2023-2024: First professional matches, maiden Futures final In 2023, Röttgering reached the semifinals of the senior Dutch Championships as a 16 year-old, where he was defeated by
Gijs Brouwer. In February 2024, he reached his first professional final at M15
Sharm El Sheikh, a Futures-level event. He lost to
Philip Henning in the final. Despite that, he became the only 16 year-old inside the top 1000 male rankings that time. He also became the youngest Dutch man ever to reach a singles final on the
ITF Tour.
2025: Turning pro, ATP debut Röttgering received a wildcard for his ATP debut at his home tournament, the
2025 ABN AMRO Open in Rotterdam, where he made his ATP debut. ==ITF World Tennis Tour finals==