21:43 CET - Darkness has prevailed in 's-Hertogenbosch with the match between top seed Luidmila Samsonova and Canadian qualifier Carson Branstine suspended for the night.
They will come back tomorrow with the scoreline level at one set apiece 4-6, 7-5, 0-0.
20:11 CET - Big-serving Reilly Opelka is the latest man through in 's-Hertogenbosch after the American defeated Jesper De Jong 6-7(5), 7-6(5), 6-2 in two hours and 40 minutes.
Meanwhile, on the women's side of the tournament, Greet Minnen has stunned Danielle Collins 4-6, 6-1, 6-2 and second seed Ekaterina Alexandrova is through after seeing off Mariam Bolkvadze 6-3, 6-4.
19:35 CET - Diana Shnaider and Rebecca Sramkova are through at Queen's after convincing straight-set wins over Magdalena Frech and reigning Wimbledon champion Barbora Krejcikova respectively.
18:33 CET - Over in Stuttgart, Corentin Moutet has progressed after a hard-fought 6-4, 6-7(3), 6-3 victory over experienced Italian Fabio Fognini, while Learner Tien is also through after his opponent Yoshihito Nishioka was forced to retire with injury at one set apiece.
17:59 CET - Home favourite Emma Raducanu has eased through her opening match at Queen's, with the former US Open champion dispatching Cristina Bucsa in straight sets, 6-1, 6-2.
McCartney Kessler is also through to the second round after a relatively routine 6-2, 6-4 triumph over Britain's Francesca Jones.
17:43 CET - Wildcard Bianca Andreescu is through in 's-Hertogenbosch after an emphatic 6-1, 6-3 win over Joanna Garland, while Bernarda Pera and Kimberly Birrell have also progressed in the Netherlands.
16:46 CET - Another Brit is safely through at Queen's, with Katie Boulter recovering from a second-set wobble to defeat Ajla Tomljanovic 7-6(4), 1-6, 6-4 in two hours and 24 minutes.
Meanwhile, in the men's tournament at 's-Hertogenbosch, Zizou Bergs and Mackenzie McDonald have both progressed.
16:23 CET - After her first-round match at Queen's was suspended late last night, sixth seed Karolina Muchova has completed the job this afternoon, battling past Maddison Inglis in three tight sets, 7-6(5), 3-6, 6-4.
16:10 CET - Home favourite Heather Watson is through to the second round at Queen's after an impressive 6-4, 6-3 triumph over Yulia Putintseva.
Elsewhere, Quentin Halys and Justin Engel have progressed in Stuttgart after three-set victories over Lorenzo Sonego and James Duckworth respectively, while Suzan Lamens is through in 's-Hertogenbosch.
13:07 CET - Fifth seed Denis Shapovalov has been dumped out in Stuttgart after the Canadian fell to a 6-4, 2-6, 6-0 defeat against Arthur Rinderknech.
Marton Fucsovics is also through in Germany, with the Hungarian battling past Yannick Hanfmann in straight sets, 7-5, 6-4.
12:13 CET - The first result from Stuttgart is unfortunately a retirement with Damir Dzumher withdrawing from his game against qualifier Pierre-Hugues Herbert whilst trailing 6-4, 3-0.
09:57 CET - We're just over an hour away from play getting underway today, as fifth seed Denis Shapovalov takes on Arthur Rinderknech in Stuttgart at 11:00 CET.
Elsewhere, there are plenty of big names kicking off their grass-court campaigns, including Emma Raducanu and Wimbledon champion Barbora Krejcikova at Queen's, as well as Hubert Hurkacz in 's-Hertogenbosch.
Check out the full schedule for tournaments in London, Stuttgart, 's-Hertogenbosch (ATP) and 's-Hertogenbosch (WTA) via the links.
09:00 CET - Good morning and welcome to our coverage of today's tennis!