Dundee United overturned a half-time deficit to defeat SWPL 2 runners-up Kilmarnock and remain in the top flight.
Kilmarnock goalkeeper Ellie Currie made three first-half saves, before Abby Robinson fired them in front from the edge of the box, with the last kick of the half.
Dundee United – who finished next to bottom in SWPL 1 – where back on level terms ten minutes after the restart, with a 2o-yard effort from Georgie Robb.
The winning goal came in the 72nd minute as Kilmarnock failed to clear a corner and Brodie Greenwood netted from close range.
A second play-off at Falkirk Stadium takes place tonight (Friday 24 May), when Glasgow Women defend their SWPL 2 status against Championship runners-up Ayr United.