Stina Nilsson of Sweden (19) competes during the Ladies' 30km Mass Start Classic on Day 16 of the PyeongChang 2018 Winter Olympic Games at Alpensia Cross-Country Centre on February 25, 2018 in Pyeongchang-gun, Republic of Korea.

Marit Bjoergen of Norway (8) leads the pack during the Ladies' 30km Mass Start Classic on Day 16 of the PyeongChang 2018 Winter Olympic Games at Alpensia Cross-Country Centre on February 25, 2018 in Pyeongchang-gun, Republic of Korea.

Krista Parmakoski of Finland competes during the Ladies' 30km Mass Start Classic on Day 16 of the PyeongChang 2018 Winter Olympic Games at Alpensia Cross-Country Centre on February 25, 2018 in Pyeongchang-gun, Republic of Korea.

Teresa Stadlober of Austria (4) and Marit Bjoergen of Norway (8) compete during the Ladies' 30km Mass Start Classic on Day 16 of the PyeongChang 2018 Winter Olympic Games at Alpensia Cross-Country Centre on February 25, 2018 in Pyeongchang-gun, Republic of Korea.

Teresa Stadlober of Austria (4), Kerttu Niskanen of Finland (9) and Krista Parmakoski of Finland (7) compete during the Ladies' 30km Mass Start Classic on Day 16 of the PyeongChang 2018 Winter Olympic Games at Alpensia Cross-Country Centre on February 25, 2018 in Pyeongchang-gun, Republic of Korea.

Krista Parmakoski of Finland (Silver), Marit Bjoergen of Norway (Gold) and Stina Nilsson of Sweden (Bronze) celebrate following the Ladies' 30km Mass Start Classic on Day 16 of the PyeongChang 2018 Winter Olympic Games at Alpensia Cross-Country Centre on February 25, 2018 in Pyeongchang-gun, Republic of Korea.

Anastasiya Kuzmina of Slovakia shoots during the Women's 12.5km Mass Start Biathlon on Day 8 of the PyeongChang 2018 Winter Olympic Games at Alpensia Biathlon Centre on February 17, 2018 in Pyeongchang-gun, Republic of Korea.

Athènes 1896-The start of a race.

Squaw Valley 1960-Start of the 4x 10 km race.

17 May-12 Aug 1928: Competitors ready to start the 5000 metres event during the 1928 Olympic Games in Amsterdam, Netherlands. Vilho Ritola of Finland won the gold medal. \ Mandatory Credit: IOC Olympic Museum /Allsport