Jessie Diggins is fifth in the team sprint.

Jessie Diggins, left, and her teammate Rosie Brennan in the team sprint. Diggins had won the gold with a different teammate in 2018.Credit...Gabriela Bhaskar/The New York TimesJessie Diggins returned Wednesday to the cross-country course at the Beijing Olympics, and to the event that made her a household name: the women’s team sprint. But with a new teammate and a different type of skiing style, Diggins could not write the same ending she crafted four years ago at the Pyeongchang Games.

Diggins and her new partner, Rosie Brennan, finished fifth in the race, unable to keep pace in the final kilometer with a lead group that sped away and claimed the medals. The German pair of Katharina Hennig…