Equipment testers will sometimes ski dozens of miles a day to dial in the right combination of ski, wax and grind work.

American cross-country skiing star Jessie Diggins closed out her Olympic career with a grueling 50-kilometer race at the Milan Cortina Winter Olympics, leaving a legacy as the most decorated U.S. skier in the sport's history.

A surprise participant in Wednesday’s action at the Milan Cortina Olympics had four legs and zero concern for race times.

Johannes Hoesflot Klaebo is officially 6-for-6: He's won gold in all six of his cross-country events at the Milan Cortina Olympics. Norway's 29-year-old Olympic legend entered rare air with one more signature kick on Saturday.

Combining cross-country high speed skiing with a rifle didn't happen by chance. The history of the biathlon explained.

The 2026 Winter Olympics in Milan-Cortina have featured a bit of everything, but even some fans were still left shocked by Wednesday’s cross-country skiing event. An unexpected dog stole the show during the cross-country skiing team sprint qualifying event,

In this image taken from video provided by Olympic Broadcasting Services, OBS, a dog runs onto the track near the finish during the heats of the cross-country skiing women's team sprint free at the 2026 Winter Olympics, in Tesero, Italy, Wednesday, Feb. 18, 2026. (Olympic Broadcasting Services via AP)

It is the newest, some would contend toughest, Winter Olympic sport but its origins actually date back longer than any other.