- Tag results for Brisbane International
The 6-4, 6-2 victory over the American gave a fourth title for the enigmatic 22-year-old Australian, and the first since 2016.
Svitolina beat Belarusian qualifier Sasnovich in a lopsided night final to win her 10th title on the women's elite tour.
Dimitrov, playing his first tournament since winning the season-ending ATP Finals and rising to a career-high No. 3 ranking, dictated terms in the opening set but had few answers later.
Ryan Harrison reached his third tour-level final with a 4-6, 7-6 (5), 6-4 semifinal win Saturday over 18-year-old wildcard Alex De Minaur at the Brisbane International.
Nick Kyrgios rebounded after dropping serve twice in the first set to reach the Brisbane International semifinals with a 1-6, 6-3, 6-4 win over former finalist Alexandr Dologolov.
Raonic, who won the Brisbane title in 2016 and reached the Wimbledon final that year, struggled to find the rhythm against the 18-year-old Minaur.
Nick Kyrgios overcame a knee problem to outlast fellow Australian Matthew Ebden 6-7 (3), 7-6 (5), 6-2 on Wednesday and move into the quarterfinals at the Brisbane International.
Third-seeded Elina Svitolina moved into the Brisbane International quarterfinals with a 6-3, 6-1 second-round win over Croatia's Ana Konjuh on Wednesday.
The former No. 1-ranked Murray had been scheduled to play his first match on Thursday but notified organizers he was pulling out after failing to practice.
The Wimbledon champion was up a set and a break on Tuesday but couldn't close it out in straight sets as Aleksandra Krunic rallied from 5-2 down in the second, winning it in a tiebreaker.
Svitolina was speaking after an impressive 6-2, 6-4 win over Spain's Carla Suarez Navarro in the first round of the Brisbane International.
The fifth-seeded Konta entered the Australian Open tuneup tournament after losing her last four matches in 2017, including a first-round exit at the U.S. Open.
Fourth-seeded Frenchwoman Caroline Garcia was forced to retire with a back injury during her match against compatriot Alize Cornet in the first round of the Brisbane International.
Australian Samantha Stosur's year ended on a sour note after she was bundled out of her home state tournament by Brisbane International seventh seed Anastasija Sevastova on Sunday.
Former world number one Andy Murray will make his long-awaited return to the ATP Tour in the Brisbane International.