In one of the most thrilling matches seen at Grouville for years, all but two of the matches went to the 18th hole and beyond.
Island captain Steven Bowen (5 handicap) led the way for the Royal in a tight match which finished with Bowing holing a birdie putt on the final hole to defeat Craig Nielson (scratch) 1-up.
The scores were levelled by Bob Wickings (4) also winning on the last hole to defeat former professional Paul Le Chevalier (plus-1), 1-up.
A great comeback from Wickings who was four-down at the turn.
Channel Islands champion Matt Parkman (scratch) only required to halve the 18th to defeat Andy Clarke (1).
However, he conspired to lose the hole to par, before Clarke won the 19th with a birdie.
Clarke had also struggled in the early stages being three-down after nine holes.
In the middle matches points were shared as La Moye’s George Kean (3) defeated Island junior champion Gyles Robin (3) 4 and 3 and Matt Vincent (3) won a memorable match with Richard Ramskill (+2) 3 and 2.
Vincent was 5-up after eight holes before Ramskill hit back with an eagle at the ninth, a birdie at the tenth and a par at the 11th.
Vincent kept his nose in front until winning a couple of holes down the stretch in quick succession to close the match out.
The Royal led 3-2 with two matches remaining.
Stephen Rafferty (4) was 1-up playing the 17th against La Moye’s Andy Boxall (2), but a magnificent shot to three feet set up a birdie and a win for Boxall at the tough 17th to take the match to the last hole.
At the same time James Birch (1) was already playing the 19th against Simon Allchin (2).
Birch, who had clawed his way back from three down with three to play was putting out on the 19th.
The 70-strong crowd did not know where to look! Both Rafferty and Boxall hit good shots into the 18th and after Boxall missed his birdie opportunity from 20 feet, Rafferty rolled his 15-footer to win the match 1-up and level the scores at 3-3.
This caused a stampede as 50 onlookers ran up the first fairway to watch the deciding match tee off at the 20th hole.
The crowd witnessed a memorable sight in seeing Island player Robbie Messervy sprinting up the fairway to support his club colleague! Allchin had forced a half in par on the first extra hole.
Birch had retained the honour on the par-3 20th and struck a beautiful 5-iron to within 25 feet to put pressure on.
Allchin struck a good shot but leaked it to the right and it ended up in the greenside bunker.
His recovery shot was good, but just hit a little too strongly and it rolled over the green.
However, he did what was required and got up and down for a bogey 4.
However, the experience of Birch showed and he calmly two-putted to secure thrilling 4-3 win to the home side.
Royal Jersey oppose Jersey Western in the final on a date to be decided.