World quantity three Coco Gauff beat Ekaterina Alexandrova 7-5 6-3 in her debut on the China Open.
American Gauff, 19, had not performed since successful her first Grand Slam title on the US Open in September.
She prolonged her unbeaten run to 13, having received 19 of 20 matches since a first-round exit at Wimbledon and faces world quantity 48 Petra Martic subsequent.
Elsewhere, Petra Kvitova criticised the scheduling after her 6-4 7-5 second-round loss to Liudmila Samsonova.
The Czech two-time Wimbledon champion had a late end to her first-round match on Sunday towards China’s Wang Xiyu and was again in motion on Monday.
She mentioned on X, previously generally known as Twitter: “Removed from superb to complete my match on the @ChinaOpen at 1am after which be again on the schedule at NB 5:30pm the following day when some first spherical matches had but to be performed.
“I’ve at all times performed the game with large respect and barely converse out, however this time I really feel strongly sufficient to say that there *has* to have been a fairer possibility. Please do higher in your gamers @WTA.”
BBC Sport has approached the WTA for remark.
World quantity two Iga Swiatek reached the second spherical with a 6-4 6-3 win over Sara Sorribes Tormo.
In different first-round matches, fifth seed Elena Rybakina beat Qinwen Zheng 6-1 6-2 whereas Wimbledon finalist Ons Jabeur progressed after overcoming Ashlyn Krueger 6-3 6-4.