| Singles | |
|---|---|
| 2024 Kiskút Open | |
| Champion |  Tseng Chun-hsin |
| Runner-up |  Titouan Droguet |
| Score | 4–1 ret. |
Hamad Medjedovic was the defending champion [1] but chose not to defend his title.
Tseng Chun-hsin won the title after Titouan Droguet retired trailing 1–4 in the final.
Dominic Thiem (first round)
Zsombor Piros (quarterfinals) Richard Gasquet (first round)
Pablo Llamas Ruiz (first round)
Andrea Pellegrino (second round) Filip Misolic (first round) Titouan Droguet (final, retired) Matteo Martineau (quarterfinals)| Semifinals | Final | ||||||||||||
| Francesco Maestrelli | 6 | 4 | 4 | ||||||||||
| Q | Tseng Chun-hsin | 3 | 6 | 6 | |||||||||
| Q | Tseng Chun-hsin | 4 | |||||||||||
| 7 | Titouan Droguet | 1r | |||||||||||
| Franco Agamenone | 2 | 2 | |||||||||||
| 7 | Titouan Droguet | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | D Thiem | 3 | 4 | ||||||||||||||||||||||||
| Q |  D Michalski | 6 | 6 | Q | D Michalski | 6 | 6 | ||||||||||||||||||||
| Q |  C Crețu | 6 | 6 | Q | C Crețu | 3 | 1 | ||||||||||||||||||||
| Q | Pol Martín Tiffon | 2 | 1 | Q | D Michalski | 2 | 3 | ||||||||||||||||||||
| F Maestrelli | 7 | 6 | F Maestrelli | 6 | 6 | ||||||||||||||||||||||
| WC | Attila Boros | 5 | 1 | F Maestrelli | 6 | 6 | |||||||||||||||||||||
 T Skatov | 77 | 2 | 4 | 5 | A Pellegrino | 1 | 4 | ||||||||||||||||||||
| 5 | A Pellegrino | 62 | 6 | 6 | F Maestrelli | 6 | 4 | 4 | |||||||||||||||||||
| 3 | R Gasquet | 4 | 2 | Q | C-h Tseng | 3 | 6 | 6 | |||||||||||||||||||
| Q | C-h Tseng | 6 | 6 | Q | C-h Tseng | 2 | 6 | 6 | |||||||||||||||||||
| L Neumayer | 6 | 4 | 3 | Q | S Vincent Ruggeri | 6 | 2 | 3 | |||||||||||||||||||
| Q | Samuel Vincent Ruggeri | 1 | 6 | 6 | Q | C-h Tseng | 6 | 4 | 6 | ||||||||||||||||||
| A Giannessi | 6 | 1 | 6 | 8 | M Martineau | 4 | 6 | 4 | |||||||||||||||||||
| M Bourgue | 4 | 6 | 4 | A Giannessi | 4 | 62 | |||||||||||||||||||||
| M Valkusz | 6 | 1 | 1 | 8 | M Martineau | 6 | 77 | ||||||||||||||||||||
| 8 | M Martineau | 4 | 6 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | F Misolic | 6 | 3 | 4 | |||||||||||||||||||||||
 Z Kolář | 4 | 6 | 6 | Z Kolář | 6 | 7 | |||||||||||||||||||||
| WC | Mátyás Füle | 3 | 0 | M Guinard | 3 | 5 | |||||||||||||||||||||
| M Guinard | 6 | 6 | Z Kolář | 6 | 61 | 3 | |||||||||||||||||||||
 A Shelbayh | 62 | 0 | F Agamenone | 4 | 77 | 6 | |||||||||||||||||||||
| F Agamenone | 77 | 6 | F Agamenone | 4 | 6 | 6 | |||||||||||||||||||||
 N Fatić | 6 | 65 | 6 | N Fatić | 6 | 3 | 0 | ||||||||||||||||||||
| 4 | P Llamas Ruiz | 4 | 77 | 0 | F Agamenone | 2 | 2 | ||||||||||||||||||||
| 7 | T Droguet | 6 | 6 | 7 | T Droguet | 6 | 6 | ||||||||||||||||||||
| E Dalla Valle | 0 | 3 | 7 | T Droguet | 6 | 77 | |||||||||||||||||||||
| WC | Péter Fajta | 2 | 3 |  J Kovalík | 4 | 65 | |||||||||||||||||||||
| J Kovalík | 6 | 6 | 7 | T Droguet | 4 | 6 | 6 | ||||||||||||||||||||
| Q | G Melzer | 3 | 6 | 65 | 2 | Z Piros | 6 | 1 | 4 | ||||||||||||||||||
 S Rodríguez Taverna | 6 | 4 | 77 | S Rodríguez Taverna | 5 | 6 | 3 | ||||||||||||||||||||
| G Fonio | 3 | 2 | 2 | Z Piros | 7 | 2 | 6 | ||||||||||||||||||||
| 2 | Z Piros | 6 | 6 | ||||||||||||||||||||||||
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.
Tallon Griekspoor 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.
Luca Nardi was the defending champion but chose not to defend his title.
Nicolas Moreno de Alboran 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.
Ben Shelton was the defending champion but chose not to defend his title.
Ben Shelton was the defending champion but chose not to defend his title.
Raúl Brancaccio was the defending champion but lost in the first round to Titouan Droguet.
Max Purcell and Jason Taylor were the defending champions but chose not to defend their title.
Alejandro Tabilo was the defending champion but chose not to defend his title.
The 2024 French Open – Men's singles qualifying are a series of tennis matches that will take place from 20 to 24 May 2024 to determine the qualifiers for the 2024 French Open – Men's singles, and, if necessary, the lucky losers.
Emilio Nava 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.
Duje Ajduković was the defending champion but chose not to defend his title.
Mattia Bellucci was the defending champion but chose not to defend his title.
Maxime Cressy was the defending champion but chose not to defend his title.