Artem Sitak

Current to 2020 Australian Open. Subsequent events have been cancelled due to COVID-19.

With a new partner in the left-handed American Austin Krajicek, Sitak began 2019 in Brisbane, where they lost in the quarter-finals to Rajeev Ram and Joe Salisbury. They also lost in the quarter-finals in Auckland, this time to Bob and Mike Bryan, the former playing his first tournament since being injured in Monte Carlo and subsequently having surgery to replace his hip.

Two more first round losses followed before Sitak reunited with Divij Sharan. Although losing their first match together, they reached the quarter-finals of the Japan Open. They made the Paris Masters as alternates, beating Pavić and Bruno Soares in the first round before losing to Jérémy Chardy and Fabrice Martin in the second. Two first round losses in Challenger events ended the 2019 season for Sitak.

From there they travelled to Basel for the Swiss Indoors Open, where they lost in an upset result in the semi-finals to Mischa and Alexander Zverev. They finished their season at the Paris Masters where, with only an hour's notice, they again took the court as an alternate. They beat Feliciano and Marc Lopez in the first round, but lost in straight sets in the second round to the best team in the world for 2018, Mike Bryan and Jack Sock.

Sitak's long-running doubles partnership with Nicholas Monroe came to an end after Wimbledon in 2017, and he subsequently teamed up with Dutch player Wesley Koolhof. They reached the final in Atlanta, losing to the Bryan brothers, and lost in the first round at the US Open before winning a Challenger event in Szczecin, Poland, and losing another ATP final, this time in Metz, to Julien Benneteau and Édouard Roger-Vasselin.

They also got into the Italian Open as an alternate pair, and this time made it to the second round, losing to eventual champions Juan Sebastián Cabal and Robert Farah. Another first round loss, this time as second seeds in Geneva, preceded their attempt at the French Open, where Krajicek dropped a bombshell just a couple of days before their first round match by announcing that he would be ending their partnership after this tournament. Seeded 16th, the pair didn't have a single practice together before losing in the first round to Hsieh Cheng-peng and Christopher Rungkat. He and Makoto Ninomiya played mixed doubles together, but lost in a first round match tie-break to eventual semi-finalists Nadiia Kichenok and Aisam-ul-Haq Qureshi.

Sitak partnered Polish tennis player Mateusz Kowalczyk to win the 2014 MercedesCup doubles title, defeating Philipp Oswald and Guillermo Garcia-Lopez 2–6, 6–1, 10–7 in the final.

Starting the new year in Brisbane, Sitak and Koolhof lost in the semi-finals to Leonardo Mayer and Horacio Zeballos. They lost in the first round in Auckland to Michael Venus and Raven Klaasen, and then 7–6, 4–6, 4–6 in the second round of the Australian Open to the eventual winners, Oliver Marach and Mate Pavić. Although they were not in the original draw for the Mixed Doubles, Sitak and Olga Savchuk teamed up as alternates after an injury to Anastasia Rodionova in her women's doubles match meant that she and Marach could not participate. They were beaten in a first-round match tie-break by Nadiia Kichenok and Marcel Granollers.

Sitak and Koolhof then went to Newport Beach in California where, as top seeds, they lost in the first round, 2–6, 1–6, to Treat Huey and Denis Kudla. After that came the Davis Cup where, in Tianjin, Sitak and Marcus Daniell lost their doubles tie to the lowly-ranked Chinese pair of Gong Mao-Xin and Zhang Ze. Sitak and Koolhof then lost in the quarter-finals at Montpellier before going all the way to the final in the New York Open, being beaten by Max Mirnyi and Philipp Oswald in a match tie-break. They followed that up with a first round loss at Delray Beach to Scott Lipsky and Divij Sharan.

Their up and down season continued in Brazil, where they reached the final in São Paulo, but were beaten in straight sets by Federico Delbonis and Máximo González. Their next stop was Irving, Texas, where they lost in the semi-finals of the ATP Challenger to Alexander Peya and Philipp Petzschner. Moving to Europe, and playing in the Alicante Challenger in Spain as preparation for the European clay court season, they won their second title together when they beat Guido Andreozzi and Ariel Behar 6–3, 6–2, in the final, but they lost in the first round of their next tournament in Marrakech. In the Hungarian Open they beat the top seeds Nikola Mektic and Alexander Peya in the first round, but lost in the second to Marcin Matkowski and Sitak's former partner Nicholas Monroe.

Their next tournament was at Estoril where they went all the way to the final before losing to the British pair of Kyle Edmund and Cameron Norrie, 2–6, 4–6. They then lost in the first round of the Bordeaux Challenger tournament after Sitak had been hit in the right ear by a smash from Radu Albot, and also in the first round in Geneva, the last tournament before the French Open.

