Tennis: Michael Venus through to ATP Masters 1000 final

South Africa's Raven Klaasen, left, and New Zealand's Michael Venus. Photo / AP.

Kiwi Michael Venus is through to his first ATP Masters 1000 final after a stunning win over the world's top ranked doubles team in Toronto.

Venus and his South African partner Raven Klaasen have beaten top seeds Oliver Marach and Mate Pavic 3-6 7-6 (5) 10- in 1 hour 36. The victory follows wins over 5th seeds Lukasz Kubot and Marcelo Melo and their Wimbledon final conquerors Mike Bryan and Jack Sock.

Marach and Pavic have been the dominant team on the ATP World Tour this year, winning four titles including the Australian Open after starting the year with victories in Doha and at Auckland's ASB Classic and they've already booked their place in the season ending ATP World Tour Finals in London.

So this victory finished off with a brilliant forehand return of service winner from Venus was superb as he and Klaasen won eight straight points in the match tie break to clinch the win.

After failing to save the only break point against their serve in the first set, Venus and Klaasen dominated the second but still needed a tie breaker to win it. They squandered a 4-2 lead when Venus was broken and had a couple of set points at 5-4 on Pavic's serve but couldn't close it out. Venus made no mistake serving at 6-5 in the tie break. The Kiwi and South African were aided by Marach and Pavic serving eight double faults between them in the match.

Venus and Klaasen have hit a purple patch of form, reaching the Wimbledon final, Washington ATP 500 semis and now the Toronto final together in the last few weeks.

They have improved their win loss record to 32 and 16 since forming their partnership at the start of the season.

They will face either the second seeds Finland's Henri Kontinen and Australian John Peers or Croatian Nikola Mektic and Austrian Alexander Peya in the final. It will be another big pay day for Venus who will split $316,000 US with Klaasen for winning the tournament and $154,710 if they lose the final.

Venus and Klaasen and Klaasen are up to 5th in the race to qualify for the season ending ATP World Tour Finals, with the top eight teams at the end of the season featuring at London's O2 Arena in November.

Individually Venus is projected to climb two places to 17 in the world doubles rankings by making the final and if he wins the title, could rise to 13.

Meanwhile the draw is out for next week's Cincinnati Masters with Venus and Klaasen pitted against French singles players Richard Gasquet and Adrian Mannarino in the first round.

Fellow Kiwi Artem Sitak teaming up with Greek singles star Stefanos Tsitsipas have been drawn against Croatian Ivan Dodig and Dutchman Robin Haase.