However, ahead of the 2022/23 winter season, she was included in the Utviklingslandslag, a development team equivalent to the B-team.

Subsequently, the Norwegian athlete made her IBU Cup debut in Idre at the end of 2022, finishing in the Top 30 three times despite consistently struggling with shooting misses.

She showed significant improvement during the 2023/24 season, achieving her first podium finish in the sprint event in Sjusjøen, where she placed third behind Océane Michelon and Jeanne Richard.

[2] In February 2024, Randby participated in the Junior World Championships for the first time, winning gold in the mixed relay with Sivert Gerhardsen, Isak Frey, and Maren Brännare-Gran, as well as silver in the women's relay.

[4] After the preseason races in Sjusjøen in November 2024, she was selected for the main roster of the Norwegian national team to compete in the first stage of the 2024/25 World Cup.