With nine more World Cup victories than Ingemar Stenmark's previous record, the American is currently only five wins away from the Swede's podium record.
Zrinka Ljutic of Croatia was beaten by Shiffrin, 28, by a mere 0.14 seconds.
She had a furious finish as Ljutic, 19, cut up her lead of 0.52 seconds from the opening run.
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