IFK Mariehamn secured a narrow 1-0 away win against AC Oulu in the Veikkausliiga on May 17, 2025, a result that boosted their mid-table standing. A solitary goal was enough to separate the teams in a match where defensive organization proved key. The decisive moment came in the first half when Mariehamn's forward capitalized on a defensive mistake to slot the ball past the Oulu goalkeeper. AC Oulu dominated possession for large periods, especially in the second half, but found it difficult to break down a resolute Mariehamn defense that protected its lead with great discipline. Oulu's best chance came from a late header that sailed just over the bar, leaving Mariehamn to celebrate a hard-earned clean sheet and three points on the road.