The former Lakeside champion broke Searle's throw with a stunning 11-dart leg in the tenth leg to claim the victory. Beaton beat Aden Kirk, Brendan Dolan and Steve West en route to the final round.
Four spots in Vienna are up for grabs as players compete for the chance to join the likes of World Series event winners Michael van Gerwen, Rob Cross, Peter Wright, Gary Anderson, Michael Smith and Mensur Suljovic in the three-day event from November 2-4.
Final Round
Steve Beaton 6 | 4 Ryan Searle
Keegan Brown 0 | 0 Ron Meulenkamp
Darren Johnson 0 | 0 Ross Smith
Kim Huybrechts 0 | 0 Maik Langendorf/Ronny Huybrechts
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