Ben Shelton won the National Bank Open on Thursday night for the third and biggest title of his young career Thursday night, rallying to beat 11th -seeded Karen Khachanov of Russia 6-7 (5), 6-4, 7-6 (3).

TORONTO — American Ben Shelton is the winner of the men's singles title at the National Bank Open. He beat Russia's Karen Khachanov 6-7 (5), 6-4, 7-6 (3) in the championship match at Sobeys Stadium. It's his first ATP Tour title of the season and third of his career.

Ben Shelton has captured his first Masters 1000 title. The American beat Russian Karen Khachanov 6-7 (5), 6-4, 7-6 (3) on Thursday at the National Bank Open presented by Rogers to win the men's singles final. Shelton's victory marks the fourth year in a row that the National Bank Open champion is a first-time Masters 1000 winner.