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American Lindsey Vonn takes a jump during training for the women's downhill race at the world alpine ski championships. ((Michael Probst/Associated Press))

Lindsey Vonn is feeling so good about her skiing that she felt comfortable standing up out of her tuck for the final 200 metres of Thursday's training run in Val d'Isere, France.

The American still managed to post the fastest downhill time on the Rhone-Alpes course — one minute 18.65 seconds — to best Marie Marchand-Arvier of France (0.38 seconds behind) and Andrea Fischbacher of Austria (0.52 seconds back).

Vonn is on a three-race winning streak, having won the super-G that opened the world alpine ski championships Tuesday and two World Cup races in Garmisch-Partenkirchen, Germany, last weekend.

"I just have a good feeling on my skis right now and I'm just relaxed, trying to execute the line," Vonn said. "Things are working well for me so far. But today was just a training run and I definitely wasn't skiing 100 per cent, so tomorrow there's definitely going to be more attack."

Vonn intentionally skipped several gates in the opening training session Wednesday.

"That was important for me to get one full run in before the race tomorrow," she said, looking ahead to Friday's super-combi race (CBCSports.ca, bold, 8 a.m. ET), which consists of a shortened downhill run and a slalom leg.

Britt Janyk of Whistler, B.C., was seventh and Emily Brydon of Fernie, B.C., was eighth. Kelly VanderBeek of Kitchener, Ont., finished 33rd.

The course was shortened to the super-G start due to wind and snow on the upper reaches of the track.

Swiss teenager Lara Gut placed fourth after leading Wednesday's opening training session, and Elisabeth Goergl of Austria, a possible challenger to Vonn in the super-combi, was fifth.

Nadia Fanchini of Italy crashed and injured her right knee.

Fanchini, who won her first World Cup race in a super-G in Lake Louise, Alta., in December, lost her edge on a sharp turn and slammed into the safety fencing at high speed. She got right up but appeared to be hurt. The Italian winter sports federation said it would decide Friday if Fanchini requires an MRI exam.

After the super-combi, a third training session is scheduled for Saturday, followed by the downhill race Sunday (CBCSports.ca, bold, 7 a.m. ET).

With files from the Associated Press