Canada's Milos Raonic defeated Czech Tomas Berdych 7-6 (7-4), 6-3 in the Thailand Open final on Sunday.
The win over Berdych, the top seed in Bangkok, gave Raonic his second title of the season.
Berdych, the world No. 6, was seeking his first title of the season against the big-serving Raonic, who finished the match with 18 aces.
The 22-year-old Raonic, the world No. 11, needed just one hour and 17 minutes to seal the upset against Berdych.
Berdych struggled with his service game, hitting only four aces, well below his average going into the match.
The 28-year-old Berdych and Raonic had hit 51 aces and 63 aces, respectively, going into the championship match in Bangkok.
The Thailand Open is part of the ATP Tour's post-U.S. Open Far East swing, which also includes events in Malaysia, China and Japan. EFE