Beddoes, the 23-year-old World No.40 from Nottingham, reached the final without dropping a game - and, remarkably, without facing a seeded opponent.
Lust, ranked almost 60 places lower, made her breakthrough in the opening round, beating second seed Deon Saffery, from Wales. The 19-year-old from Maulden in Bedfordshire maintained her giant-killing run by despatching the fifth seed, then her third-seeded compatriot Fiona Moverley before reaching her first WISPA Tour final.
But Beddoes was too strong for her teenage opponent, beating Lust to win the second Tour title of her career.
[1] Emma Beddoes (ENG) bt [Q] Rebecca Botwright (ENG) 11-6, 11-2, 11-5
Victoria Lust (ENG) bt [3] Fiona Moverley (ENG) 7-11, 11-8, 11-9, 11-7
[1] Emma Beddoes (ENG) bt Lisa Aitken (SCO) 11-4, 11-4, 11-4
[Q] Rebecca Botwright (ENG) bt [4] Adel Weir (RSA) w/o
[3] Fiona Moverley (ENG) bt Linda Hruzikova (SVK) 3/2
Victoria Lust (ENG) bt [5] Milou van der Heijden (NED) 11-3, 11-9, 11-4
1st round:
[1] Emma Beddoes (ENG) bt [Q] Emily Whitlock (ENG) 1-0 ret.
Lisa Aitken (SCO) bt [6] Kerri Lancaster (IRL) 7-11, 11-5, 11-5, 11-8
[4] Adel Weir (RSA) bt Kimberley Hay (ENG) 11-6, 11-6, 12-10
[Q] Rebecca Botwright (ENG) bt [8] Leonie Holt (ENG) 11-5, 11-3, 12-10
Linda Hruzikova (SVK) bt [7] Irina Assal (RUS) 11-4, 9-11, 11-6, 11-2
[3] Fiona Moverley (ENG) bt [Q] Stacey Preece (WAL) 7-11, 11-13, 11-8, 12-10, 11-2
[5] Milou van der Heijden (NED) bt [Q] Annabelle Collins-Ballands (ENG) 11-7, 14-12, 16-14
Victoria Lust (ENG) bt [2] Deon Saffery (WAL) 11-8, 10-12, 11-9, 11-7
Issued by iSPORTmedia

Le Sport Open, Colwyn Bay, Wales
[1] Emma Beddoes (ENG) bt Victoria Lust (ENG) 11-9, 11-8, 11-3
Top seed Emma Beddoes triumphed in an all-English climax of the Women's Le Sport Open when shebeat unseeded Victoria Lust 11-9 11-8 11-3 in the final of the $4,000 WISPA World Tour squash event in its maiden year at Le Sport Health & Fitness in Colwyn Bay, Wales.