He is on the books of Narpes Kraft and wears shirt number 2. His main role on the pitch is Defender.

His latest transfer saw him join Vaasa IFK from Narpes Kraft via on 2026-01-01.

Across the Finnish Ykkonen 2025, oskar hammarstrom appeared in 7 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.