| Singles | |
|---|---|
| 2024 Brawo Open | |
| Champion |  Roberto Carballés Baena |
| Runner-up |  Botic van de Zandschulp |
| Score | 6–1, 6–3 |
Franco Agamenone was the defending champion [1] but lost in the first round of qualifying to Yanaki Milev.
Roberto Carballés Baena won the title after defeating Botic van de Zandschulp 6–1, 6–3 in the final. [2]
Roberto Carballés Baena (champion)
Sumit Nagal (second round)
Thiago Seyboth Wild (first round, retired)
Daniel Altmaier (first round) Botic van de Zandschulp (final)
Daniel Elahi Galán (quarterfinals)
Damir Džumhur (withdrew)
Cristian Garín (quarterfinals)| Semifinals | Final | ||||||||||||
| 1 | Roberto Carballés Baena | 6 | 6 | ||||||||||
 Pierre-Hugues Herbert | 4 | 1 | |||||||||||
| 1 | Roberto Carballés Baena | 6 | 6 | ||||||||||
| 5 | Botic van de Zandschulp | 1 | 3 | ||||||||||
| 5 | Botic van de Zandschulp | 6 | 65 | 6 | |||||||||
 Pedro Cachín | 2 | 77 | 3 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | R Carballés Baena | 6 | 2 | 6 | |||||||||||||||||||||||
| WC | R Molleker | 1 | 6 | 3 | 1 | R Carballés Baena | 6 | 6 | |||||||||||||||||||
 L Klein | 63 | 77 | 6 | L Klein | 2 | 4 | |||||||||||||||||||||
| J Kovalík | 77 | 63 | 1 | 1 | R Carballés Baena | 4 | 6 | 7 | |||||||||||||||||||
 J Rodionov | 6 | 5 | 3 | 8 | C Garín | 6 | 3 | 5 | |||||||||||||||||||
 M Kukushkin | 3 | 7 | 6 | M Kukushkin | 6 | 2 | 3 | ||||||||||||||||||||
 M Dodig | 6 | 3 | 4 | 8 | C Garín | 4 | 6 | 6 | |||||||||||||||||||
| 8 | C Garín | 4 | 6 | 6 | 1 | R Carballés Baena | 6 | 6 | |||||||||||||||||||
| 3 | T Seyboth Wild | 2 | 0r | P-H Herbert | 4 | 1 | |||||||||||||||||||||
| WC | N Kuhn | 6 | 1 | WC | N Kuhn | 1 | 5 | ||||||||||||||||||||
| Q | Tom Gentzsch | 6 | 4 | 4 | P-H Herbert | 6 | 7 | ||||||||||||||||||||
| P-H Herbert | 2 | 6 | 6 | P-H Herbert | 6 | 6 | |||||||||||||||||||||
| Q | Stijn Slump | 4 | 611 | D Ajduković | 3 | 4 | |||||||||||||||||||||
| D Ajduković | 6 | 713 | D Ajduković | 6 | 6 | ||||||||||||||||||||||
| D Yevseyev | 1 | 6 | 4 | LL | C Sánchez Jover | 4 | 4 | ||||||||||||||||||||
| LL | C Sánchez Jover | 6 | 2 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | B van de Zandschulp | 6 | 6 | ||||||||||||||||||||||||
| Alt | M Martineau | 2 | 4 | 5 | B van de Zandschulp | 6 | 6 | ||||||||||||||||||||
| Q |  M Geerts | 1 | 4 |  B Hassan | 1 | 2 | |||||||||||||||||||||
| B Hassan | 6 | 6 | 5 | B van de Zandschulp | 7 | 77 | |||||||||||||||||||||
| Alt | H Squire | 5 | 77 | 77 | Alt | H Squire | 5 | 62 | |||||||||||||||||||
| SE | D Masur | 7 | 64 | 65 | Alt | H Squire | 64 | 6 | 6 | ||||||||||||||||||
| Q | MH Rehberg | 2 | 77 | 6 | Q | MH Rehberg | 77 | 2 | 4 | ||||||||||||||||||
| 4/WC | D Altmaier | 6 | 61 | 3 | 5 | B van de Zandschulp | 6 | 65 | 6 | ||||||||||||||||||
| 6 | DE Galán | 6 | 6 | P Cachín | 2 | 77 | 3 | ||||||||||||||||||||
| Q | M Möller | 3 | 4 | 6 | DE Galán | 77 | 6 | ||||||||||||||||||||
 JP Varillas | 77 | 6 | JP Varillas | 62 | 4 | ||||||||||||||||||||||
| Q | S Fanselow | 62 | 3 | 6 | DE Galán | 4 | 4 | ||||||||||||||||||||
| P Cachín | 6 | 6 | P Cachín | 6 | 6 | ||||||||||||||||||||||
| G Barrère | 3 | 4 | P Cachín | 6 | 7 | ||||||||||||||||||||||
| F Meligeni Alves | 1 | 4 | 2 | S Nagal | 4 | 5 | |||||||||||||||||||||
| 2 | S Nagal | 6 | 6 | ||||||||||||||||||||||||
Stanislas Wawrinka was the defending champion, but withdrew before the event started.
