Top of the league by a point with only four matches remaining, Ayr are clinging with goal difference being in the Honest Mens favour, a difference that may yet be crucial in the title race.
United have now stretched their un beaten away run to nine games after a satisfying and comprehensive 3-1 win at Gayfield Park, Arbroath last weekend.
With Brechin still competeing for a play off place the visit to Glebe Park will not be an easy one. However title rivals Raith Rovers have a similarly difficult visit to Stirling, themselves fighting for a play off place having dropped a few crucial points of late.
Success has also been achieved with Ayr United manager Brian Reid being honoured as manager of the month for March.
In that time his side thumped Stranraer 5-0 after drawing with Queen's Park before enjoying single-goal victories over Raith and East Fife.