He is on the books of AZ Alkmaar Women and wears shirt number 22. His main role on the pitch is Forward.

During the Netherlands Eredivisie Vrouwen 2025-2026 campaign, Kealyn Manou Sigrid Thomas made 14 appearances, scoring 0 goals and adding 2 assists. He averaged 0 goals per match from 8 shots, with 2 on target.