| Singles | |
|---|---|
| 2023 Internazionali di Tennis Città di Trieste | |
| Champion |  Hugo Gaston |
| Runner-up |  Francesco Passaro |
| Score | 6–3, 5–7, 6–2 |
Francesco Passaro was the defending champion [1] but lost in the final to Hugo Gaston.
Gaston won the title after defeating Passaro 6–3, 5–7, 6–2 in the final.
Fábián Marozsán (semifinals)
Pedro Martínez (semifinals)
Tomás Barrios Vera (first round) Hugo Gaston (champion) Alejandro Tabilo (withdrew) Francesco Passaro (final) Flavio Cobolli (second round)
Zdeněk Kolář (second round)| Semifinals | Final | ||||||||||||
| 1 | Fábián Marozsán | 6 | 5 | 2 | |||||||||
| 6 | Francesco Passaro | 3 | 7 | 6 | |||||||||
| 6 | Francesco Passaro | 3 | 7 | 2 | |||||||||
| 4/SE | Hugo Gaston | 6 | 5 | 6 | |||||||||
| 4/SE | Hugo Gaston | 6 | 3 | 6 | |||||||||
| 2 | Pedro Martínez | 3 | 6 | 2 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | F Marozsán | 6 | 77 | ||||||||||||||||||||||||
| LL |  G Villanueva | 2 | 63 | 1 | F Marozsán | 77 | 3 | 7 | |||||||||||||||||||
| Q | C Tabur | 4 | 77 | 3 | M Gigante | 64 | 6 | 5 | |||||||||||||||||||
| M Gigante | 6 | 65 | 6 | 1 | F Marozsán | 6 | 6 | ||||||||||||||||||||
| Alt |  C-h Tseng | 6 | 63 | 67 | WC | E Dalla Valle | 1 | 4 | |||||||||||||||||||
| WC | Enrico Dalla Valle | 4 | 77 | 79 | WC | E Dalla Valle | 77 | 6 | |||||||||||||||||||
| A Pellegrino | 4 | 5 | 7 | F Cobolli | 65 | 1 | |||||||||||||||||||||
| 7 | F Cobolli | 6 | 7 | 1 | F Marozsán | 6 | 5 | 2 | |||||||||||||||||||
| 3 | T Barrios Vera | 5 | 2 | 6 | F Passaro | 3 | 7 | 6 | |||||||||||||||||||
| G Andreozzi | 7 | 6 | G Andreozzi | 6 | 77 | ||||||||||||||||||||||
| Alt | M Bourgue | 4 | 2 |  A Andreev | 3 | 65 | |||||||||||||||||||||
| A Andreev | 6 | 6 | G Andreozzi | 6 | 1 | 4 | |||||||||||||||||||||
 D Prižmić | 6 | 6 | 6 | F Passaro | 3 | 6 | 6 | ||||||||||||||||||||
 M Polmans | 4 | 2 | D Prižmić | 6 | 4 | 2 | |||||||||||||||||||||
| L Darderi | 4 | 4 | 6 | F Passaro | 4 | 6 | 6 | ||||||||||||||||||||
| 6 | F Passaro | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| Q | K Jacquet | 6 | 711 | ||||||||||||||||||||||||
| Q | C Taberner | 3 | 69 | Q | K Jacquet | 6 | 6 | ||||||||||||||||||||
 L Neumayer | 4 | 6 | 4 |  V Sachko | 3 | 4 | |||||||||||||||||||||
| V Sachko | 6 | 4 | 6 | Q | K Jacquet | 6 | 4 | 4 | |||||||||||||||||||
| RA Burruchaga | 6 | 1 | 6 | 4/SE | H Gaston | 4 | 6 | 6 | |||||||||||||||||||
| LL |  Andrey Chepelev | 2 | 6 | 4 | RA Burruchaga | 3 | 6 | 0 | |||||||||||||||||||
| S Caruso | 1 | 0 | 4/SE | H Gaston | 6 | 4 | 6 | ||||||||||||||||||||
| 4/SE | H Gaston | 6 | 6 | 4/SE | H Gaston | 6 | 3 | 6 | |||||||||||||||||||
| 8 | Z Kolář | 77 | 2 | 6 | 2 | P Martínez | 3 | 6 | 2 | ||||||||||||||||||
| WC | Gabriele Piraino | 65 | 6 | 3 | 8 | Z Kolář | 6 | 64 | 60 | ||||||||||||||||||
| Q | S Napolitano | 6 | 6 | Q | S Napolitano | 4 | 77 | 77 | |||||||||||||||||||
| A Giannessi | 4 | 2 | Q | S Napolitano | 2 | 4 | |||||||||||||||||||||
| Q | C Sánchez Jover | 5 | 6 | 63 | 2 | P Martínez | 6 | 6 | |||||||||||||||||||
| WC | Marcello Serafini | 7 | 1 | 77 | WC | M Serafini | 3 | 5 | |||||||||||||||||||
| Q |  P Gojowczyk | 1 | 3 | 2 | P Martínez | 6 | 7 | ||||||||||||||||||||
| 2 | P Martínez | 6 | 6 | ||||||||||||||||||||||||
Hugo Gaston and Clément Tabur won the boys' doubles tennis title at the 2018 Australian Open, defeating Rudolf Molleker and Henri Squire in the final, 6–2, 6–2.
Jonáš Forejtek and Dalibor Svrčina won the boys' doubles tennis title at the 2019 Australian Open, defeating Cannon Kingsley and Emilio Nava in the final, 7–6(7–5), 6–4.
Carlos Taberner was the defending champion but chose not to defend his title.
Casper Ruud defeated Hugo Gaston in the final, 6–3, 6–2, to win the men's singles tennis title at the 2021 Swiss Open.
Félix Auger-Aliassime defeated Stefanos Tsitsipas in the final, 6–4, 6–2. It was his maiden ATP Tour singles title, following eight runner-up finishes in prior finals.
This was the first edition of the tournament since it was discontinued in 2011.
This was the inaugural edition of the singles competition of the 2022 Forlì Open tennis tournament.
Gian Marco Moroni was the defending champion but withdrew from the tournament due to a back injury.
Tomás Martín Etcheverry was the defending champion but chose not to defend his title.
Renzo Olivo was the defending champion but lost in the semifinals to Andrea Vavassori.
Juan Manuel Cerúndolo was the defending champion but chose not to defend his title.
Lorenzo Sonego was the defending champion but chose not to defend his title.
Dmitry Popko was the defending champion but chose not to defend his title.
Lorenzo Musetti defeated Matteo Berrettini in the final, 7–6(7–5), 6–2 to win the singles tennis title at the 2022 Napoli Cup. It was his second career ATP Tour singles title.
Hugo Grenier was the defending champion but lost in the first round to Otto Virtanen.
The 2023 Australian Open – Men's singles qualifying was a series of tennis matches that took place from 9 to 12 January 2023 to determine the sixteen qualifiers into the main draw of the men's singles tournament, and, if necessary, the lucky losers.
Jordan Thompson was the defending champion but chose not to defend his title.
Pedro Cachin was the defending champion but lost in the final to Alexander Shevchenko.
Federico Coria was the defending champion but chose not to defend his title.
Francesco Maestrelli was the defending champion but chose not to defend his title.