[6] In 2008, despite playing the final of Baton Rouge Challenger with partner Ryan Harrison,[5] due to his singles performance Venus closed the year at the 1752nd position on the South African Airways ATP rankings.
Venus's mixed doubles campaigns at Grand Slam events also improved through the year, losing in the first round in Melbourne, in the second in Paris, and in the third at Wimbledon, before going all the way to the final in New York.
Venus and Chan won their first mixed doubles match comfortably, but were well-beaten in the second round by eventual semifinalists, Marcelo Demoliner and María José Martínez Sánchez.
Venus and Klaasen beat Colombians Juan Sebastián Cabal and Robert Farah in the first round, but were then well-beaten by eighth seeds Ivan Dodig and Rajeev Ram.
In Madrid they made it through to the quarterfinals, losing to Nikola Mektić and Alexander Peya, while in Rome they lost in the second round to Jamie Murray and Bruno Soares.
Ironically, it had been Klaasen who was on the losing end that day, and his then partner, Dominic Inglot, faced the pair in the final, this time alongside Croatian Franko Škugor.
Wimbledon would be another milestone in Venus's career, as he came so close to winning his second major title, and was only one step further back in pursuit of a mixed doubles crown as well.
In the men's doubles, Venus and Klaasen had straightforward wins in the first two rounds, followed by marathon five set encounters in the next two over Leonardo Mayer and João Sousa and then Jamie Murray and Bruno Soares, the latter a nice revenge for the loss in Rome.
In the men's event he and Klaasen were seeded eighth, but lost to Máximo González and Nicolás Jarry in straight sets after beating singles specialists Lukáš Lacko and John Millman.
They defeated former Grand Slam champions Laura Siegemund and Rohan Bopanna in the first round, before falling to Raluca Olaru and Franko Škugor in the second, beaten 16–14 in a monumental match tie-break which lasted 22 minutes.
Next stop on the tournament circuit was the Japan Open in Tokyo, where Venus and Klaasen went all the way to the final, where they were beaten by Ben McLachlan and Jan-Lennard Struff.
They got their revenge on that pair just days later, when beating them in the second round of the Shanghai Masters, before losing yet another close match with Łukasz Kubot and Marcelo Melo.
Venus and Klaasen started the year in Auckland at the ASB Classic, where they had revenge for their loss in Miami to the Bryan brothers by beating them comfortably in the semifinal, before once again finding Ben McLachlan and Jan-Lennard Struff too strong in a final, being beaten 6–3, 6–4.
Seeded sixth, Venus and Klaasen lost the first set in their first round match at the Australian Open, but took the next two to beat Bradley Klahn and Mikhail Kukushkin.
They then had straight sets wins over Marcus Daniell and Wesley Koolhof in the second round, and Marcelo Demoliner and Frederik Nielsen in the third, before surprisingly being beaten in the quarterfinals by Leonardo Mayer and João Sousa, 6–4, 7–6(6).
Venus had another new partner in the mixed doubles, rising American star Danielle Collins, but they were beaten in the first round by Chan Hao-ching and Jean-Julien Rojer.
After consecutive first-round losses in Rotterdam, Marseille and Dubai, Venus and Klaasen turned the corner at the first ATP Masters 1000 event of the year, in Indian Wells.
What was initially thought to be a sprain at worst turned out to involve enough damage to the ankle ligaments to put his whole European clay court campaign in jeopardy, but he recovered so well that he was fit enough to return for the Italian Open a month later.
Venus teamed up again with Katarina Srebotnik for the mixed doubles, where they were seeded 10th and received a bye to the second round, where they lost a really tight match to the French Open semi-finalists Nadiia Kichenok and Aisam-ul-Haq Qureshi.
The first stop in preparing for the US Open was in Washington, where Venus and Klaasen took out their second ATP 500 title for the year, beating Jean-Julien Rojer and Horia Tecău in the final.
In the men's doubles, Venus and Klaasen had an easy first round win against Adrian Mannarino and Gilles Simon, the latter being badly hampered by an injury which he had picked up in his previous singles match.
In the second round, though, they were beaten in a major upset by Miomir Kecmanović and Casper Ruud, in a match where their percentage of first serves in play was way below their opponents' level.
They lost in the quarterfinals of the Shanghai Masters to Jamie Murray and Neal Skupski, and then found Dodig and Polášek too strong once again, this time in Basel.
[7][8] Top seeds in their first appearance together, Venus and Peers were surprisingly beaten in two tie-break sets by Artem Sitak and Divij Sharan in the first round of the ASB Classic.
They then went to the new ATP250 tournament in Santa Margherita di Pula, Sardinia, where they lost to eventual champions Marcus Daniell and Philipp Oswald in the semi-final.
They lost in the first round in Vienna to French Open champions Kevin Krawietz and Andreas Mies, and in the quarter-finals of the Paris Masters to Félix Auger-Aliassime and Hubert Hurkacz, who would go on to win the title.
Seeded tenth, Venus and Peers lost in the third round of the Australian Open to the fifth-seeded defending champions, and eventual runners-up, Rajeev Ram and Joe Salisbury.
[9] At the 2020 Summer Olympics he won the bronze medal in doubles with fellow New Zealander Marcus Daniell defeating Austin Krajicek and Tennys Sandgren.
They went on to win the tournament and their third title of the season with a straight sets victory over the third seeds and clay court specialist pairing of Marcel Granollers and Horacio Zeballos.
[23] At the 2024 Queen's Club Championships, he combined with Neal Skupski to win the doubles title, defeating Taylor Fritz and Karen Khachanov in the final.