Level on points with second placed Hampshire ahead of the final round of the season, Jersey needed to match their rivals' result to secure top spot, and strong performances in the opening singles on Saturday put them firmly in control.
Wins for Commonwealth Games players Mark Constable and Alex Hutchings in the men's singles added to successes in the ladies' singles, where Kerry Coombs-Goodfellow and Emily Temple-Redshaw both won their matches 2-0, and after extending this advantage to 8-0 during the first round of the doubles a 13-2 victory was secured.
Sunday's encounter was a repeat of Saturday's eleven-point success as Colin Hardwidge came into the side to partner Jon Southern and Moira Ashby in the men's and mixed doubles, and captain Constable was pleased with the way his side went about getting the job done.
'We started well and got on top of the match early on both days, not letting them have any kind of a look in,' said Constable.
'We didn't take our foot off the pedal and it was a very professional performance by all.
'The team have been great all year and thoroughly deserve the promotion.'
Match one, men's singles: Mark Constable beat Mac Powell 21-13, 21-9; Alex Hutchings bt Oscar Mo 18-21, 21-17, 21-13. Women's singles: Kerry Coombs-Goodfellow bt Rowen Despard 21-9, 21-15; Emily Temple-Redshaw bt Lauren Theedom 21-19, 21-12. Men's doubles: Constable/Jon Southern bt Oscar Mo/Luscombe 21-14, 21-7; Hutchings/Matt Bignell bt Davies/Powell 21-9, 21-11; Constable/Southern bt Joe Davies/Mac Powell 21-7, 21-5; Hutchings/Bignell bt Mo/Luscombe 21-12, 21-17. Women's doubles: Coombs-Goodfellow/Moira Ashby bt Despard/Bonny Mo 21-13, 21-7; Temple-Redshaw/Tamsyn Abraham beat Theedom/Vicky Prouse 21-7, 21-9; Coombs-Goodfellow/Ashby bt Theedom/Prouse 21-11, 21-12; Temple-Redshaw/Abraham lost to Despard/Bonny Mo 19-21, 21-14, 14-21. Mixed doubles: Constable/Coombs-Goodfellow bt Powell/Despard 21-9, 21-9; Southern/Abraham bt Davies/Prouse 21-14, 21-7; Bignell/Temple-Redshaw lst Luscombe/Bonny Mo 18-21, 21-16, 16-21. Jersey 13-2 Devon.
Match two, men's singles: Constable bt Powell 21-8, 21-10; Hutchings bt Oscar Mo 21-13, 21-10. Women's singles: Coombs-Goodfellow bt Prouse 21-19, 21-15; Temple-Redshaw bt Theedom 21-10, 21-12. Men's doubles: Hutchings/Bignell bt Luscombe/Oscar Mo 27-25, 21-14; Southern/Colin Hardwidge bt Davies/Powell 21-9, 21-10; Southern/Hardwidge 21-17, 25-23; Hutchings/Bignell bt Davies Powell 21-15, 21-17. Women's doubles: Coombs-Goodfellow/Ashby bt Despard/Bonny Mo 23-21, 22-20; Temple-Redshaw/Abraham bt Theedom/Prouse 21-12, 21-12; Coombs-Goodfellow/Ashby bt Theedom/Prouse 21-15, 21-9; Temple-Redshaw/Abraham lst Despard/Bonny Mo 17-21, 18-21. Mixed doubles: Hutchings/Coombs-Goodfellow bt Oscar Mo/Theedom 21-11, 21-15; Southern/Abraham lst Davies/Prouse 28-30, 21-9, 21-18; Hardwidge/Ashby bt Luscombe/Bonny Mo 21-17, 18-21, 21-17. Jersey 13-2 Devon.