As a junior, Rune was ranked as high as world No.
After turning professional in 2020, he won five titles on the ITF World Tennis Tour and five on the ATP Challenger Tour and made his top 100 debut in the 2022.ġ and won ten titles on the ITF Junior Circuit, including the 2019 French Open boys' title. Three months later, Rune reached his first ATP Tour final at the 2022 Bavarian International Tennis Championships, where he won his first title and subsequently entered into the top 50.
