| Singles | |
|---|---|
| 2020 Open de Cagnes-sur-Mer | |
| Champion |  Sara Sorribes Tormo |
| Runner-up |  Irina Bara |
| Final score | 6–3, 6–4 |
Christina McHale was the defending champion [1] but chose to compete at the 2020 Italian Open instead.
Sara Sorribes Tormo won the title, defeating Irina Bara in the final, 6–3, 6–4.
Sara Sorribes Tormo (Champion)
Nina Stojanović (First round)
Varvara Gracheva (Semifinals)
Greet Minnen (First round)
Katarina Zavatska (Second round)
Océane Dodin (Quarterfinals, retired)
Maddison Inglis (First round) Ysaline Bonaventure (First round)| Semifinals | Final | ||||||||||||
| 1 | Sara Sorribes Tormo | 6 | 77 | ||||||||||
 Viktoriya Tomova | 1 | 65 | |||||||||||
| 1 | Sara Sorribes Tormo | 6 | 6 | ||||||||||
| Irina Bara | 3 | 4 | |||||||||||
| 3 | Varvara Gracheva | 5 | 4 | ||||||||||
| Irina Bara | 7 | 6 | |||||||||||
| First Round | Second Round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | S Sorribes Tormo | 6 | 6 | ||||||||||||||||||||||||
 W Osuigwe | 1 | 2 | 1 | S Sorribes Tormo | 6 | 6 | |||||||||||||||||||||
| Q | V Lepchenko | 6 | 6 | Q | V Lepchenko | 0 | 3 | ||||||||||||||||||||
| C McNally | 4 | 3 | 1 | S Sorribes Tormo | 6 | 6 | |||||||||||||||||||||
| SE | C Bucșa | 4 | 2 |  V Golubic | 0 | 2 | |||||||||||||||||||||
| V Golubic | 6 | 6 | V Golubic | 6 | 6 | ||||||||||||||||||||||
| WC | C Paquet | 6 | 4 | 4 | 5 | K Zavatska | 2 | 3 | |||||||||||||||||||
| 5 | K Zavatska | 4 | 6 | 6 | 1 | S Sorribes Tormo | 6 | 77 | |||||||||||||||||||
| 4 | G Minnen | 1 | 0 | V Tomova | 1 | 65 | |||||||||||||||||||||
| Q | D Gavrilova | 6 | 6 | Q | D Gavrilova | 4 | 6 | 6 | |||||||||||||||||||
| JE | C Burel | 6 | 77 | JE | C Burel | 6 | 4 | 3 | |||||||||||||||||||
| WC | H Tan | 2 | 64 | Q | D Gavrilova | 3 | 1 | ||||||||||||||||||||
| Q |  E Silva | 5 | 7 | 2 | V Tomova | 6 | 6 | ||||||||||||||||||||
| Q |  D Seguel | 7 | 5 | 6 | Q | D Seguel | 77 | 2 | 4 | ||||||||||||||||||
| V Tomova | 6 | 6 | V Tomova | 61 | 6 | 6 | |||||||||||||||||||||
| 8 | Y Bonaventure | 2 | 2 | ||||||||||||||||||||||||
| First Round | Second Round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | O Dodin | 6 | 4 | 6 | |||||||||||||||||||||||
| Q | S Janicijevic | 3 | 6 | 1 | 6 | O Dodin | 6 | 6 | |||||||||||||||||||
| A Kalinina | 2 | 3 | F Di Lorenzo | 2 | 3 | ||||||||||||||||||||||
| F Di Lorenzo | 6 | 6 | 6 | O Dodin | 3 | 0r | |||||||||||||||||||||
| WC |  M Bolkvadze | 3 | 6 | 77 | 3 | V Gracheva | 6 | 1 | |||||||||||||||||||
| LL | N Dascălu | 6 | 2 | 65 | WC | M Bolkvadze | 2 | 3 | |||||||||||||||||||
 K Nara | 3 | 2 | 3 | V Gracheva | 6 | 6 | |||||||||||||||||||||
| 3 | V Gracheva | 6 | 6 | 3 | V Gracheva | 5 | 4 | ||||||||||||||||||||
| 7 | M Inglis | 3 | 2 | I Bara | 7 | 6 | |||||||||||||||||||||
| Q | E Gorgodze | 6 | 6 | Q | E Gorgodze | 6 | 3 | 3 | |||||||||||||||||||
| I Bara | 6 | 6 | I Bara | 2 | 6 | 6 | |||||||||||||||||||||
| Q | C Monnet | 1 | 3 | I Bara | w/o | ||||||||||||||||||||||
| WC | D Parry | 60 | 6 | 2 | L Cabrera | ||||||||||||||||||||||
| L Cabrera | 77 | 3 | 6 | L Cabrera | w/o | ||||||||||||||||||||||
| Q | E Jacquemot | 6 | 2 | 6 | Q | E Jacquemot | |||||||||||||||||||||
| 2 | N Stojanović | 3 | 6 | 3 | |||||||||||||||||||||||
Gabrielle Andrews and Taylor Townsend were the defending champions having won the 2012 event, but neither player chose to defend their title.
Kurumi Nara was the defending champion, but chose to compete in Dubai instead.
Sara Errani was the defending champion, but chose to compete in Dubai instead.
Elina Svitolina was the defending champion, but chose not to participate this year.
This is the first edition of the tournament since 1994.
Johanna Larsson was the defending champion, but lost in the semifinals to Kateřina Siniaková.
Anastasia Pavlyuchenkova was the defending champion, but lost in the quarterfinals to Dominika Cibulková.
Victoria Kan is the defending champion, having won the previous edition in 2013.
Tímea Babos was the defending champion, but chose not to participate.
Zarina Diyas was the defending champion, but chose to participate in Nottingham instead.
Stefanie Vögele won the title, defeating Sara Sorribes Tormo in the final in straight sets: 6–4, 6–2. Johanna Larsson was the defending champion, but chose not to participate.
Naomi Broady and Sara Sorribes Tormo were the defending champions, but Broady chose not to participate and Sorribes Tormo chose to compete in Charleston instead.
Karolína Plíšková was the defending champion, but lost in the second round to Victoria Azarenka.
Anna Blinkova and Raluca Olaru were the defending champions, but chose not to participate this year.
Tamara Zidanšek was the defending champion, and successfully defended her title, defeating Sara Sorribes Tormo in the final, 7–5, 7–5.
Tatjana Maria was the defending champion, but chose not to participate this year.
Misaki Doi was the defending champion, but lost to Priscilla Hon in the first round.
Alena Fomina and Valentina Ivakhnenko were the defending champions, but lost in the semifinals to Georgina García Pérez and Sara Sorribes Tormo.
This was the first edition of the tournament, primarily organised due to the cancellation of many tournaments during the 2020 season, because of the ongoing COVID-19 pandemic.
Veronika Kudermetova was the defending champion from 2019, when the tournament was last held as a WTA 125K series event, but she chose to compete in Dubai instead.