In the Toray Pan Pacific Open final in Tokyo, Caroline Wozniacki will play Anastasia Pavlyuchenkova for the sixth time. Wozniacki leads the head-to-head 4-1, including a 6-1, 6-2 victory in the third round of Tokyo in 2010. Pavlyuchenkova's sole win over the Dane was their most recent encounter, 6-4, 6-4 in the third round of Cincinnati in 2012.
Wozniacki will be playing her seventh WTA final of 2017 - more than any other player this season. However, she has lost each of her previous six: to Karolina Pliskova in Doha, Elina Svitolina in Dubai, Johanna Konta in Miami, Pliskova again in Eastbourne, Katerina Siniakova in Bastad and Svitolina once more in Cincinnati.
Pavlyuchenkova will be playing her 16th career final, but just her fifth at Premier level. Two of her 10 career titles so far have come at Premier level: Paris and Moscow in 2014. Pavlyuchenkova has won both of her previous finals this season, in Monterrey and Rabat.
Defending champion Wozniacki is aiming for her 26th career title and first since Hong Kong in October last year. She has two Tokyo titles under her belt already, having beaten Elena Dementieva in the 2010 final and Kristina Mladenovic in 2016; a third triumph here would make it the Dane's second most successful tournament following New Haven, where she has lifted the trophy four times.
Wozniacki, who saved two match points against Dominika Cibulkova in the quarterfinals, would be the first woman to win a title after facing match points since Garbiñe Muguruza, who saved three of them against Madison Keys in the third round of Cincinnati in August before going on to lift the trophy.
In the KEB Hana Bank-Incheon Airport Korea Open in Seoul, top seed Jelena Ostapenko will play Beatriz Haddad Maia for the first time since the pair's junior days. Ostapenko won both their junior meetings in 2012, both on clay and in three sets.
Ostapenko has a 1-3 career record in finals so far, with her only win coming over Simona Halep in the Roland Garros championship match this year. Tomorrow marks her first advancement to a final since that shock triumph.
Prior to this week, Haddad Maia had never progressed beyond the quarterfinals of a WTA tournament. She is the first Brazilian to play a WTA final since Teliana Pereira's victory in Florianopolis in August 2015.
Orders of Play
Toray Pan Pacific Open, Tokyo
Center Court (starts at 12pm)
Caroline WOZNIACKI (DEN)  vs Anastasia PAVLYUCHENKOVA (RUS)
KEB Hana Bank-Incheon Airport Korea Open, Seoul
Centre Court (starts at 2pm)
Jelena OSTAPENKO (LAT)  vs Beatriz HADDAD MAIA (BRA)
Kiki BERTENS (NED) / Johanna LARSSON (SWE)  vs Luksika KUMKHUM (THA) / Peangtarn PLIPUECH (THA)
— Storm Sanders (@stormsanders94) September 23, 2017
— caseydellacqua (@caseydellacqua) September 22, 2017
Relive Luksika Kumkhum's stunning hotshot against Jelena Ostapenko in the Seoul semifinals.