Rio Tadokoro is a professional footballer from JPN and is currently 21 years old. He is on the books of Renofa Yamaguchi and wears shirt number 38. At international level, he features for Japan U18. His main role on the pitch is Defender. He measures 187cm in height and weighs 74kg.

His latest transfer saw him join V-Varen Nagasaki from Renofa Yamaguchi via Loan on 2026-06-30.

Across the Japanese J1 League 2026, Rio Tadokoro appeared in 3 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.