In 2022, Tijmen Graat transitioned from the junior ranks to Team Visma | Lease a Bike Development. During his initial two years with the team, he demonstrated his prowess with victories in events such as the Istrian Spring Trophy, GP Palio del Recioto, and the Eurode Omloop. In 2023, he already secured a contract with the WorldTour team, set to commence in 2025.