| Singles | |
|---|---|
| 2024 Bad Waltersdorf Trophy | |
| Champion |  Jaume Munar |
| Runner-up |  Thiago Seyboth Wild |
| Score | 6–2, 6–1 |
Andrea Pellegrino was the defending champion [1] but withdrew from the tournament before his first round match.
Jaume Munar won the title after defeating Thiago Seyboth Wild 6–2, 6–1 in the final. [2]
Jaume Munar (champion) Thiago Monteiro (quarterfinals, retired)
Federico Coria (first round) Thiago Seyboth Wild (final)
Francesco Passaro (first round)
Laslo Djere (semifinals) Albert Ramos Viñolas (second round)
Daniel Elahi Galán (second round)| Semifinals | Final | ||||||||||||
| 1 | Jaume Munar | 5 | 712 | 6 | |||||||||
 Nicolas Moreno de Alboran | 7 | 610 | 1 | ||||||||||
| 1 | Jaume Munar | 6 | 6 | ||||||||||
| 4 | Thiago Seyboth Wild | 2 | 1 | ||||||||||
| 4 | Thiago Seyboth Wild | 6 | 6 | ||||||||||
| 6 | Laslo Djere | 1 | 4 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | J Munar | 5 | 6 | 6 | |||||||||||||||||||||||
 T Barrios Vera | 7 | 4 | 2 | 1 | J Munar | 6 | 6 | ||||||||||||||||||||
| LL |  K Feldbausch | 4 | 3 | Alt |  D Novak | 3 | 2 | ||||||||||||||||||||
| Alt | D Novak | 6 | 6 | 1 | J Munar | 6 | 6 | ||||||||||||||||||||
| Q |  C İlkel | 7 | 4 | 61 |  M Dodig | 1 | 4 | ||||||||||||||||||||
| M Dodig | 5 | 6 | 77 | M Dodig | 77 | 6 | |||||||||||||||||||||
| LL | N Serdarušić | 77 | 1 | 4 | 8 | DE Galán | 65 | 3 | |||||||||||||||||||
| 8 | DE Galán | 64 | 6 | 6 | 1 | J Munar | 5 | 712 | 6 | ||||||||||||||||||
| 3 | F Coria | 4 | 65 | N Moreno de Alboran | 7 | 610 | 1 | ||||||||||||||||||||
| Q | M Brunold | 6 | 77 | Q | M Brunold | 5 | 4 | ||||||||||||||||||||
| Q | D Pichler | 77 | 66 | 4 | Alt |  G Blancaneaux | 7 | 6 | |||||||||||||||||||
| Alt | G Blancaneaux | 64 | 78 | 6 | Alt | G Blancaneaux | 2 | 1 | |||||||||||||||||||
| N Moreno de Alboran | 6 | 6 | N Moreno de Alboran | 6 | 6 | ||||||||||||||||||||||
| Alt | F Arnaboldi | 1 | 3 | N Moreno de Alboran | 6 | 6 | |||||||||||||||||||||
 H Squire | 6 | 78 | H Squire | 3 | 4 | ||||||||||||||||||||||
| 5 | F Passaro | 4 | 66 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | A Ramos Viñolas | 6 | 6 | ||||||||||||||||||||||||
| WC | L Neumayer | 2 | 2 | 7 | A Ramos Viñolas | 1 | 711 | 1 | |||||||||||||||||||
| Alt | C Taberner | 6 | 6 | Alt | C Taberner | 6 | 69 | 6 | |||||||||||||||||||
| WC | J Schwärzler | 4 | 3 | Alt | C Taberner | 2 | 2 | ||||||||||||||||||||
| Q |  M Vrbenský | 5 | 6 | 6 | 4 | T Seyboth Wild | 6 | 6 | |||||||||||||||||||
| J Barranco Cosano | 7 | 3 | 1 | Q | M Vrbenský | 1 | 4 | ||||||||||||||||||||
 D Popko | 65 | 6 | 2 | 4 | T Seyboth Wild | 6 | 6 | ||||||||||||||||||||
| 4 | T Seyboth Wild | 77 | 2 | 6 | 4 | T Seyboth Wild | 6 | 6 | |||||||||||||||||||
| 6 | L Djere | 77 | 0 | 6 | 6 | L Djere | 1 | 4 | |||||||||||||||||||
| Q |  J Choinski | 64 | 6 | 4 | 6 | L Djere | 6 | 77 | |||||||||||||||||||
| Q | T Handel | 65 | 5 | Alt | F Misolic | 4 | 63 | ||||||||||||||||||||
| Alt | F Misolic | 77 | 7 | 6 | L Djere | 6 | 4 | ||||||||||||||||||||
| V Kopřiva | 3 | 6 | 4 | 2 | T Monteiro | 4 | 1r | ||||||||||||||||||||
| WC | Sandro Kopp | 6 | 1 | 6 | WC | S Kopp | 1 | 64 | |||||||||||||||||||
 V Gaubas | 5 | 3 | 2 | T Monteiro | 6 | 77 | |||||||||||||||||||||
| 2 | T Monteiro | 7 | 6 | ||||||||||||||||||||||||
Benjamin Bonzi and Quentin Halys were the defending champions, but were not eligible to compete this year.
This was the first edition of the tournament.
Guido Andreozzi was the defending champion but chose not to defend his title.
Guido Pella was the defending champion but chose not to defend his title.
Thiago Seyboth Wild was the defending champion but chose not to defend his title.
Thiago Monteiro was the defending champion but chose not to defend his title.
This was the first edition of the tournament and first of two editions of the tournament to start the 2021 ATP Challenger Tour year.
Jaume Munar was the defending champion but lost in the final to Carlos Taberner 4–6, 1–6.
Diego Schwartzman defeated Francisco Cerúndolo in the final, 6–1, 6–2 to win the men's singles tennis title at the 2021 Argentina Open.
Jaume Munar was the defending champion but chose not to defend his title.
Francisco Cerúndolo was the defending champion but lost in the second round to Gonçalo Oliveira.
Jaume Munar was the defending champion but lost in the semifinals to Juan Ignacio Londero.
Francisco Cerúndolo was the defending champion but lost in the semifinals to Sebastián Báez.
This was the first edition of the tournament.
Tomás Martín Etcheverry was the defending champion but lost in the final to Jaume Munar.
Pavel Kotov was the defending champion but chose not to defend his title.
Thiago Seyboth Wild was the defending champion but lost in the first round to Andrea Picchione.
Federico Coria was the defending champion but lost in the semifinals to Vít Kopřiva.
Flavio Cobolli was the defending champion but chose not to defend his title.
Jack Draper defeated Karen Khachanov in the final, 6–4, 7–5 to win the singles tennis title at the 2024 Vienna Open. It was his second ATP Tour title and first at the ATP 500 level.