Krista Pärmäkoski is a Finnish cross-country skier who has been competing since 2007. Among other career achievements, she is a five-time Olympic medalist.

The Tour de Ski (TdS) is a cross-country skiing event held annually since the 2006–07 season in Central Europe, modeled on the Tour de France of cycling. The Tour de Ski is a Stage World Cup event in the FIS Cross-Country World Cup. Each Tour de Ski has consisted of six to nine stages, held during late December and early January in the Czech Republic, Germany, Italy, and Switzerland. As of 2023, the prize money for the event amount to 770,000 Swiss francs (779,000 euros), shared out on both men and women. Men's and women's events are held together on the same days, with the only difference being the distance skied.