Martina Hingis and Sania Mirza have yet to lose a match in 2016 and are on the verge of entering unchartered territory. Hingis-Mirza booked a spot in the Sydney semifinals on Wednesday with a straight sets win.

Hingis-Mirza Continue Showtime in Sydney

The top ranked WTA doubles team again showed their class on Wednesday at the Apia International Sydney. Martina Hingis and Sania Mirza extended their win streak to 28 matches by defeating Chen Liang and Shuai Peng 6-2, 6-3. The top seeds were dominant on serve, winning 80 percent of their first serve points. They were broken once, but made up for that by breaking Liang-Peng four times on 13 chances. Hingis-Mirza have now tied Gigi Fernandez and Natasha Zvereva, won 28 matches in a row together back in 1994. Hingis-Mirza face Raluca Olaru and Yaroslava Shvedova next.

Elsewhere in the women's draw in Sydney, 4th seeds Katarina Srebotnik and Timea Babos were upset by the aforementioned pair of Olaru-Shvedova. Olaru-Shvedova stunned the seeds 6-3, 6-2 with a solid display in all aspects of the game. Second seeds Hao-Ching and Yung-Jan Chan are also headed to the semifinals. The Chinese duo smashed Klaudia-Jans Ignacik and Laura Segemund 6-2, 6-2. Third seeds Kristina Mladenovic and Caroline Garcia continued their good week by dismissing Svetlana Kuznetsova and Roberta Vinci 6-4, 6-2. The Chans will meet Mladenovic-Garcia for a spot in the final.

Rain Shortens Hobart International Play

A rainy Wednesday evening in Hobart, Australia completely wiped out the scheduled night session. That left just one doubles match completed. Second seeds Kiki Bertens and Johanna Larsson worked past Misaki Doi and Nao Hibino 7-5, 6-2. Bertens-Larsson saved three set points in the opening set before rallying to score the late break in the 12th game to net the set win. A pair of matches are scheduled for Thursday with Spanish top seeds Anabel Medina Garrigues and Aranxta Parra Santonja set to battle Shuko Aoyama and Makoto Ninomiya. The winners will face Aussies Jarmila Wolfe and Kimberly Birrell in the semis. Christina McHale and Xinyun Han take on Darija Jurak and Nicole Melichar in the other scheduled doubles match.

Polish Pair Upset Melo-Nestor in Sydney

In the men's draw in Sydney, the top seeds continued to fall on Wednesday. A day after top seeds Jean-Julien Rojer and Horia Tecau and the second seeded Bryan Brothers were ousted, third seeds Marcelo Melo and Daniel Nestor joined them on the sidelines. They were beaten by Lukas Kubot and Marcin Matkowski 6-4, 6-3. The Polish duo saved all five of their break points and took advantage of poor second serving from Melo and Nestor. Kubot-Matkowski won 15 of 22 points played off the third seeds' second serves as they moved on to the semifinals. Other quarterfinal action saw Leonardo Mayer and Thomaz Bellucci knock off the team that beat the Bryans on Tuesday. Mayer-Belluci survived a super tiebreak against Jonathan Erlich and Colin Fleming to claim a semifinal spot with a 7-6 (4), 0-6, 10-8 victory. The lone first round match to be completed on Wednesday saw John Peers and Sam Groth team up to take out Simone Bolelli and Pablo Cuevas 6-3, 6-3.

ATP Auckland Results

There were two seeded teams who took the court in Auckland on Wednesday at the ASB Classic. Third seeds Alexander Peya and Philipp Petzschner moved on with a hard fought victory against David Marrero and Guillermo Garcia-Lopez 7-6 (3), 6-3. Fourth seeds Eric Butorac and Scott Lipsky survived a stern test from Jonathan Marray and Aisam-Ul-Haq Qureshi 6-4, 3-6, 13-11. Marray-Qureshi had a match point in the super tiebreak at 9-8, but could not close the match out. Steve Johnson and Sam Querrey made their debut in Auckland with a successful 6-3, 6-4 win over Fabio Fognini and Pablo Andujar. The Americans were better on break points as they converted two of nine against Fognini-Andujar, while saving all six of their own. Elsewhere, New Zealand native Michael Venus and Mate Pavic defeated Chris Guccione and Andre Sa 6-3, 6-2. American duo Donald Young and Nicolas Monroe slipped by a pair of Kiwis, Finn Tearney and Wesley Whitehouse, 7-5, 6-2 and Oliver Marach and Julian Knowle advanced with a 7-6 (6), 6-4 win over Albert Ramos-Vinolas and Victor-Estrella Burgos.

Be sure to catch up on all the doubles results from both the ATP and WTA Tours each day on VAVEL with The Daily Doubles.