Roger Federer brushed aside the challenge of rising star Alexander Zverev to clinch his ninth Gerry Weber Open title in Halle.
The 35-year-old Swiss required just 53 minutes to complete a 6-1 6-3 victory which also gave him his fourth ATP title of the year to date.
Federer's victory answered questions about his recent lay-off, which ended in a shock defeat to Tommy Haas on his comeback in Stuttgart this month.
The 20-year-old Zverev had no answer to Federer's inch-perfect execution and was broken three times in a lightning-fast first set.
Zverev did finally set a break point on the Federer serve in the first game of the second set, but it passed by and Federer raced on to complete victory.