Bracknell Town are the favourites to advance in the first round proper of the Buildbase FA Vase according to online betting firm oddschecker.com.
The Robins are 4/5 to beat Croydon at the Sports Arena on Saturday afternoon having already seen off Hook Norton and local rivals Binfield in the qualifying rounds.
Croydon FC are (15/8) and the draw is (7/2).
Ascot United come in to the round, despite having been given a bye from the qualifying rounds as underdogs with Southern Counties East Premier side Hollands and Blair (4/5), the draw (7/2) and the Yellaman (15/8).
Bracknell head to South London full of confidence having scored 17 goals without conceding in their last three games. The last fixture was a 9-0 win at home to Brackley Town Saints on Tuesday night.