06:02 CET - Storm Hunter defeats Katerina Siniakova 7-6, 4-6, 6-3 to advance in Mexico after a lengthy rain delay.
04:50 CET - Play has resumed for the Storm Hunter-Katerina Siniakova match following a rain delay.
04:45 CET - After a hard-fought match, Camila Osorio goes on to defeat Kamilla Rakhimova 7-5, 7-5 as she advances to the Round of 16 in Mexico.
04:20 CET - The match between Storm Hunter and Katerina Siniakova in Mexico is facing a rain delay. Hunter took the first set 7-6, but is down 2-3 in the second set.
02:50 CET - Beatriz Haddad Maia gets the win on her home court in Brazil after defeating Miriana Tona in straight sets 6-1, 6-1.
02:40 CET - Staying in Mexico, Rebecca Marino defeats Martina Trevisan in straight sets 6-2, 6-3, while Emiliana Arango wins her match 6-0 after Magda Linette retired shortly after the first set as she deals with a knee injury.
01:35 CET - Over in Mexico, Elsa Jacquemot beats Maria Sakkari 6-2, 6-0 after a very rough match from Greece's own. Sakkari didn't win a single return game and only took 2-of-14 total games.
01:30 CET - In a match with zero aces and 11 total double faults, Alexandra Eala takes down Yasmine Mansouri in straight sets 6-0, 6-3 out in Sao Paulo.
23:38 CET - Sixth seed Tatjana Maria has advanced in the first result of the night in Guadalajara - where rain continues to cause delays - with a 6-4, 6-2 win over Zeynep Sonmez, while Laura Pigossi and Ana Candiotto have advanced in Sao Paulo.
21:52 CET - It's been a good start to the evening for the seeds in Sao Paulo, with Francesca Jones now beating Lina Glushko 4-6, 6-2, 6-3.
Berfu Cengiz is also through thanks to a 6-1, 6-2 win over Jasmin Ortenzi.
20:45 CET - Fifth seed Renata Zarazua has advanced in Sao Paulo with a 6-2, 6-1 win over Brazilian wildcard Luiza Fullana, while eighth seed Panna Udvardy has beaten Anna Sinclair Rogers 6-2, 6-3.
16:40 CET - Hello and welcome to Flashscore's coverage of today's tennis!
Our focus remains on Latin America and the action in Sao Paulo and Guadalajara specifically, which will begin in around two hours.
Across the night, we'll see former top-10 players Maria Sakkari, Beatrice Haddad Maia and Sloane Stephens all take to the court across the two tournaments.
Bring it on!