Risako Oga is a 30-year-old professional football player from JPN. He currently plays for Nojima Stella Kanagawa Sagamihara, wearing the number 5 shirt. He plays primarily as a Defender. He stands at 169cm tall and weighs 52kg.

Throughout the Women Empowerment League 2025-2026, Risako Oga featured in 16 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.