Mikaela Shiffrin Cheers on Brother during Leadville 100 MTB

Mikaela Shiffrin Attends Brother’s Big Race at Leadville 100 MTB

The accomplished ski racer cheered on her brother as he competed in the Leadville 100, one of the country’s most difficult endurance races.

Mikaela Shiffrin is the best alpine ski racer of all time, but that doesn’t mean she’s too busy to support her brother, Taylor, who competed in Colorado’s gruelling Leadville 100 MTB event last weekend.

Mikaela recently shared a series of images on Instagram from the course’s sidelines. She wrote a poignant note to her brother, “Lots of reasons why I look up to my big brother, but this just might take the cake…”

She described Taylor’s decision to enter the Leadville 100 on a whim and then completing the 105-mile cycling race.

“I’m so shaken…” Mikaela writes, “Befuddled…flabbergastydabbered…” “Honestly,[Taylor]… You are pretty much the coolest. “I am certainly inspired.”

The Leadville 100 MTB was first conducted in 1994 and is a long, high-altitude slog with an elevation climb of 12,000 feet. It has a high elevation of 12,500 feet and challenges racers with difficult descents and climbs.

Mikaela Shiffrin poses with her brother at Leadville 100 MTB.
Photo: Mikaela Shiffrin/Instagram
Photo: Mikaela Shiffrin/Instagram

This year, Kate Courtney won the women’s event in slightly under seven hours. The men’s winner, Keegan Swenson, completed the race in five hours and 45 minutes.

The 105-mile bike race is part of the Leadville race series, which also involves a gruelling trail run. Both competitions are among the most challenging endurance tests in the country.

Mikaela, for her part, is gearing up for another Olympic push following a difficult competitive season. In November 2024, she crashed on the Killington, Vermont, giant slalom course, causing her to rest while her stomach muscles recovered.

Mikaela returned to racing in January 2025, and she finished the winter with a spectacular slalom win at the World Cup finals in Sun Valley, Idaho.

She is now spending the summer practicing for another try at Olympic glory. Already the most successful alpine racer of all time, she will have the opportunity to add to her Olympic trophy case, which includes three medals.

The new season begins in Soelden, Austria, with men’s and women’s giant slalom races. The 2026 Milano-Cortina Winter Olympics begin in February.