LENZERHEIDE, Switzerland — Dario Cologna and Ingvild Flugstad Oestberg won cross-country Tour de Ski distance races for the second straight day Monday and both lead the overall standings after three of seven stages.

Cologna started a 15-kilometre freestyle pursuit event 1.6 seconds behind previous leader Sergey Ustiugov, and was 17.2 seconds ahead of the Russian at the finish almost 35 minutes later. With a time bonus, Switzerland's Cologna leads Ustiugov by 22.6 overall.

Alexander Bolshunov of Russia finished third and trails Cologna by 55.5 seconds going into Wednesday's fourth stage in Oberstdorf, Germany. Alex Harvey, from St-Ferreol-les-Neiges, Que., was fourth in the stage to move into fourth in the overall standings, 61.8 seconds back.

"I feel like the first three stages were a success and I'm right where I want to be," said Harvey. "The body is a bit tired now. It will be good to get a rest day tomorrow, and nice to get back to sea level. We are very close to Davos where it has been challenging for me skiing at altitude so I'm glad to have those first three stages done and in good position."

Oestberg retained her overall lead with a 27.8-second victory over fellow Norwegian Heidi Weng in the women's 10-kilometre pursuit, and earned an extra 5-second time bonus.

Third-place Jessica Diggins of the United States now trails Oestberg by 1 minute, 26.9 seconds.