He currently plays for Trelleborgs FF, wearing the number 8 shirt. He plays primarily as a Midfield. His current market value is estimated at 50K €.

His most recent move was a from Tvaakers IF to Trelleborgs FF on 2025-01-31.

Across 18 appearances in the Sweden Division 1 2024, Oskar Ruuska registered 5 goals and 0 assists, while completing 0 key passes out of 0 total passes with a passing accuracy of -.