Dave Cox’s side impressed around Christmas with wins against Champ sides Chinnor, Richmond and Cambridge.
And they will hope to find similar form at Rosehill, starting with a clash against Reading (7.15pm).
Henley are up next (8.05pm) before Bracknell (8.30pm) and Abbey (8.55pm).
Each match is 20 minutes, with the top two playing a Grand Final after the group stage is complete.
Entry is free with the bar and barbecue available.
The Under 23s are then back at Old Bath Road to play Lambs RFC on Wednesday, April 8.
