| Singles | |
|---|---|
| 2023 Maia Challenger | |
| Champion |  Nuno Borges |
| Runner-up |  Benoît Paire |
| Score | 6–1, 6–4 |
Luca Van Assche was the defending champion [1] but chose not to defend his title.
Nuno Borges won the title after defeating Benoît Paire 6–1, 6–4 in the final.
Nuno Borges (champion)
Albert Ramos Viñolas (quarterfinals) Benoît Paire (final)
Fabio Fognini (second round, withdrew)
Elias Ymer (quarterfinals) Andrea Vavassori (quarterfinals) Calvin Hemery (first round) Riccardo Bonadio (first round)| Semifinals | Final | ||||||||||||
| 1 | Nuno Borges | 77 | 6 | ||||||||||
| Matteo Martineau | 65 | 4 | |||||||||||
| 1 | Nuno Borges | 6 | 6 | ||||||||||
| 3 | Benoît Paire | 1 | 4 | ||||||||||
| 3 | Benoît Paire | 6 | 7 | ||||||||||
| Maxime Janvier | 2 | 5 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | N Borges | 6 | 77 | ||||||||||||||||||||||||
 M Safwat | 4 | 65 | 1 | N Borges | 6 | 6 | |||||||||||||||||||||
 M Geerts | 63 | 6 | 1 | E Dalla Valle | 2 | 0 | |||||||||||||||||||||
| Enrico Dalla Valle | 77 | 4 | 6 | 1 | N Borges | 2 | 78 | 6 | |||||||||||||||||||
 S Fanselow | 6 | 3 | 4 | 6 | A Vavassori | 6 | 66 | 3 | |||||||||||||||||||
| Q | K Friberg | 3 | 6 | 6 | Q | K Friberg | 2 | 3 | |||||||||||||||||||
| Q |  A Vatutin | 1 | 66 | 6 | A Vavassori | 6 | 6 | ||||||||||||||||||||
| 6 | A Vavassori | 6 | 78 | 1 | N Borges | 77 | 6 | ||||||||||||||||||||
| 4 | F Fognini | 67 | 6 | 7 | M Martineau | 65 | 4 | ||||||||||||||||||||
| Q | Tom Gentzsch | 79 | 3 | 5 | 4 | F Fognini | |||||||||||||||||||||
| M Martineau | 6 | 6 | M Martineau | w/o | |||||||||||||||||||||||
| LL | Miguel Damas | 1 | 2 | M Martineau | 6 | 6 | |||||||||||||||||||||
| A Giannessi | 4 | 77 | 2 | Q |  A Matusevich | 2 | 2 | ||||||||||||||||||||
| H Rocha | 6 | 65 | 6 | H Rocha | 62 | 4 | |||||||||||||||||||||
| Q | A Matusevich | 4 | 6 | 6 | Q | A Matusevich | 77 | 6 | |||||||||||||||||||
| 7 | C Hemery | 6 | 3 | 3 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | E Ymer | 63 | 6 | 6 | |||||||||||||||||||||||
 M Trungelliti | 77 | 2 | 4 | 5 | E Ymer | 6 | 67 | 6 | |||||||||||||||||||
 D Yevseyev | 6 | 77 | D Yevseyev | 4 | 79 | 3 | |||||||||||||||||||||
| LL |  S Sakellaridis | 2 | 65 | 5 | E Ymer | 6 | 3 | 3 | |||||||||||||||||||
| Q | Pedro Araújo | 2 | 3 | 3 | B Paire | 3 | 6 | 6 | |||||||||||||||||||
| WC | J Faria | 6 | 6 | WC | J Faria | 79 | 3 | 3 | |||||||||||||||||||
| WC | D Vale | 2 | 4 | 3 | B Paire | 67 | 6 | 6 | |||||||||||||||||||
| 3 | B Paire | 6 | 6 | 3 | B Paire | 6 | 7 | ||||||||||||||||||||
| 8 | R Bonadio | 3 | 3 | M Janvier | 2 | 5 | |||||||||||||||||||||
| WC | Francisco Rocha | 6 | 6 | WC | F Rocha | 4 | 2 | ||||||||||||||||||||
| Q | Andrea Guerrieri | 3 | 2 | M Janvier | 6 | 6 | |||||||||||||||||||||
| M Janvier | 6 | 6 | M Janvier | 6 | 6 | ||||||||||||||||||||||
| J Sousa | 6 | 3 | 6 | 2 | A Ramos Viñolas | 2 | 4 | ||||||||||||||||||||
 FC Jianu | 3 | 6 | 1 | J Sousa | 4 | 63 | |||||||||||||||||||||
 J Kovalík | 4 | 3 | 2 | A Ramos Viñolas | 6 | 77 | |||||||||||||||||||||
| 2 | A Ramos Viñolas | 6 | 6 | ||||||||||||||||||||||||
Éric Prodon chose to not defend his last year's title.
In the singles event of the 2012 Heineken Open men's tennis tournament, David Ferrer was the defending champion and confirmed his title beating unseeded player Olivier Rochus in the final, 6–3, 6–4, for his 3rd win in Auckland.
Tomáš Berdych was the defending champion but withdrew because of a wrist injury.
Richard Gasquet won the title, defeating Benoît Paire in an all-French final, 6–2, 6–3.
Simone Bolelli was the defending champion, but decided to play in the 2015 ABN AMRO World Tennis Tournament instead.
Kenny de Schepper was the defending champion, but lost in the quarterfinals.
The previous year's runner-up Norbert Gombos won the title, defeating Benoît Paire in the final, 6–1, 7–6(7–4).
Pierre-Hugues Herbert was the defending champion, but did not participate.
Kei Nishikori was the defending champion, but lost to Benoît Paire in the semifinals.
Richard Gasquet was the defending champion, but chose not to participate this year.
Dominic Thiem was the defending champion and successfully defended his title, defeating Alexander Zverev in the final, 6–4, 3–6, 6–0.
Rafael Nadal was the defending champion, but chose not to participate this year.
Tomáš Berdych was the defending champion and successfully defended his title, defeating Richard Gasquet in the final, 7−6(7−5), 6−7(2−7), 6−3.
Lucas Pouille was the defending champion, but lost in the second round to Marius Copil.
Gastão Elias was the defending champion and successfully defended his title, defeating Nino Serdarušić 6–3, 6–4 in the final.
Jesper de Jong and Tim van Rijthoven were the defending champions but chose not to defend their title.
Thiago Monteiro was the defending champion but chose not to defend his title.
Brandon Nakashima was the defending champion but chose not to defend his title.
Tseng Chun-hsin was the defending champion but chose not to defend his title.
Nuno Borges was the defending champion but chose not to defend his title.
Grégoire Barrère was the defending champion but chose not to defend his title.
Luca Van Assche was the defending champion but chose not to defend his title.
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