If Hayes and Yeading United maintain their current form and secure a play-off place, the first leg of the Blue Square Conference South semi-final play-off is Tuesday, April 28.
The second leg is schedule for Saturday, May 2 with the final being held on Friday, May 8.
H&Y, who were without a gane at the weekend, currently sit in fourth spot and are six points clear of sixth placed Maidenhead United, who due to ground improvement problems can't be promoted this season. Seventh placed Welling United are a further nine points adrift of Garry Haylock's side.
United are next in action on Saturday (28/3) when they visit lowly Weston-super-Mare, who will be without their influential skipper Charlie Comyn-Platt, who has left the Somerset club to join Australian side ECU Joondalup.