Kansallinen Ykkönen

The league was founded in 1984 as the Naisten I divisioona (Women's Division 1). The league was preceded by the Naisten perussarja (Women's Base Series), which played during 1973–1980, and the Naisten aluesarja (Women's Regional Series), which played during 1981–1983. Naisten I divisioona was renamed “Naisten Ykkönen” in 1996. Naisten Ykkönen was renamed "Kansallinen Ykkönen" in 2025. The start of the 2020 Naisten Ykkönen season was delayed by the COVID-19 pandemic and there was some concern early on that the season may need to be cancelled. However, the concerns were not realized and on 15 May 2020, the Football Association of Finland announced that the 2020 Naisten Ykkönen season would be played with a modified format, a single round-robin series (11 matches) and three regional blocks of four teams, played as a double round-robin series (6 matches), for a total of 17 rounds. == Format ==

Kansallinen Ykkönen comprises ten teams in the regular season. The teams play in a double round-robin series for a total of 18 rounds. After this the top four teams go into a six team promotion/relegation single round-robin series with the bottom two teams of Kansallinen Liiga. The two top ranked teams of the series remain in/are promoted to Kansallinen Liiga the next season, while the bottom four remain in/are relegated to Kansallinen Ykkönen. The bottom six Kansallinen Ykkönen teams play a single round-robin relegation round series, after which the worst placed team gets relegated to Naisten Kakkonen, while the second worst-rated team goes into a two legged play-off against the best placed Naisten Kakkonen team. In total, one to four teams are changed from one season to the next. == 2026 season==

Teams 2026 TN is the standard Finnish abbreviation for artificial turf () Source: Suomen Palloliitto ==References==