She and Diggins won the United States' first ever cross-country skiing gold medal at the Winter Olympics in women's team sprint at Pyeongchang in 2018.

Randall's parents, Ronn and Deborah (née Haines) originally met at a California ski resort.

[4][5] After completing High School in Anchorage, Alaska at East High school, Kikkan Randall decided to stay in her home town, Anchorage to start her undergraduate studies and train with Alaska Pacific University Nordic Ski Center to start her new beginning.

In January 2006, Randall returned to Soldier Hollow, Utah, the site of the 2002 Olympic cross-country competition, and won national titles in the 5-kilometer freestyle, the 10-km classical and the sprint.

On January 21, 2007, she captured bronze in the women's 1.2-kilometer sprint in Rybinsk, Russia, the best ever cross-country World Cup result by an American woman.

Later that calendar year, in the following season, she took the first World Cup win for an American female skier since the introduction of women's competition in 1978 in another 1.2 kilometre sprint at the same venue.

[6] Randall became the first American woman to win a World Cup discipline title in cross-country by topping the season's Sprint standings.

[6] Randall won four World Cup freestyle sprint events, in Quebec, Val Mustair, Sochi, and Lahti.

[10] Subsequently, she suggested that her focus on peaking for the Olympics was disrupted by a back injury which she sustained whilst training in Davos in December 2013.

In October 2015 Randall announced that she was expecting her first child in April, and would take leave from competition in the 2015-16 season before returning in 2016-17 with a focus on the 2017 World Championships in Lahti and the 2018 Winter Olympics in Pyeongchang.

Subsequently, in 2018 she was elected to the International Olympic Committee's Athletes Commission, succeeding American ice hockey player Angela Ruggiero.

She announced her diagnosis in July of that year on her social media accounts, as well as her plans to return to Anchorage to undergo chemotherapy.