After completing his collegiate career, Nathaniel turned professional and signed with Swiss sportswear brand On, continuing his fine form on the global stage. He featured prominently in the Diamond League, reaching multiple finals to consolidate his status as one of Africa’s brightest track prospects.

In 2025, Nathaniel set a new Nigerian national record in the men’s 400m hurdles for the sixth time at the World Championships, finishing fourth overall.

Nathaniel, who hails from Delta State, will next be honoured alongside other Bowerman Award finalists at the USTFCCCA Convention on December 18 at the Gaylord Texan Resort & Convention Center in Grapevine, Texas, where the 2025 Bowerman winner will be announced.