A hat-trick of tries from Seb Akillian helped Old Brightonians romp to a 44-7 win over Robertsbridge.
Steve Humphries (2), Mark Dodd and Dougie Edmonds also got over with Toby Harding adding three conversions and a penalty.
Paul Scott scored the Robertsbridge try with Willie Pugh-Jones converting.
Meanwhile, Gary Howorth's penalty in the last five minutes was enough to give Shoreham a 3-0 win at Plumpton.
Ditchling's 30-24 success against Arun was more exciting as full back Lee Hubble scored four tries. Will Pasquali also crossed.
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