Bryan Gilfillan scored his fifth goal of the campaign as Peterhead clinched second spot with a 3-0 win over play-off opponents Queen's Park.
The visitors went ahead in the 21st minute when Gilfillan latched onto David Cox's cross to head past Queen's Park stopper Blair Lochhead from close range.
The Spiders pushed for an equaliser in the closing stages of the first half but they could not find a way past Graeme Smith in Peterhead's net.
The Blue Toon doubled their lead seven minutes after the re-start when Andrew Rodgers drilled in from 12 yards.
Jim McInally's men completed the rout in the 79th minute when Dean Cowie found the top left of Lochhead's goal from 20 yards.