She attended Park City High School until 2011, when she began competing in the Ski Jumping World Cup.

The 2012/13 season saw her win four World Cup competitions while finishing runner-up to nearest rival Sara Takanashi.

Hendrickson was also able to win the women's event at the 2013 Ski Jumping World Championships in Val di Fiemme.

On August 21, 2013 in Oberstdorf, Hendrickson suffered a serious knee injury which required reconstructive surgery for a damaged ligament.

[3] She was one of five top female jumpers who, within a few months, had a bad fall and was forced to take a long recovery period.