The World No. 36 downed Vasek Pospisil 6-2, 7-6(6) in 83 minutes to clinch a 2-0 victory for Kazakhstan against Canada. Bublik won 84 per cent (42/50) of his first-serve points and hit five aces in a dominant display.
Earlier, Mikhail Kukushkin laid the foundations for Kazakhstan’s victory, edging Brayden Schnur 6-3, 6-7(5), 7-5 in the first match of the tie. The World No. 183 recovered from squandering three match points at 6-5 in the second set as he raised his level in the decider to triumph.
In the final match of the tie, Andrey Golubev and Aleksandr Nedovyesov sealed Kazakhstan’s win in style, beating Peter Polansky and Schnur 6-4, 6-7(6), 6-1.
Kazakhstan beat Sweden in its opening tie in Group B and has now reached the quarter-finals at the Davis Cup Finals six times.