| Singles | |
|---|---|
| 2020 Open du Pays d'Aix | |
| Champion |  Oscar Otte |
| Runner-up |  Thiago Seyboth Wild |
| Final score | 6–2, 6–7(4–7), 6–4 |
Pablo Cuevas was the defending champion [1] but lost in the quarterfinals to Daniel Altmaier.
Oscar Otte won the title after defeating Thiago Seyboth Wild 6–2, 6–7(4–7), 6–4 in the final.
Gilles Simon (first round)
Pablo Cuevas (quarterfinals)
Gianluca Mager (first round)
Hugo Dellien (first round)
Roberto Carballés Baena (second round)
Alexei Popyrin (first round)
Federico Coria (first round) Marco Cecchinato (second round)| Semifinals | Final | ||||||||||||
 Alejandro Tabilo | 64 | 3 | |||||||||||
| Thiago Seyboth Wild | 77 | 6 | |||||||||||
| Thiago Seyboth Wild | 2 | 77 | 4 | ||||||||||
| SE | Oscar Otte | 6 | 64 | 6 | |||||||||
| SE | Oscar Otte | 5 | |||||||||||
| SE | Daniel Altmaier | 4r | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1/WC | G Simon | 5 | 2 | ||||||||||||||||||||||||
| F Gaio | 7 | 6 | F Gaio | 6 | 6 | ||||||||||||||||||||||
| Q |  E Ymer | 6 | 2 | 6 | Q | E Ymer | 4 | 4 | |||||||||||||||||||
| LL |  R Bemelmans | 4 | 6 | 4 | F Gaio | 6 | 2 | 4 | |||||||||||||||||||
| A Tabilo | 7 | 7 | A Tabilo | 4 | 6 | 6 | |||||||||||||||||||||
| R Marcora | 5 | 5 | A Tabilo | 6 | 77 | ||||||||||||||||||||||
 M Safwat | 0 | 1 | 8 | M Cecchinato | 3 | 65 | |||||||||||||||||||||
| 8 | M Cecchinato | 6 | 6 | A Tabilo | 64 | 3 | |||||||||||||||||||||
| 3 | G Mager | 3 | 5 | T Seyboth Wild | 77 | 6 | |||||||||||||||||||||
| T Seyboth Wild | 6 | 7 | T Seyboth Wild | 6 | 7 | ||||||||||||||||||||||
| Q | H Gaston | 3 | 78 | 3 | Q |  R Cid Subervi | 1 | 5 | |||||||||||||||||||
| Q | R Cid Subervi | 6 | 66 | 6 | T Seyboth Wild | 3 | 6 | 6 | |||||||||||||||||||
 B Klahn | 0 | 2 | A Hoang | 6 | 2 | 1 | |||||||||||||||||||||
| A Hoang | 6 | 6 | A Hoang | 6 | 6 | ||||||||||||||||||||||
| WC | Q Halys | 7 | 6 | WC | Q Halys | 3 | 3 | ||||||||||||||||||||
| 6 | A Popyrin | 5 | 3 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | R Carballés Baena | 6 | 6 | ||||||||||||||||||||||||
| PR | D Brown | 4 | 4 | 5 | R Carballés Baena | 7 | 3 | 5 | |||||||||||||||||||
 D Petrović | 6 | 63 | 6 | D Petrović | 5 | 6 | 7 | ||||||||||||||||||||
 JP Varillas | 1 | 77 | 2 | D Petrović | 3 | 2 | |||||||||||||||||||||
| LL | A Cazaux | 3 | 6 | 3 | SE | O Otte | 6 | 6 | |||||||||||||||||||
| SE | O Otte | 6 | 3 | 6 | SE | O Otte | 77 | 6 | |||||||||||||||||||
| L Mayer | 6 | 6 | L Mayer | 65 | 3 | ||||||||||||||||||||||
| 4 | H Dellien | 3 | 2 | SE | O Otte | 5 | |||||||||||||||||||||
| 7 | F Coria | 1 | 6 | 3 | SE | D Altmaier | 4r | ||||||||||||||||||||
| SE | D Altmaier | 6 | 4 | 6 | SE | D Altmaier | 7 | 6 | |||||||||||||||||||
 P Sousa | 3 | 6 | 6 | P Sousa | 5 | 3 | |||||||||||||||||||||
 J Jung | 6 | 2 | 4 | SE | D Altmaier | 7 | 6 | ||||||||||||||||||||
 E Gómez | 79 | 3 | 4 | 2 | P Cuevas | 5 | 3 | ||||||||||||||||||||
| WC | H Mayot | 67 | 6 | 6 | WC | H Mayot | 3 | 4 | |||||||||||||||||||
| Q | R Olivo | 2 | 3 | 2 | P Cuevas | 6 | 6 | ||||||||||||||||||||
| 2 | P Cuevas | 6 | 6 | ||||||||||||||||||||||||
Andy Murray was the defending champion, but he was eliminated by Juan Mónaco in the second round.
4th seed David Ferrer defeated Lucky loser Marcel Granollers 7–5, 6–3 in the final match.
Pablo Cuevas and Marcel Granollers were the defending champions, but Granollers chose to compete in Rotterdam.
Cuevas played with Eduardo Schwank, but lost to Fabio Fognini and David Marrero in the quarterfinals.
Marcelo Melo and Bruno Soares won the title, defeating Pablo Andújar and Daniel Gimeno-Traver 7–6(4), 6–3 in the final.
João Sousa was the defending champion, but lost to Benjamin Becker in the first round.
Kei Nishikori won the title, defeating Julien Benneteau in the final, 7–6(7–4), 6–4.
Tommy Robredo was the defending champion, but lost to Pablo Cuevas in the final, 3–6, 4–6.
Federico Delbonis was the defending champion, but lost to Facundo Bagnis in the first round.
Pablo Cuevas won the title, defeating Luca Vanni in the final, 6–4, 3–6, 7–6(7–4).
This was the first edition of the tournament.
Vasek Pospisil and Jack Sock were the defending champions, but lost in the third round to Jamie Murray and John Peers. Jean-Julien Rojer and Horia Tecău won the title by defeating Murray and Peers in the final by a score of 7–6(7–5), 6–4, 6–4.
Pablo Cuevas was the defending champion and successfully defended his title, defeating Pablo Carreño Busta in the final, 7–6(7–4), 6–3.
Denis Istomin was the defending champion, but lost in the first round to Damir Džumhur.
Rafael Nadal was the defending champion, but chose not to participate this year.
Dominic Thiem was the defending champion, but chose to compete in Rotterdam instead.
Pablo Cuevas was the two-time defending champion and successfully defended his title, defeating Albert Ramos Viñolas in the final, 6–7(3–7), 6–4, 6–4.
Łukasz Kubot and Marcelo Melo were the two time defending champions, but lost in the quarterfinals to Rohan Bopanna and Pablo Cuevas.
Pablo Cuevas was the three-time defending champion, but lost in the semifinals to Fabio Fognini.
Roberto Bautista Agut was the defending champion, but withdrew before the tournament began.
João Sousa was the defending champion, but lost in the second round to David Goffin.
Fabio Fognini was the defending champion, but he chose to compete in Umag instead.
Nikoloz Basilashvili was the defending champion, but lost in the second round to Stefanos Tsitsipas.
Fabio Fognini was the champion in 2014, when the event was last held, but chose to compete in Dubai instead.
Alexander Zverev was the defending champion from when the event was held in 2019, but chose not to defend his title.