Ostapenko eased to a 6-0 6-4 win in just 65 minutes, which is expected to take her up to No.13 in the rankings, the first time the former world No.5 will have been in the top 20 since October 2018.
An impressive week for the Latvian has seen her beat Sofia Kenin, Iga Swiatek, Petra Kvitova, and Simona Halep on her way to the final, and she never looked like slipping up in the showpiece.
It was consistency that made the difference, with Ostapenko winning 63.6 per cent of points on her first serve, but also an impressive 58.3 per cent on her second.
She took the first set in just 23 minutes, with her serve allowing her to zip through games with ease as Kudermetova had no answer to it, or indeed her returns.
The Russian recovered well in the second set and earned an early break, but things soon swung back to take Ostapenko to 5-3 and serving for the title. Kudermetova managed to break, only for her opponent to do the same to seal the win.