| Women's singles | |
|---|---|
| 2017 Winnipeg National Bank Challenger | |
| Champion |  Caroline Dolehide |
| Runner-up |  Mayo Hibi |
| Final score | 6–3, 6–4 |
Francesca Di Lorenzo was the defending champion, but lost in the second round to Jessika Ponchet.
Caroline Dolehide won the title, defeating Mayo Hibi 6–3, 6–4 in the final.
Nicole Gibbs (semifinals) Danielle Collins (first round) Danielle Lao (second round) Caroline Dolehide (champion) Mayo Hibi (final) Hiroko Kuwata (quarterfinals)
Michelle Larcher de Brito (first round) Francesca Di Lorenzo (second round)| Semifinals | Final | ||||||||||||
| 1 | Nicole Gibbs | 1 | 6 | 3 | |||||||||
| 5 | Mayo Hibi | 6 | 2 | 6 | |||||||||
| 5 | Mayo Hibi | 3 | 4 | ||||||||||
| 4 | Caroline Dolehide | 6 | 6 | ||||||||||
| 4 | Caroline Dolehide | 6 | 6 | ||||||||||
 Xu Shilin | 2 | 3 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | N Gibbs | 6 | 6 | ||||||||||||||||||||||||
| WC |  C Robillard-Millette | 1 | 2 | 1 | N Gibbs | 7 | 7 | ||||||||||||||||||||
| Q | HA Altick | 2 | 2 | R Yurovsky | 5 | 5 | |||||||||||||||||||||
| R Yurovsky | 6 | 6 | 1 | N Gibbs | 5 | 6 | 6 | ||||||||||||||||||||
| WC | I Boulais | 3 | 78 | 3 |  J Ponchet | 7 | 1 | 3 | |||||||||||||||||||
| J Ponchet | 6 | 66 | 6 | J Ponchet | 6 | 6 | |||||||||||||||||||||
| Q | J Failla | 6 | 65 | 1 | 8 | F Di Lorenzo | 4 | 3 | |||||||||||||||||||
| 8 | F Di Lorenzo | 4 | 77 | 6 | 1 | N Gibbs | 1 | 6 | 3 | ||||||||||||||||||
| 3 | D Lao | 6 | 6 | 5 | M Hibi | 6 | 2 | 6 | |||||||||||||||||||
 V Savinykh | 4 | 2 | 3 | D Lao | 78 | 65 | 63 | ||||||||||||||||||||
| Q |  M Zacarías | 2 | 6 | 4 | Q | A Mueller | 66 | 77 | 77 | ||||||||||||||||||
| Q | A Mueller | 6 | 4 | 6 | Q | A Mueller | 3 | 3 | |||||||||||||||||||
| Q | N Kukharchuk | 64 | 2 | 5 | M Hibi | 6 | 6 | ||||||||||||||||||||
 E Perez | 77 | 6 | E Perez | 5 | 2 | ||||||||||||||||||||||
 C Ferrando | 1 | 1 | 5 | M Hibi | 7 | 6 | |||||||||||||||||||||
| 5 | M Hibi | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | M Larcher de Brito | 3 | 4 | ||||||||||||||||||||||||
| M Imanishi | 6 | 6 | M Imanishi | 6 | 6 | ||||||||||||||||||||||
| WC | C Leduc | 1 | 1 | M Minokoshi | 2 | 1 | |||||||||||||||||||||
| M Minokoshi | 6 | 6 | M Imanishi | 78 | 4 | 64 | |||||||||||||||||||||
| PR | K Birrell | 6 | 6 | 4 | C Dolehide | 66 | 6 | 77 | |||||||||||||||||||
| WC | P Januskova | 4 | 2 | PR | K Birrell | 6 | 2 | 4 | |||||||||||||||||||
| Q | S Daavettila | 3 | 2 | 4 | C Dolehide | 4 | 6 | 6 | |||||||||||||||||||
| 4 | C Dolehide | 6 | 6 | 4 | C Dolehide | 6 | 6 | ||||||||||||||||||||
| 6 | H Kuwata | 6 | 6 | S Xu | 2 | 3 | |||||||||||||||||||||
 S-R Sekulic | 3 | 0 | 6 | H Kuwata | 3 | 6 | 6 | ||||||||||||||||||||
| Q | LA Fernandez | 2 | 1 | A Wozniak | 6 | 3 | 4 | ||||||||||||||||||||
| A Wozniak | 6 | 6 | 6 | H Kuwata | 2 | 6 | 3 | ||||||||||||||||||||
| C Zhao | 6 | 6 | S Xu | 6 | 4 | 6 | |||||||||||||||||||||
| Q | S Talcott | 2 | 0 | C Zhao | 6 | 1 | 64 | ||||||||||||||||||||
| S Xu | 6 | 77 | S Xu | 4 | 6 | 77 | |||||||||||||||||||||
| 2 | D Collins | 0 | 65 | ||||||||||||||||||||||||
The singles final of the Stanford Classic was held on August 6, 2017. Johanna Konta was the defending champion, but chose not to participate this year. Madison Keys won the title, defeating Coco Vandeweghe in the final, 7–6(7–4), 6–4.
Francesca Di Lorenzo and Ronit Yurovsky were the defending champions, but decided not to compete together. Di Lorenzo partnered with Ingrid Neel, but lost in the semifinals to Kimberly Birrell and Caroline Dolehide. Yurovsky partnered with Alexa Guarachi, but lost in the first round to Di Lorenzo and Neel.
This was the first edition of the tournament.
Daria Kasatkina was the defending champion, but lost in the quarterfinals to Julia Görges.
This was the first edition of the tournament.
Varvara Lepchenko was the defending champion, having won the previous event in 2008, but decided not to participate this year.
Ekaterina Makarova was the defending champion, but lost in the first round to Ana Bogdan.
Kiki Bertens was the defending champion, but lost in the third round to Maria Sakkari.
Anna Karolína Schmiedlová was the defending champion, but lost in the second round to Beatriz Haddad Maia.
Sofia Kenin was the defending champion, but chose not to participate.
Belinda Bencic was the defending champion, but chose not to participate.
Peng Shuai was the defending champion, but chose to compete in an ITF event in Tokyo instead.
Caty McNally was the defending champion, but lost in the quarterfinals to Anhelina Kalinina.
Wang Yafan was the defending champion, but lost to compatriot Wang Xiyu in the first round.
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Usue Maitane Arconada and Caroline Dolehide were the defending champions but chose to participate with different partners. Arconada partnered Marta Kostyuk but lost in the first round to Francesca Di Lorenzo and Jamie Loeb. Dolehide partnered Caty McNally, but lost in the semifinals to Magdalena Fręch and Katarzyna Kawa.
The Phillip Island Trophy was a new addition to the WTA Tour in 2021.
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Madison Brengle was the defending champion but chose to compete at the 2021 Chicago Fall Tennis Classic instead.