Draper becomes the first Brit to raise the trophy in Vienna since Andy Murray in 2016.
Olga Danilovic defeated qualifier Caroline Dolehide 6-3, 6-1 to capture the Guangzhou Open crown, her first Tour-level title in six years.
Zheng Qinwen zapped 16 aces defeating Sofia Kenin 7-6(5), 6-3 to collect her third title of the year at the Toray Pan Pacific Open.
The 22-year-old remained perfect against Musetti and reached his fourth ATP final .
The American will face Olga Danilovic for the title at the Guangzhou Open.
Ben Shelton saved four set points in the second set tiebreaker subduing Arthur Fils 6-3, 7-6(9) to battle into his third career final at the Swiss Indoors Basel.
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