Rosmalen - American Alison Riske overcame a first set battering to beat local favourite and world No 4 Kiki Bertens 0-6, 7-6 (7/3), 7-5 to win the 's-Hertogenbosch final on Sunday.
This was Riske's second career WTA win after victory in 2014 at Tianjin and comes after she had lost her last three encounters with Bertens.
After a 6-0 hammering in the opening set Riske, ranked 61st in the world, showed form and character on the grass court as Wimbledon swings in to view.
This was also a 10th straight win on grass for Riske, who succeeds Serbia's Aleksandra Krunic as champion.
Results from the 's-Hertogenbosch ATP/WTA tournament on Sunday (x denotes seeding):
Adrian Mannarino (FRA) bt Jordan Thompson (AUS)
Jordan Thompson (AUS) bt Richard Gasquet (FRA x8) 7-5, 6-3
Adrian Mannarino (FRA) bt Borna Coric (CRO x2) 4-6, 6-3, 7-6 (7/4)
Alison Riske (USA) bt Kiki Bertens (NED x1) 0-6, 7-6 (7/3), 7-5