Tom Rowe bagged a brace as Wantage Town set up an FA Cup first-qualifying round trip to Oxfordshire rivals North Leigh with a 4-1 hammering of Hartley Wintney.
Tom Butler put Wantage ahead on 26 minutes and two minutes later, Rowe made it 2-0.
Rowe completed his brace on 63 minutes before Brad Chalmers (74) made it 4-0 before Jeffreys clawed one back.
Ardley United crashed 6-2 at Newport Pagnell Town.
Matt Broomes (2), Darren Dykes and Dom Lawless did the damage for the hosts, with Steve Howkins scoring a double for Ardley, one of which was a penalty.
Late on, Newport were reduced to ten men when Dave Baker was sent off for tangling with Howkins, but it made little difference.
Shrivenham lost 2-0 against Bracknell Town, for whom Shane Cooper-Clarke and James Rogers netted.
Abingdon Town went down to a 5-0 defeat at Cinderford Town.
Matt Barnes, Lewis Sommers, Dale Evans, Craig Tait and Karim Rendell completed Abingdon’s miserable day.
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