off Dutchman Koen Verweij by three thousandths of a second, with officials having to examine the exact split times after both skaters crossed the finish line with a time of one minute 45.00 seconds.

Canada's Denny Morrison added a bronze medal to the silver he won in the 1000m on Wednesday.

TJ Oshie scored the shootout winner to lead the USA to a 3-2 victory over hosts Russia at the Bolshoy Ice Dome.

Pavel Datsyuk opened the scoring after 29.15 and Cam Fowler dampened the extraordinary atmosphere when he equalised on 36:34, and when Joe Pavelski made it 2-1 to the US with a powerplay goal after nine minutes and 27 seconds of the third period, it was the Americans who looked set to take the honours again.

But the Russians were dominant, Datsyuk ending a spell of pressure by flipping an equaliser past US netminder Jonathan Quick, then Fedor Tyutin lashing what appeared to be the likely winner past Quick minutes later - only for the goal to be ruled out after extensive discussions between officials before Oshie settled things in the shootout.

In Saturday's other Group A fixture, Slovenia were 3-1 winners over Slovakia.

Rok Ticar, Tomaz Razingar and Anze Kopitar put Slovenia in control with three goals in six third-period minutes, before Tomas Jurco scored a late consolation.

In Group C, Sweden picked up their second win of qualifying with a 5-3 success over Latvia, while Switzerland edged the Czech Republic 1-0.

In the opening quarter-final of the women's ice hockey tournament, Sweden sprang a surprise by beating Nordic neighbours Finland 4-2 and will now face the United States in the semis.

Finland went ahead in the second period through Venla Hovi, but goals from Anna Borgqvist and Lina Wester gave Sweden the edge.

Emma Nuutinen levelled things up once more for the Finns, only for Emma Eliasson and Emma Nordin to send the Swedes into the last four.

However, Russia's hopes of challenging for a medal were ended with a 2-0 defeat at the hands of Switzerland, with the goals coming from Stefanie Marty and Lara Stalder.

Canada became the first team to qualify for the semi-finals of the women's curling competition after wins over Japan (8-6) and then Russia (5-3) took their 100 per cent record to seven matches.

China and Sweden look bound for the semi-finals of the men's event, with both sealing their sixth win from seven games. The Chinese saw off Russia 9-6, while the Swedes defeated Germany 8-4.