12:52 CET - That's that for today's tennis, but there's plenty more if it to come tomorrow, with Casper Ruud and Madison Keys two of many top players taking to the court.
We'll be back with a new tracker to cover all the action from around 07:00 CET, so join us then!
12:37 CET - World number eight and third seed Mirra Andreeva is also through in Adelaide thanks to a comfortable 6-3, 6-1 win over Marie Bouzkova.
12:26 CET - Victoria Mboko has won a real battle with Anna Kalinskaya in Adelaide, with the world number 17 prevailing 6-2, 3-6, 7-6 (6) after two hours and 23 minutes. Kalinskaya had two match points in the final set, but couldn't convert them.
In Hobart meanwhile, the match between Emma Raducanu and Camila Osorio has been stopped for the day due to rain, with the top seed leading the Colombian 6-3, 2-4. The clash will be finished tomorrow.
11:05 CET - Seventh seed Stefanos Tsitsipas has been dumped out in Adelaide at the first hurdle, after losing a tight one 7-6, 7-6 against home hope Aleksandar Vukic.
The Greek had put in some promising performances during the United Cup, but it's back to the drawing board now, ahead of the Aus Open. That's the end of the men's action in South Australia for the day.
Over in Auckland, eighth seed Nuno Borges is through to the second round after beating Tomas Martin Etcheverry 7-5, 3-6, 7-6.
10:05 CET - Lucky loser Katerina Siniakova has progressed in Adelaide after beating Dayana Yastremska 6-0, 6-1 in less than an hour.
Siniakova gained another life after Sorana Cirstea withdrew from the tournament. Earlier, Yulia Putintseva also progressed in South Australia.
08:54 CET - Xinyu Wang has progressed to the second round in Hobart thanks to a convincing 6-2, 6-3 triumph over Talia Gibson, while qualifier Andrea Vavassori has stunned Gabriel Diallo 6-3, 7-6(4) in Adelaide.
08:49 CET - Hungary's Fabian Marozsan is through in Auckland after a comeback 5-7, 6-3, 6-4 win against defending champion Gael Monfils.
07:30 CET - Good morning and welcome to our coverage of Tuesday's tennis in Australia and New Zealand!
There's plenty to catch you up on from overnight, with former Wimbledon champion Marketa Vondrousova seeing off seventh seed Liudmila Samsonova in Adelaide 6-1, 4-6, 6-2, and Diana Shnaider claiming an impressive straight-sets victory over Leylah Fernandez.
Maya Joint, Kimberly Birrell and Tereza Valentova have also progressed in Adelaide, while on the men's side of the tournament, eighth seed Tomas Machac eased past James Duckworth 6-3, 6-3 in just 72 minutes.
Elsewhere, Tatjana Maria proved too strong for 45-year-old Venus Williams in Hobart, with the German prevailing 6-4, 6-3, while Peyton Stearns and Iva Jovic secured superb wins over Barbora Krejcikova and Janice Tjen, respectively.
Finally, in Auckland, Giovanni Mpetshi Perricard, Marcos Giron and Hamad Medjedovic have all moved through to the second round.
Check out the full schedule for tournaments in Adelaide (ATP), Adelaide (WTA), Auckland (ATP) and Hobart (WTA) via the links.