The time trial of the Swiss stage race was 18.8 kilometres against the clock in and around Châtel Saint-Denis. There was a four-kilometre climb in the middle of the stage, and it was on this climb that the biggest differences emerged.

World champion Foss was the penultimate rider to start the time trial as the penultimate rider after the other five Team Jumbo-Visma riders had already finished. Foss, who had just returned from altitude training and was recovering from an illness, set the eighth intermediate time at the top of the climb. He held this position until the finish, conceding 24 seconds to Ayuso. In the general classification, the Norwegian rider dropped one place to third.

"The last part of the climb didn't go very well", Foss admitted. "It wasn't the day I hoped for, but it's not a bad result either. It is what it is. The course didn't lend itself to going 50 kilometers per hour all the time, but the time trial specialists were definitely able to have a go. I am still in a good position in the general classification. With the last two days ahead of us, we will do everything we can to secure the highest possible position in the general classification."