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Deal Town won a Kent Senior Trophy thriller at home to Glebe after forcing extra-time with a last-gasp equaliser.
The Hoops, who led at the break through Riley Alford, were heading out at 2-1 down in Saturday's second-round clash.
But Billy Munday levelled at the death and Deal went on to win 4-2 with Macca Murray's penalty and a clincher from Ben Chapman earning a quarter-final spot.
Hollands & Blair survived a Holmesdale fightback to reach the last eight.
Harry Brown and a Tom Walmsley double put Scott Porter's men in charge but they were holding on at 3-2 after Luke Adams and Edward Sata replied.
Division 1 leaders Snodland beat Premier Division Kennington 2-1.
Regan Corke and Rob Denness struck inside 20 minutes, with Tom Scorer pulling a goal back before half-time.
Stansfeld eventually shook off Phoenix Sports in a 10-goal cracker.
Sports twice hit back from a goal down but it finished 6-4 to the visitors.
There were doubles for Ross Morley and Macey Malyon, with Tommy Whitnell and Lee Friend the other Stansfeld scorers.
Francis Babalola (2), Tom O'Connor and Lee Bird struck for Phoenix.
Punjab United came from a goal down to thrash SC Thamesmead 6-1 thanks to Paul Vines, Will Johnson-Cole, Chandler Kasai, Chris Edwards (2) and Lea Dawson.
Phil Headley and a late Jordan Ababio strike saw Bearsted beat Rusthall 2-0 at Honey Lane.
Harry Taylor's double and a Jason Goodchild effort led Erith Town to a 3-0 success at Lewisham Borough.
There were two Premier Division games.
Cedric Nganga, Michael Sarpong and Billy Brown were the scorers as Fisher beat Welling Town 3-1.
George Acland scored a last-minute consolation for Lordswood in a 5-1 home defeat by Sutton Athletic.