| Singles | |
|---|---|
| 2023 Dutch Open | |
| Champion |  Maximilian Marterer |
| Runner-up |  Titouan Droguet |
| Score | 6–4, 6–2 |
Tallon Griekspoor was the defending champion [1] but chose not to defend his title.
Maximilian Marterer won the title after defeating Titouan Droguet 6–4, 6–2 in the final.
Facundo Díaz Acosta (quarterfinals, retired)
Felipe Meligeni Alves (first round)
Jan Choinski (second round)
Jelle Sels (first round) Maximilian Marterer (champion) Jesper de Jong (first round)
Nicholas David Ionel (second round) Titouan Droguet (final)| Semifinals | Final | ||||||||||||
| Q | Mathys Erhard | 5 | 1 | ||||||||||
| 8 | Titouan Droguet | 7 | 6 | ||||||||||
| 8 | Titouan Droguet | 4 | 2 | ||||||||||
| 5 | Maximilian Marterer | 6 | 6 | ||||||||||
| Rudolf Molleker | 4 | 65 | |||||||||||
| 5 | Maximilian Marterer | 6 | 77 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | F Díaz Acosta | 6 | 6 | ||||||||||||||||||||||||
| U Blanchet | 1 | 2 | 1 | F Díaz Acosta | 6 | 4 | 6 | ||||||||||||||||||||
 S Travaglia | 6 | 6 | S Travaglia | 3 | 6 | 4 | |||||||||||||||||||||
| LL | Luca Potenza | 2 | 3 | 1 | F Díaz Acosta | 3 | 0r | ||||||||||||||||||||
| Q |  T Colson | 66 | 63 | Q | M Erhard | 6 | 0 | ||||||||||||||||||||
| Q | Mathys Erhard | 78 | 77 | Q | M Erhard | 6 | 6 | ||||||||||||||||||||
| M Houkes | 64 | 2 | 7 | ND Ionel | 2 | 3 | |||||||||||||||||||||
| 7 | ND Ionel | 77 | 6 | Q | M Erhard | 5 | 1 | ||||||||||||||||||||
| 3 | J Choinski | 6 | 7 | 8 | T Droguet | 7 | 6 | ||||||||||||||||||||
| S Rodríguez Taverna | 4 | 5 | 3 | J Choinski | 2 | 65 | |||||||||||||||||||||
 M Landaluce | 64 | 5 | WC | A Deckers | 6 | 77 | |||||||||||||||||||||
| WC | Alec Deckers | 77 | 7 | WC | A Deckers | 3 | 6 | 3 | |||||||||||||||||||
| Q | Niels Visker | 2 | 1 | 8 | T Droguet | 6 | 4 | 6 | |||||||||||||||||||
| Q |  E Møller | 6 | 6 | Q | E Møller | 3 | 4 | ||||||||||||||||||||
| Q |  M Vrbenský | 1 | 4 | 8 | T Droguet | 6 | 6 | ||||||||||||||||||||
| 8 | T Droguet | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | J de Jong | 4 | 6 | 3 | |||||||||||||||||||||||
| WC | G den Ouden | 6 | 3 | 6 | WC | G den Ouden | 66 | 66 | |||||||||||||||||||
| G Onclin | 6 | 6 | G Onclin | 78 | 78 | ||||||||||||||||||||||
| O Roca Batalla | 2 | 2 | G Onclin | 2 | 2 | ||||||||||||||||||||||
| R Molleker | 6 | 77 | R Molleker | 6 | 6 | ||||||||||||||||||||||
| WC | Sander Jong | 4 | 63 | R Molleker | 6 | 6 | |||||||||||||||||||||
| F Delbonis | 77 | 6 | F Delbonis | 1 | 3 | ||||||||||||||||||||||
| 4 | J Sels | 62 | 2 | R Molleker | 4 | 65 | |||||||||||||||||||||
| 5 | M Marterer | 6 | 6 | 5 | M Marterer | 6 | 77 | ||||||||||||||||||||
 S Diez | 3 | 4 | 5 | M Marterer | 6 | 77 | |||||||||||||||||||||
| Alt | M Guinard | 2 | 2 | J Menšík | 3 | 63 | |||||||||||||||||||||
| J Menšík | 6 | 6 | 5 | M Marterer | 6 | 6 | |||||||||||||||||||||
| Q | J De Loore | 6 | 6 | M Geerts | 1 | 2 | |||||||||||||||||||||
| LL | Àlex Martí Pujolràs | 3 | 3 | Q | J De Loore | 62 | 77 | 4 | |||||||||||||||||||
| M Geerts | 3 | 6 | 6 | M Geerts | 77 | 64 | 6 | ||||||||||||||||||||
| 2 | F Meligeni Alves | 6 | 2 | 2 | |||||||||||||||||||||||
Tomáš Berdych was the defending champion and successfully defended his title, defeating Jack Sock in the final, 7–6(7–1), 6–2.
Daniel Muñoz de la Nava was the defending champion but chose not to defend his title.
Albert Ramos Viñolas was the defending champion, but lost in the quarterfinals to Fernando Verdasco.
Paolo Lorenzi was the defending champion, but lost in the second round to João Sousa.
Steve Darcis was the defending champion but chose not to defend his title.
Tseng Chun-hsin won the title, defeating Jack Draper in the final, 6–1, 6–7(2–7), 6–4.
Gianluigi Quinzi was the defending champion but lost in the second round to Tomislav Brkić.
Maximilian Marterer was the defending champion but lost in the quarterfinals to Stefano Travaglia.
Tallon Griekspoor was the defending champion but chose not to defend his title.
Tallon Griekspoor defeated Benjamin Bonzi in the final, 4–6, 7–5, 6–3 to win the singles tennis title at the 2023 Maharashtra Open. It was his first ATP Tour singles title.
Benjamin Bonzi was the defending champion but chose not to defend his title.
Franco Agamenone and Manuel Guinard were the defending champions but only Agamenone chose to defend his title, partnering Salvatore Caruso. Agamenone lost in the first round to Jacopo Berrettini and Andrea Pellegrino.
Juan Bautista Torres was the defending champion but chose not to defend his title.
Bernabé Zapata Miralles was the defending champion but chose not to defend his title.
Alexander Bublik defeated Arthur Fils in the final, 6–4, 6–4 to win the singles title at the 2023 European Open. It was his third ATP Tour singles title.
Hamad Medjedovic was the defending champion but chose not to defend his title.
Márton Fucsovics defeated Mariano Navone in the final, 6–4, 7–5 to win the singles tennis title at the 2024 Țiriac Open. It was his second ATP Tour title, following the 2018 Geneva Open.
Alejandro Tabilo was the defending champion but chose not to defend his title.
Hugo Gaston was the defending champion but chose not to defend his title.
Matteo Berrettini defeated Quentin Halys in the final, 6–3, 6–1 to win the singles tennis title at the 2024 Swiss Open Gstaad. He did not drop a set en route to his second title in Gstaad and ninth ATP Tour title overall. Halys was the first qualifier to reach the final since Yannick Hanfmann in 2017.