Iga Swiatek won her fourth consecutive title and extended her winning run to 23 matches by beating Aryna Sabalenka in the Stuttgart Open final.
The Polish world number one won 6-2 6-2 against her fourth-ranked opponent.
It means Swiatek adds the clay-court title to wins in Doha, Indian Wells and Miami to consolidate her position as favourite for next month's French Open.
The 20-year-old, who won at Roland Garros in 2020, has not lost since the Dubai Tennis Championships in February.
Swiatek had to save a break point in the opening game but secured a break of her own a game later and took the opening set in 37 minutes.