Moving on to Washington DC for the Citi Open, Sitak and Sharan beat Jamie Cerretani and Leander Paes in the first round before losing to Jamie Murray and Bruno Soares in the quarter-finals. Sitak then entered the Toronto Masters with Stefanos Tsitsipas, and received a first-round call up as an alternate for a withdrawn pair. They ended up playing Michael Venus and Raven Klaasen, and lost 6–4, 6–4. Moving on to Cincinnati for the next Masters event, the pair qualified for direct acceptance. In the first round they were drawn against Ivan Dodig and Robin Haase, and lost in a match tie-break.

In his last tournament before the US Open, Sitak teamed up with Aisam-ul-Haq Qureshi at Winston-Salem. They beat Max Mirnyi and Philipp Oswald, then Marcelo Demoliner and Santiago Gonzalez, before falling to Jamie Cerretani and Leander Paes in the semi-final. In the US Open, Sitak and Sharan lost to eventual runners-up Lukasz Kubot and Marcelo Melo in the second round, while Sitak and Lyudmyla Kichenok were beaten in a tight first round battle in the mixed doubles, losing 10–8 in the match tie-break to fourth seeds Latisha Chan and Ivan Dodig.

The US Open was followed by New Zealand's Davis Cup tie against Korea in Gimcheon, where Sitak and debutant Ajeet Rai were successful in their doubles rubber. However, New Zealand lost the tie 3–2, and were relegated to Group II of the Asia/Oceania zone for the first time in five years. Dashing back to France for what turned out to be just one match, Sitak, again with Qureshi, lost in the first round at Metz to Oliver Marach and Jurgen Melzer. Reunited with Sharan a week later in China, they were upset in the first round of the Chengdu Open by Austin Krajicek and Jeevan Nedunchezhiyan.

The Australian Open also saw them record a win and a loss, beating Leander Paes and Miguel Ángel Reyes-Varela in the first round, but losing a tight match to eventual semi-finalists Ryan Harrison and Sam Querrey in the second, 6–4, 7–6. Sitak had another new partner in the mixed doubles, teaming up with former World doubles number one Ekaterina Makarova. Seeded eighth, they lost in the first round to Andreja Klepač and Édouard Roger-Vasselin.

Note: walkover victory when Pakistan abandoned the tie in 2013 is not counted as a match played

Sitak began 2011 under the New Zealand flag and received a wildcard into the 2011 Heineken Open qualifying, where he was defeated by Frenchman Ludovic Walter 6–3, 6–4 in the first round.

Sitak made his first junior Grand Slam appearance at the age of 15 at the 2002 Australian Open where he was beaten in straight sets by Australian Christopher Roman. Sitak's last junior tournament came a year later at the 2003 Australian Open where he was eliminated by Korean Suk Hyun-Joon in the first round.

Sitak began his senior career in 2002 at a challenger event in Togliatti, Russia, where he received a wildcard into the main draw but fell in the first round to Thomas Blake, older brother of former top 10 player James Blake. Sitak's first title came in 2005 in a Russian futures tournament, where he defeated Pavel Chekhov 4–6, 6–4, 6–4 in the final.

Coached during the 1990s by Santini, as a 13-year-old in 1999, Sitak received a wildcard into the main draw of an ITF junior tournament in Russia as a 13-year-old in 1999. He was defeated by Evgeni Smirnov 6–4, 6–1. The following year he entered the qualifying draw of the same tournament, and defeated future ATP top 50 player Denis Istomin 6–0, 6–1 to win his first ITF junior match. Sitak was taken out in the third and final round of qualifying by a future ATP top 100 player Teimuraz Gabashvili 6–4, 7–5.

Artem Yurievich Sitak (/ˈ ɑːr t ə m ˈ s ɪ t æ k / ART -əm SIT -ak; Russian: Артём Юрьевич Ситак , romanized: Artyom Sitak; born 8 February 1986) is a Russian-born New Zealand professional tennis player. On 11 August 2008, he reached his highest ATP singles ranking of World No. 299, whilst his highest doubles ranking of World No. 32 was reached on 10 September 2018, after the US Open. He is the younger brother of Dmitri Sitak, who was also a professional tennis player.

Sitak teamed up with Erlich for the Hall of Fame Championships in Newport, marching imperiously to the final, where they very quickly swept aside clay-court specialists Marcelo Arevalo and Miguel Ángel Reyes-Varela. Sitak maintained that it was their experience which counted - it was the 39th ATP final for Erlich, and the 11th for Sitak, but just the first for both their opponents.