Teenage U.S. skier Shiffrin wins Overall World Cup slalom title . I could n't be more pleased . '' Three days after her 18th birthday , Shiffrin overhauls Shiffrin . She sets the fastest time of the second run to take title from overall champion . Compatriot Mikaela Shiffrin caps golden season with 18th victory in giant slalom .
Teenage U.S. skier Shiffrin wins Overall World Cup slalom title . Three days after her 18th birthday , Shiffrin overhauls Shiffrin . She sets the fastest time of the second run to take title from overall champion . Compatriot Mikaela Shiffrin caps golden season with 18th victory in giant slalom .