| Women's singles | |
|---|---|
| 2017 Dunlop World Challenge | |
| Champion |  Mihaela Buzărnescu |
| Runner-up |  Tamara Zidanšek |
| Score | 6–0, 6–1 |
Aryna Sabalenka was the defending champion, but chose to participate in Taipei instead.
Mihaela Buzărnescu won the title, defeating Tamara Zidanšek in the final, 6–0, 6–1.
Mihaela Buzărnescu (champion)
Dalma Gálfi (quarterfinals) Tamara Zidanšek (final)
Georgia Brescia (first round; retired)
Lu Jiajing (semifinals)
Miharu Imanishi (quarterfinals) Mayo Hibi (first round) Junri Namigata (semifinals)| Semifinals | Final | ||||||||||||
| 1 | Mihaela Buzărnescu | 6 | 7 | ||||||||||
| 5 | Lu Jiajing | 1 | 5 | ||||||||||
| 1 | Mihaela Buzărnescu | 6 | 6 | ||||||||||
| 3 | Tamara Zidanšek | 0 | 1 | ||||||||||
| 3 | Tamara Zidanšek | 6 | 6 | ||||||||||
| 8 | Junri Namigata | 1 | 1 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | M Buzărnescu | 7 | 6 | ||||||||||||||||||||||||
 E Bektas | 5 | 2 | 1 | M Buzărnescu | 6 | 6 | |||||||||||||||||||||
| Q | K Okamura | 62 | 5 | R Sawayanagi | 2 | 1 | |||||||||||||||||||||
| R Sawayanagi | 77 | 7 | 1 | M Buzărnescu | 6 | 6 | |||||||||||||||||||||
| H Kaji | 3 | 6 | 77 | H Kaji | 3 | 3 | |||||||||||||||||||||
 A Lim | 6 | 3 | 62 | H Kaji | 77 | 6 | |||||||||||||||||||||
| Q | R Fujiwara | 6 | 6 | Q | R Fujiwara | 61 | 2 | ||||||||||||||||||||
| 7 | M Hibi | 0 | 2 | 1 | M Buzărnescu | 6 | 7 | ||||||||||||||||||||
| 4 | G Brescia | 1 | 0r | 5 | Jia Lu | 1 | 5 | ||||||||||||||||||||
 K Dunne | 6 | 0 | K Dunne | 1 | 3 | ||||||||||||||||||||||
| L Robson | 6 | 6 | L Robson | 6 | 6 | ||||||||||||||||||||||
| WC | Y Tanaka | 3 | 1 | L Robson | 1 | 77 | 4 | ||||||||||||||||||||
| A Shimizu | 6 | 6 | 5 | Jia Lu | 6 | 63 | 6 | ||||||||||||||||||||
 Vara Wongteanchai | 2 | 3 | A Shimizu | 4 | 4 | ||||||||||||||||||||||
| Q | A Yoshitomi | 1 | 5 | 5 | Jia Lu | 6 | 6 | ||||||||||||||||||||
| 5 | Jia Lu | 6 | 7 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | M Imanishi | 6 | 6 | ||||||||||||||||||||||||
| S Aoyama | 1 | 2 | 6 | M Imanishi | 6 | 6 | |||||||||||||||||||||
 A Raina | 2 | 6 | 6 | A Raina | 3 | 2 | |||||||||||||||||||||
| Q | M Nishimoto | 6 | 1 | 1 | 6 | M Imanishi | 3 | 2 | |||||||||||||||||||
| P Plipuech | 6 | 1 | 1 | 3 | T Zidanšek | 6 | 6 | ||||||||||||||||||||
| E Sema | 3 | 6 | 6 | E Sema | 5 | 3 | |||||||||||||||||||||
| WC | Y Hosoki | 3 | 0 | 3 | T Zidanšek | 7 | 6 | ||||||||||||||||||||
| 3 | T Zidanšek | 6 | 6 | 3 | T Zidanšek | 6 | 6 | ||||||||||||||||||||
| 8 | J Namigata | 6 | 6 | 8 | J Namigata | 1 | 1 | ||||||||||||||||||||
| M Minokoshi | 0 | 0 | 8 | J Namigata | 6 | 6 | |||||||||||||||||||||
| Á Bukta | 1 | 5 | WC | M Kobori | 4 | 3 | |||||||||||||||||||||
| WC | M Kobori | 6 | 7 | 8 | J Namigata | 4 | 77 | 6 | |||||||||||||||||||
 K Lykina | 6 | 6 | 2 | D Gálfi | 6 | 61 | 3 | ||||||||||||||||||||
 D Radanović | 3 | 2 | K Lykina | 5 | 3 | ||||||||||||||||||||||
| WC |  U Radwańska | 4 | 77 | 2 | 2 | D Gálfi | 7 | 6 | |||||||||||||||||||
| 2 | D Gálfi | 6 | 61 | 6 | |||||||||||||||||||||||
Caroline Wozniacki was the defending champion, but lost to Angelique Kerber 6–4, 6–4 in the final.
