Crown & Thistle knocked RT Harris Oxford City FA's Couling Cup favourites Cowley Crusaders out of the competition with a 5-3 quarter-final win.
Rui De Abreau smashed a hat-trick, with Otis Woodward and Bradley Fine completing their nap hand.
Robbie Carlisle bagged a brace and Josh Green replied.
Fairview also won at home 3-0 to Tetsworth, with Michael Medland (2) and Sidney Mobbs finding the net.
Golden Ball beat Nuffield Arms 4-1, with goals from Mark Mossop (2), Keith Coleman and Will Davenport.
Liam Mosquera hit back for Nuffield.
Rose Hill won 3-2 at home to Corner House, thanks to a treble from Justin Ford.
In the league, Mike Savage scored a hat-trick as leaders Union Street crushed North Oxford 7-1.
Dave Naylor had opened the scoring for the home side.
James Lawton, hit a double, with Declan Mills and David Munday completing the rout.
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