American Ben Shelton falls in the Swiss Indoors final to France's Giovanni Mpetshi Perricard, who becomes the lowest-ranked champion since the tournament became a tour-level event in 1975.
Top-seeded Qinwen Zheng of China claimed the Toray Pan Pacific Open with a 7-6 (5), 6-3 win over American wild card Sofia Kenin to clinch her place in the WTA Finals next month.
Olga Danilovic powered past American qualifier Caroline Dolehide 6-3, 6-1 in the Guangzhou Open final to seal her first trophy of the season and second of her career.
Former Australian Open champion Sofia Kenin has advanced to the final of the Pan Pacific Open with a 6-4, 6-4 win over ninth-seeded Katie Boulter on Saturday.