United States were led to victory by Jessie Diggins in the mixed relay ©Getty Images

The United States upset more established teams, winning the 4x5-kilometre mixed relay race on the final day of the International Ski Federation Cross-Country World Cup in Falun.

American star Jessie Diggins anchored the quartet also made up of Rosie Brennan, Zak Ketterson and Scott Patterson to victory, crossing the line in 42min 01.8sec.

Just 3.8 seconds behind was the Finnish quartet of Kerttu Niskanen, Perttu Hyvarinen, Iivo Niskanen and Krista Parmakoski, winning silver by 0.5 seconds in front of the Norwegian team comprising of Heidi Weng, Hans Christer Holund, Didrik Tønseth and Therese Johaug.

Diggins held off the retiring Johaug, who won her 100th World Cup race of her career yesterday to give the Americans gold.

Sweden's squad of Ebba Andersson, William Poromaa, Jens Burman and Frida Karlsson were fourth, 9.1 seconds behind the winners.

Germany's Katharina Hennig, Jonas Dobler, Friedrich Moch and Victoria Carl completed the top five, 16.2 adrift of the US.

Jonna Sundling won the mixed relay gold with Calle Halfvarsson today in Falun ©Getty Images
Jonna Sundling won the mixed relay gold with Calle Halfvarsson today in Falun ©Getty Images

Swedish pair Jonna Sundling and Calle Halfvarsson ended the World Cup with a home victory, beating two strong Norwegian teams in a time of 23:05.91.

The duo of Tiril Udnes Weng and Martin Løwstrøm Nyenget won the silver medal in a photo finish with team-mates Lotta Udnes Weng and Harald Østberg Amundsen.

Both were 10 seconds behind Sweden and only separated by a margin of 0.07 seconds.

Italians Nicole Monsorno and Federico Pellegrino were fourth and the second Swedish team of Johanna Hagström and Oskar Svensson completed the top five.