Bognor remained in title contention with an impressive 20-8 home win over Folkestone in London Four South East.
Gareth Williams, Joe Grenslade and Andy Shipp scored tries with Shipp adding a conversion and a penalty.
They then went to Lewes in the Trophy and grabbed an 18-16 win.
Shipp fired the winning points with a late penalty with Neil Rumble then seeing a chance to send Lewes through drift wide of the posts.
Early tries from skipper Karl Flynn and Tom Spurle, who added a conversion, saw Bognor roar into a 12-0 lead but further pressure went unrewarded and Rumble kicked two Lewes penalties by the break.
Shipp slotted Bognor into a 15-6 lead but an opportunist Ben Wood finish and a pushover try edged Lewes one point clear going into the final stages.
Flynn said: "Lewes could have won it but they did not deserve to be in that position. Our lads were outstanding and I'm very proud of them."
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