Anthony Kay conceded just eight runs in his first seven overs
Jersey have lost their World Cricket League Division Four survival fight in the most dramatic fashion in Tanzania.
The Channel Islanders were comfortably beaten by 101 runs by Hong Kong, who gained promotion with the win.
Fiji, who had not won a match, beat the hosts Tanzania by two runs, and that left three teams level on two points, with two facing relegation.
Tanzania had the best run rate of the three - and they stayed up with Jersey and Fiji dropping off the table.
The three teams involved all had an agonising two-and-a-half-hour wait to see which of them would stay up as ICC officials went through the scorecards with a fine tooth comb.
Jersey needed to score another 60 or so runs in their reply to Hong Kong's innings in order to have stayed up. But in the end Jersey's poor form with the bat throughout the tournament cost them dear.
In Friday's final day of round-robin matches, Jersey lost the toss but bowled superbly.
Their first four bowlers, Ryan Driver, Tony Carlyon, Andrew Dewhurst and Anthony Kay held Hong Kong to just 31-2 off their first 20 over.
WORLD CRICKET LEAGUE DIVISION FOUR TABLE
Afghanistan 10 pts
Hong Kong 8 pts
Italy 6 pts
Tanzania 2 pts
Jersey 2 pts
Fiji 2 pts
Jersey and Fiji relegated due to inferior run rate
Kay, 18, produced an opening seven-over spell which included some of the best bowling seen in the championship. He had four maidens as he returned figures of 1-8.
Jersey held Hong Kong to 76-4 off 27 overs before Hussain Butt and Skhawat Ali came together and put on a fifth wicket stand of 119 at seven runs an over.
When the due were finally broken up, with Ali out for 47, Hong Kong were 195-5.
They bowled Hong Kong out with just one ball left - Butt being run out at the non strikers end after Andrew Dewhurst excellently tipped a straight drive onto the stumps.
But once again Jersey's sound fielding performance was not reflected by the batsmen.
The top five were out for just 45 runs and it was left to the tail-enders to once again push Jersey on.
Dewhurst, who came to the crease in the 13th over was the last man out with a top score of 33 while Tony Carlyon, playing his final game for the island side, hit 21.
The Fijians unexpectedly beat Tanzania in a nail-biting match at the bottom of the table.
Chasing Fiji's total of 182 the host nation were bowled out by the Pacific Islanders for 180 with just three balls to spare at the Dar-es-Salaam University Ground.
Jersey face Fiji in the play-off to decide who finishes fifth and sixth in the tournament, but Jersey will be back in World Cricket league Division Five from next season.