Hailey fought back to beat Carterton 3-2 at home in the first round of the Senior Cup.
Trailing 2-0 at the break to goals from Chris MacNeil, second-half goals from Sean King, Luke Manning and Harvey Butler completed the turnaround.
A hat-trick from Chris Strange helped Minster Lovell storm to a 4-1 win away to Witney Royals.
Paul Wiggins was their other marksman, with Tom West on target for Royals.
Charlbury Town defeated Hanborough 3-1 at home with goals from Shaun Gilbert (2) and Mark Goode getting the other.
Liam Harris hit back for Hanborough.
Former FC Hollybush striker Lee Keyes helped himself to a treble to earn Carterton Rangers to a 4-0 victory against his old teammates in the quarter-finals of the Junior Cup. Sam Giles got their other goal.
Division 1 side Brize Norton brushed aside Division 2 outfit Kirtlington in a 3-1 home success with Bart Lachowicz (2) and Dan Frizzell doing the damage.
Callum Emmet scored for the visitors.
Division 4 champions, Tower Hill pulled off a surprise 3-2 win at Division 3 side Bampton United in the quarter-finals of the Supplementary Cup.
Nathan Beckett and Sid Ashley scored for the hosts, but goals from Jamie Goodwin (2) and Elliot Graham won it for the visitors.
Dave Cross (2), Ben Hardcastle and Omar Semlali were all on target for Spartan Rangers Res in a 4-0 second-round win away to Eynsham SSC Res.
Charlbury Res eased to a 2-0 win at Wychwood Forest, thanks to goals from Dom Crisp and Steven Pearce.