Agnieszka Radwańska won the title, defeating Anastasia Pavlyuchenkova in the final, 6–4, 6–1.
Han Xinyun was the defending champion, but lost in the quarterfinals to Jamie Loeb.
Tamara Zidanšek was the defending champion, but lost in the second round to Alexandra Panova.
Rebecca Šramková was the defending champion, but chose not to participate.
Maryna Zanevska was the defending champion, but chose not to participate.
Océane Dodin was the defending champion, but chose not to participate.
Zhang Shuai was the two-time defending champion and successfully defended her title, defeating Mihaela Buzărnescu in the final, 6–4, 6–0.
Mona Barthel was the defending champion, but lost in the first round to Antonia Lottner.
Victoria Azarenka and Ágnes Szávay were the defending champions, but did not compete in the Juniors that year.
Irina-Camelia Begu and Raluca Olaru were the defending champions, but chose not to participate together. Olaru played alongside Mihaela Buzărnescu, but lost in the semifinals to Danka Kovinić and Maryna Zanevska. Begu teamed up with Andreea Mitu and successfully defended the title, defeating Kovinić and Zanevska in the final, 6–3, 6–4.
Barbora Krejčíková and Rajeev Ram defeated Astra Sharma and John-Patrick Smith in the final, 7–6(7–3), 6–1 to win the mixed doubles tennis title at the 2019 Australian Open.
Petra Kvitová was the defending champion, but chose not to participate this year.
Mihaela Buzărnescu and Raluca Olaru were the defending champions, but Buzărnescu chose not to participate this year. Olaru played alongside Darija Jurak, but lost in the semifinals to Daria Gavrilova and Ellen Perez.
Mihaela Buzărnescu was the defending champion, but lost to Daria Kasatkina in the first round.
Defending champion Ashleigh Barty won the women's singles tennis title at the 2021 Miami Open after Bianca Andreescu retired from the final with the scoreline at 6–3, 4–0. Barty saved a match point en route to the title, in the second round against Kristína Kučová.
Elixane Lechemia and Ingrid Neel defeated Mihaela Buzărnescu and Anna-Lena Friedsam in the final, 6–3, 6–4, to win the doubles tennis title at the 2021 Copa Colsanitas. It was the duo's first individual career Women's Tennis Association (WTA) doubles titles.
Barbora Krejčíková defeated Anastasia Pavlyuchenkova in the final, 6–1, 2–6, 6–4 to win the women's singles tennis title at the 2021 French Open. It was her first major singles title. Krejčíková saved a match point en route to the title, in the semifinals against Maria Sakkari, making her the first player since Justine Henin in 2005 and the third woman in the Open Era to win the French Open after saving a match point. Krejčíková and Pavlyuchenkova were the combined lowest ranked major finalists since the introduction of computer rankings began in 1975.
Andrea Sestini Hlaváčková and Lucie Hradecká were the defending champions having won the previous edition in 2013, but Hradecká chose to compete at the 2021 Prague Open instead, whilst Sestini Hlaváčková retired from professional tennis in 2019.
Fiona Ferro was the defending champion from 2019, when the event was last held, but lost to Clara Burel in the quarterfinals.