Former World No.7 Belinda Bencic continued her comeback from injury by winning the WTA EA Hua Hin Championship - and rose 45 places in the rankings.
The Swiss star is now the World No.120 - and has now won two of the four tournaments in which she has competed since her five-month layoff due to injury.
There are plenty of rankings risers in the Top 200 this week - here are some of the most notable:
Mihaela Buzarnescu (+4, No.72 to No.68): After her win in Poitiers at the end of October, the Romanian followed it up with a run to the final at the Ando Securities Open Tokyo, where she lost to Zhang Shuai.
Monica Niculescu (+22, No.100 to No.72): The Romanian is back safely in the Top 100 after her win at the Engie Open de Limoges, where she beat Antonia Lottner 6-4, 6-2 in the final.
Pauline Parmentier (+10, No.91 to No.81): The Frenchwoman was one of the scalps Niculescu claimed in Limoges; the third seed couldn't hold off her opponent in the semifinal, eventually falling 6-3, 5-7, 2-6.
Hsieh Su-Wei (+12, No.96 to No.84): The Taiwanese star was seeded third in Hua Hin, and cut through the field with precision, not dropping a set until she lost to Bencic in the final.
Taylor Townsend (+8, No.105 to No.97): The 21-year-old had a great week in Waco, where she was the top seed. She beat fifth seed Anna Karolina Schmiedlova in the quarterfinal, then third seed Sofia Kenin in the semifinal, following that up with a victory over unseeded Ajla Tomljanovic in the final, 6-3, 2-6, 6-2.
Viktorija Golubic (+12, No.128 to No.116): Unseeded in Hua Hin, the Swiss knocked out second seed Evgeniya Rodina in straight sets in the round of 16, 6-1, 6-1, and followed that with a run to the semifinals.
Ajla Tomljanovic (+15, No.151 to No.136): The Australian finished as runner-up to top seed Taylor Townsend in Waco, beating second seed Nicole Gibbs in the round of 16 along the way.
Carol Zhao (+71, No.221 to No.150): The unseeded Canadian caused an upset in Shenzhen, picking up the biggest title of her career as she beat fourth seed Fangzhou Liu 7-5, 6-2 in the final.
Antonia Lottner (+45, No.201 to No.156): The German defeated two seeds en route to the final in Limoges - eighth seed Jana Cepelova retired in the round of 16, and then she beat Ekaterina Alexandrova 7-6(3), 6-1 in the quarterfinal.
Olivia Rogowska (+22, No.186 to No.164): The 26-year-old Australian was runner-up at the Bendigo International, losing to Tamara Zidansek 7-5, 1-6, 0-6 in the final.