AC Oulu suffered a surprise 2-0 home defeat to KTP Kotka in the Veikkausliiga on September 27, 2025. The visitors put in a disciplined performance at the Raatti Stadion to secure an impressive away victory and complete a league double over Oulu. KTP took the lead against the run of play in the first half, capitalizing on a defensive mistake, and then sealed the match with a breakaway goal in the final minutes as Oulu committed men forward. The result was a significant setback for AC Oulu's ambitions, disrupting their momentum in the race for European spots, while it marked a major triumph for KTP's mid-table security. The KTP goalkeeper was the standout performer, making several crucial saves to preserve the clean sheet and the three points.