Carlos Berlocq won the title, defeating Tomáš Berdych in the final, 0–6, 7–5, 6–1.
Roberto Carballés Baena was the defending champion but retired in the second round facing Maximilian Marterer.
Roberto Carballés Baena was the defending champion but lost in the quarterfinals to Uladzimir Ignatik.
Víctor Estrella Burgos was the three-time defending champion and the tournament's only champion to date, but lost in the second round to Gerald Melzer.
Gianluca Mager was the defending champion but chose not to defend his title.
Botic van de Zandschulp was the defending champion but withdrew before his semifinal match against Taro Daniel.
Juan Pablo Varillas was the defending champion but chose not to participate.
This was the first of the three tournaments held in Belgrade for the 2021 tennis season. Belgrade also hosted a joint ATP/WTA tournament.
Matteo Berrettini defeated Aslan Karatsev in the final, 6–1, 3–6, 7–6(7–0) to win the men's singles tennis title at the 2021 Serbia Open.
Andrey Rublev was the defending champion, but lost in the quarterfinals to Botic van de Zandschulp.
Carlos Alcaraz defeated Diego Schwartzman in the final, 6–4, 6–2 to win the singles title at the 2022 Rio Open. Alcaraz became the youngest winner of an ATP 500 event since the category was created in 2009.
Carlos Alcaraz defeated Pablo Carreño Busta in the final, 6–3, 6–2 to win the singles tennis title at the 2022 Barcelona Open. Alcaraz saved two match points en route to the title, in the semifinals against Alex de Minaur. With the win, Alcaraz entered the top 10 in rankings for the first time in his career, becoming the youngest man to do so since Rafael Nadal in 2005.
Holger Rune defeated Botic van de Zandschulp in the final by retirement, 3–4 to win the singles tennis title at the 2022 Bavarian International Tennis Championships. It was Rune's first ATP Tour title, making him the third-youngest tournament champion in the Open Era and the first Dane to win an ATP title since Kenneth Carlsen at 2005 Memphis. Van de Zandschulp was also contesting for his first title in his first tour final.
Stefanos Tsitsipas defeated Roberto Bautista Agut in the final, 6–4, 3–6, 7–6(7–2) to win the singles title at the 2022 Mallorca Championships.
Tallon Griekspoor was the defending champion and successfully defended his title, defeating Roberto Carballés Baena 6–1, 6–2 in the final.
Pedro Martínez was the defending champion but lost in the first round to Kimmer Coppejans.
Roberto Carballés Baena defeated Alexandre Müller in the final, 4–6, 7–6(7–3), 6–2 to win the men's singles tennis title at the 2023 Grand Prix Hassan II. It was his second ATP Tour singles title.
Defending champion Holger Rune defeated Botic van de Zandschulp in a rematch of the previous year's final, 6–4, 1–6, 7–6(7–3) to win the singles tennis title at the 2023 Bavarian International Tennis Championships. In the third set of the final, Rune recovered from being a double-break down and saved four championship points en route to victory.
Novak Djokovic defeated Grigor Dimitrov in the final, 6–4, 6–3 to win the singles tennis title at the 2023 Paris Masters. It was his record-extending seventh Paris Masters title and record-extending 40th Masters title overall, and he extended his winning streak to 18 matches with the win.
Pierre-Hugues Herbert and Arthur Reymond were the defending champions but chose not to defend their title.