Nathan Aspinall thrashed Rob Cross to claim a maximum five points from night five of Premier League Darts in Exeter.
Aspinall defeated his fellow Englishman 6-2, having reached his second straight nightly final by beating Peter Wright and world champion Luke Humphries.
Cross is third in the league table courtesy of his first appearance in a final in this year’s event.
Michael van Gerwen’s lead in the table was reduced to six points following his quarter-final loss to Humphries.
Van Gerwen was bidding for a fourth successive night win after triumphs in Berlin, Glasgow and Newcastle, but was beaten 6-3 in the opening quarter-final.
Aspinall failed to win a match in the first three weeks of the competition, but two final appearances in a row have catapulted him into the top four.
He told Sky Sports: “I’m just very happy. In the past two weeks, I’ve really dug deep.
“Everyone knows I’m a fighter. I’ve been down for the first three weeks, but a final and a win in the past two weeks – I’m over the moon.”