Bodmin Town have completed a league and cup double after a 2-1 win over Tavistock in the Throgmorton Cup final on Monday.
Nick Campbell was the hero for the Southwest Peninsula League champions scoring both goals before Will Stringer got one for the Devon side.
In Saturday's SWPL fixtures Saltash United secured second place after a 2-1 win over Falmouth Town.
Falmouth dropped to fifth as Torpoint Athletic won 3-1 at Buckland Athletic.
Plymouth Parkway are guaranteed third place despite not kicking a ball after Falmouth's loss.
Tavistock won their penultimate game as they beat Holsworthy 2-0 in a warm-up match before Monday's final.
Holsworthy have completed their games and are third from bottom.
Champions Bodmin also had a match before the cup final, winning 1-0 at Elburton Villa.
Cullompton finished the season as the bottom side after losing a thrilling match 4-3 at home to St Blazey, who end their campaign in eighth.
Launceston and Newton Abbot Spurs drew 1-1 in the league's other game.
And Dawlish Town won the St Lukes Challenge Bowl after winning 3-1 at Willand Rovers. Darren Vicary got two for Dawlish.
South West Peninsula League results - 3 May
Buckland Athletic 1-3 Torpoint Athletic
Cullompton Rangers 3-4 St Blazey
Elburton Villa 0-1 Bodmin Town
Launceston 1-1 Newton Abbot Spurs
Saltash United 2-1 Falmouth Town
Tavistock 2-0 Holsworthy
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