Seaton Delaval withstood a late barrage from Alnwick Town Reserves to lift the Bluefin Group Bill Gardner Memorial Trophy.
The Red Devils went ahead in the ninth minute.
The premier division side must have thought the chance was gone when the Town keeper pulled off a great penalty save, but from the resultant corner, Anthony Woodhouse headed in.
Delaval made it two just after the interval when Michael Fenwick tucked in a right wing cross as Town were hit on the break.
The second division side continued to create chances but were left frustrated as they could not hit the back of the net despite all their pressure.
Kev Carr hit a hat-trick and Gary Yates netted twice as Shankhouse beat Rutherford. Lee Gustard got the other with Will Forsyth netting the consolation.
Percy Main face the drop after going down at Carlisle City. The Villagers needed to win in Cumbria and hope that relegation rivals Hebburn Reyrolle slipped up in their final fixture. But goals from Dan Gawith, Peter Ferris and Marc Shiel gave runners-up chasing City their eighth win in a row. Sam Thompson pulled one back.
Robbie Frame and Kev Hay both struck twice in Gateshead Redheugh’s promotion showdown with Newcastle Chemfica in division one. Liam Henderson also slammed home with Jay Lomana and Ian Hutchinson replying for Chemfica, who now trail their hosts by four points with both having two games to play.
At the bottom of the table, Willington Quay Saints need to win their final game to get out of the basement after Daniel Ure, Andrew Renton and Tavis Couling fired home for Bohemians in the first half. Glen Johnson hit a consolation from the penalty spot late on for the Saints, who are a point behind Heddon.
David Scott’s double and a Robbie Eastway strike helped ease Bedlington Terriers Reserves away from the danger zone against Ponteland United.
Birtley Saint Joseph’s strikers Martin Guy and Lee Cuthbertson both hit doubles at Hexham. Tom North and Patrick McAllindon replied.
Joseph Laver was another that got on the scoresheet twice for Newcastle Uni at Cullercoats. Jake Salisbury grabbed the other for the Students with Dean McCarthy notching for the hosts.
Michael Starkie smashed in a hat-trick as Wallsend Boys Club kept their promotion hopes alive in division two. Nicky Whitelaw and a Carl Morrison screamer completed the total against Seaton Burn.
Ben Jefferson, Dylan Heneghan (pen), Chris Thompson and Matty Dawson pulled the trigger for Newcastle Benfield Reserves as they completed their fixtures with a 4-1 success against Wideopen.
Second division AFC Newbiggin stunned first division North Shields Athletic to win the Northumberland FA Minor Cup.
Newbiggin lifted the prestigious trophy thanks to a 3-0 win.