Naomi Osaka, Qinwen Zheng, and Anna Kalinskaya all advanced to the second round of the 2026 Bad Homburg Open on Monday, while former champion Diana Shnaider suffered a first-round upset.
Naomi Osaka opened her grass-court campaign with a 6-4, 6-1 victory over Poland's Magdalena Frech. The match carried over from Sunday after rain suspended play, where Osaka led 5-4 in the first set. The four-time Grand Slam champion subsequently needed just one hour and 34 minutes to seal the win, taking seven of the final eight games.
Osaka now faces either Elise Mertens or Alexandra Eala in the second round. Her best grass-court result remains a 2018 Nottingham semifinal loss to Ash Barty.
In the day's biggest upset, world No. 25 Clara Tauson knocked out seventh-seeded Diana Shnaider 6-4, 6-4 in 1 hour and 45 minutes. The Dane converted four of 10 break points to snap a seven-match losing streak.
Diana Shnaider — the 2024 Bad Homburg Open champion — has now lost both of her opening-round grass-court matches this year.
