U.S. star Mikaela Shiffrin wins 6th slalom on home snow at Killington, beating Petra Vlhova

Mikaela Shiffrin built on her first-run lead to win a women's World Cup slalom Sunday for her record-extending career victory No. 90.

The American two-time Olympic champion pleased the home crowd by posting the fastest time in both runs, finishing in one minute 42.02 seconds and beating her Slovakian rival Petra Vlhova by 0.33 seconds.

"It's amazing to do this, especially here, with the home crowd," said Shiffrin, who is from Colorado but can almost consider Killington a hometown race because she honed her skills nearby at the Burke Mountain Academy as a teenager.

"It's just such a good vibe and there's a little extra intensity because we want this to be good for you guys to watch. I hope it was a good show," she addressed the spectators in a course-side interview.

Shiffrin gathered her 90 wins from 254 starts on the World Cup since her 2011 debut on the circuit two days before her 16th birthday.

WATCH | Shiffrin beats rival for record-extending 90th career World Cup win:

She won her first race at a slalom in Sweden in December 2012 and set the record for most World Cup wins across genders when passing Swedish great Ingemar Stenmark's mark of 86 last March.

On Sunday, Shiffrin was put to the test by a frenetic second run from Vlhova, the Olympic champion who led the race by more than a second with only the American left in the start gate.

Shiffrin lost half of her first-run lead of 0.28 seconds at the first split, but she gradually gained time on Vlhova again.

Vlhova had won the first slalom of the season in Finland two weeks ago and held a clear lead over Shiffrin in the second race the next day, but then straddled a gate and handed victory to the American.

Shiffrin has won six of the seven slaloms at the annual