Relegated Grouville have ended the Premiership season on a high after a 3-1 win at St Ouen.
Steve Ashton, Nick Walmsley and Nelio Marote were on target for the eastern parish side as they recorded their second league win of the season.
But the bottom-of-the-table club were already relegated despite being level with second-from-bottom St Brelade, having lost to the reds twice.
St Brelade could still go down if they lose their relegation play-off.
They will face the third-placed side from the Championship, either St Lawrence or Rozel Rovers, in a one-off game on 6 May to decide the final place in the top flight next season.
The Jersey Football Combination is increasing the size of the Premiership from nine to 10 teams.