| Doubles | |
|---|---|
| 2020 L'Open 35 de Saint-Malo | |
| Champions |  Paula Kania Katarzyna Piter |
| Runners-up | Magdalena Fręch  Viktorija Golubic |
| Score | 6–2, 6–4 |
Ekaterine Gorgodze and Maryna Zanevska were the defending champions [1] but chose not to participate.
Paula Kania and Katarzyna Piter won the title, defeating Magdalena Fręch and Viktorija Golubic in the final, 6–2, 6–4.
Paula Kania / Katarzyna Piter (champions)
Ulrikke Eikeri / 
Mayar Sherif (quarterfinals, withdrew)
Irina Bara / 
Eva Guerrero Álvarez (quarterfinals)
Amandine Hesse / Harmony Tan (quarterfinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | P Kania K Piter | 6 | 7 | ||||||||||||||||||||||||
| C Burel C Paquet | 77 | 6 | C Burel C Paquet | 2 | 5 | ||||||||||||||||||||||
 D Marcinkēviča  D Seguel | 61 | 4 | 1 | P Kania K Piter | 6 | 7 | |||||||||||||||||||||
| 3 | I Bara E Guerrero Álvarez | 6 | 5 | [10] |  E Kostova  V Lepchenko | 1 | 5 | ||||||||||||||||||||
 Y Hatouka A Kubareva | 3 | 7 | [8] | 3 | I Bara E Guerrero Álvarez | 3 | 5 | ||||||||||||||||||||
| E Kostova V Lepchenko | 6 | 6 | E Kostova V Lepchenko | 6 | 7 | ||||||||||||||||||||||
E Jacquemot  E Yashina | 0 | 3 | 1 | P Kania K Piter | 6 | 6 | |||||||||||||||||||||
| M Fręch V Golubic | 6 | 6 | M Fręch V Golubic | 2 | 4 | ||||||||||||||||||||||
F Brugnone  M Kostiuk | 2 | 2 | M Fręch V Golubic | 77 | 65 | [10] | |||||||||||||||||||||
| S Cakarevic M Yerolymos | 2 | 6 | [4] | 4 | A Hesse H Tan | 62 | 77 | [4] | |||||||||||||||||||
| 4 | A Hesse H Tan | 6 | 3 | [10] | M Fręch V Golubic | 3 | 6 | [10] | |||||||||||||||||||
| E Mazzoni J Mazzoni | 0 | 1 | C Bucșa  N Kostić | 6 | 4 | [8] | |||||||||||||||||||||
| C Bucșa N Kostić | 6 | 6 | C Bucșa N Kostić | w/o | |||||||||||||||||||||||
| A Albié M Partaud | 0 | 2 | 2 | U Eikeri M Sherif | |||||||||||||||||||||||
| 2 | U Eikeri M Sherif | 6 | 6 | ||||||||||||||||||||||||
Iveta Gerlová and Lucie Kriegsmannová were the defending champions, but both players chose not to participate.
Diana Enache and Daniëlle Harmsen were the defending champions, but lost in the quarterfinals to Paula Kania and Irina Khromacheva, 4–6, 5–7.
Monica Niculescu was the defending champion, but retired in the quarterfinals against Carla Suárez Navarro.
Klára Zakopalová won the title, defeating Garbiñe Muguruza in the final, 4–6, 7–5, 6–0.
Simona Halep was the defending champion, but she chose not to participate this year.
Eugenie Bouchard won her first career title, defeating Karolína Plíšková in the final, 6–2, 4–6, 6–3.
Eleni Daniilidou and Jasmin Wöhr were the last champions of the event in 2010, but decided not to participate.
Misaki Doi and Elina Svitolina won the title, defeating Oksana Kalashnikova and Paula Kania in the final, 6–4, 6–0.
Lucie Hradecká and Mirjana Lučić-Baroni were the defending champions, but lost in the quarterfinals to Barbora Krejčíková and An-Sophie Mestach.
Karin Knapp was the defending champion but chose not to enter the tournament this year.
Nao Hibino won the title, defeating Donna Vekić in the final, 6–2, 6–2.
Aleksandra Krunić and Kateřina Siniaková were the defending champions, but chose not to participate together. Krunić played alongside Petra Martić, but lost in the quarterfinals to Anna-Lena Friedsam and Katarzyna Piter.
Siniaková teamed up with Vera Dushevina, but lost in the final to Margarita Gasparyan and Alexandra Panova, 1–6, 6–3, [3–10].
Lara Arruabarrena and María Teresa Torró Flor were the defending champions, but chose not to compete together. Arruabarrena played alongside Paula Cristina Gonçalves, but lost in the quarterfinals to María Irigoyen and Paula Kania. Torró Flor was scheduled to team up with Shahar Pe'er, but withdrew before their first round match.
Anabel Medina Garrigues and Arantxa Parra Santonja won the title, defeating Kiki Bertens and Johanna Larsson in the final, 6–0, 6–4.
Oksana Kalashnikova and Demi Schuurs were the defending champions, but Schuurs chose to compete in Gstaad instead. Kalashnikova played alongside Yaroslava Shvedova, but lost in the quarterfinals to Lenka Kunčíková and Karolína Stuchlá.
María José Martínez Sánchez and Marina Melnikova were the defending champions, but Martínez Sánchez chose not to participate. Melnikova partnered Paula Kania, but they lost in the quarterfinals to Elitsa Kostova and Cornelia Lister.
Maja Chwalińska and Daria Kuczer were the defending champions, but chose to participate with different partners. Chwalińska played alongside Ulrikke Eikeri, while Kuczer partnered Stefania Rogozińska Dzik. The two teams played in the first round, with Chwalińska and Eikeri winning.
This was the first edition of the tournament.
Anna Blinkova and Xenia Knoll were the defending champions but chose not to participate.
The 2020 Bellatorum Resources Pro Classic was a professional tennis tournament played on outdoor hard courts. It was the fourth edition of the tournament which was part of the 2020 ITF Women's World Tennis Tour. It took place in Tyler, Texas, United States between 26 October and 1 November 2020.
Beatrice Gumulya and Jessy Rompies were the defending champions but chose not to participate.
Asia Muhammad and Taylor Townsend were the defending champions but both players chose not to participate.
Barbora Krejčíková and Kateřina Siniaková defeated Gabriela Dabrowski and Demi Schuurs in the final, 6–4, 6–3 to win the women's doubles tennis title at the 2021 Madrid Open. It marked the duo's seventh career WTA Tour doubles title together, as well as Krejčíková's eighth individual doubles title and Siniaková's 10th.
Paula Kania-Choduń and Katarzyna Piter were the defending champions but chose not to participate.
Bárbara Gatica and Rebeca Pereira were the defending champions but Gatica had been provisionally suspended for doping since June 2022, whilst Pereira chose not to participate.