United hold Pars
Ayr boosted their play-off aspirations by holding second-placed Dunfermline to a 1-1 draw at Somerset Park.
Dunfermline's Alex Whittle had a shot saved early in the game by David Hutton and Ayr's Brian Gilmour sent his effort wide.
The Pars were quick out of the blocks in the second half and Ryan Thomson put them into the lead after heading Faissal El Bakhtaoui's cross past Hutton.
His goal was soon cancelled out by Alan Forrest, who drew the home side level with a neat finish from close range for his eighth of the season.
Ayr's top scorer Michael Moffat, who featured in the division's team of the year, failed to convert a chance late on and Brian Gilmour fired a good opportunity over the bar as the full-time whistle neared.