| Singles | |
|---|---|
| 2023 Cleveland Open | |
| Champion |  Aleksandar Kovacevic |
| Runner-up |  Wu Yibing |
| Score | 3–6, 7–5, 7–6(7–2) |
Dominic Stricker was the defending champion [1] but chose not to defend his title.
Aleksandar Kovacevic won the title after defeating Wu Yibing 3–6, 7–5, 7–6(7–2) in the final.
Emilio Gómez (semifinals) Wu Yibing (final) Steve Johnson (quarterfinals) Jack Sock (first round) Aleksandar Kovacevic (champion) Stefan Kozlov (quarterfinals) Brandon Holt (second round)
Gabriel Diallo (quarterfinals)| Semifinals | Final | ||||||||||||
| 1 | Emilio Gómez | 77 | 4 | 3 | |||||||||
| 5 | Aleksandar Kovacevic | 65 | 6 | 6 | |||||||||
| 5 | Aleksandar Kovacevic | 3 | 7 | 77 | |||||||||
| 2 | Wu Yibing | 6 | 5 | 62 | |||||||||
| Tennys Sandgren | 3 | 2 | |||||||||||
| 2 | Wu Yibing | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | E Gómez | 7 | 6 | ||||||||||||||||||||||||
| Ezekiel Clark | 5 | 2 | 1 | E Gómez | 6 | 3 | 6 | ||||||||||||||||||||
| WC |  Jack Pinnington Jones | 6 | 3 | WC | J Pinnington Jones | 2 | 6 | 2 | |||||||||||||||||||
 E Escobedo | 2 | 1r | 1 | E Gómez | 77 | 4 | 7 | ||||||||||||||||||||
| N Chappell | 3 | 64 | 8 | G Diallo | 65 | 6 | 5 | ||||||||||||||||||||
| M Krueger | 6 | 77 | M Krueger | 78 | 1 | 1 | |||||||||||||||||||||
| Alafia Ayeni | 1 | 1 | 8 | G Diallo | 66 | 6 | 6 | ||||||||||||||||||||
| 8 | G Diallo | 6 | 6 | 1 | E Gómez | 77 | 4 | 3 | |||||||||||||||||||
| 3 | S Johnson | 6 | 77 | 5 | A Kovacevic | 65 | 6 | 6 | |||||||||||||||||||
 J Forejtek | 4 | 62 | 3 | S Johnson | 711 | 6 | |||||||||||||||||||||
| K Smith | 6 | 4 | 4 | K Seelig | 69 | 2 | |||||||||||||||||||||
| Kyle Seelig | 2 | 6 | 6 | 3 | S Johnson | 77 | 5 | 4 | |||||||||||||||||||
| Q | TA Kodat | 5 | 7 | 3 | 5 | A Kovacevic | 65 | 7 | 6 | ||||||||||||||||||
 I Marchenko | 7 | 5 | 6 | I Marchenko | 5 | 3 | |||||||||||||||||||||
| A Rybakov | 67 | 79 | 2 | 5 | A Kovacevic | 7 | 6 | ||||||||||||||||||||
| 5 | A Kovacevic | 79 | 67 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | B Holt | 6 | 6 | ||||||||||||||||||||||||
| Q | A Perez | 4 | 2 | 7 | B Holt | 3 | 6 | 2 | |||||||||||||||||||
 Elmar Ejupovic | 2 | 77 | 64 | T Sandgren | 6 | 4 | 6 | ||||||||||||||||||||
| T Sandgren | 6 | 64 | 77 | T Sandgren | 6 | 2 | 77 | ||||||||||||||||||||
| Q |  M Pecotić | 1 | 2 | Z Svajda | 0 | 6 | 61 | ||||||||||||||||||||
| Z Svajda | 6 | 6 | Z Svajda | 7 | 6 | ||||||||||||||||||||||
| WC | A Michelsen | 77 | 6 | WC | A Michelsen | 5 | 3 | ||||||||||||||||||||
| 4 | J Sock | 63 | 4 | T Sandgren | 3 | 2 | |||||||||||||||||||||
| 6/WC | S Kozlov | 6 | 710 | 2 | Y Wu | 6 | 6 | ||||||||||||||||||||
| Alt | P Kypson | 4 | 68 | 6/WC | S Kozlov | 6 | 6 | ||||||||||||||||||||
| Q | R Harrison | 6 | 6 | Q | R Harrison | 4 | 4 | ||||||||||||||||||||
| Q |  Jaimee Floyd Angele | 2 | 1 | 6/WC | S Kozlov | 4 | 1 | ||||||||||||||||||||
| E Zhu | 2 | 5 | 2 | Y Wu | 6 | 6 | |||||||||||||||||||||
| S Kirchheimer | 6 | 7 | S Kirchheimer | 69 | 61 | ||||||||||||||||||||||
| Q | Aidan Mayo | 1 | 6 | 4 | 2 | Y Wu | 711 | 77 | |||||||||||||||||||
| 2 | Y Wu | 6 | 0 | 6 | |||||||||||||||||||||||
Omar Jasika was the defending champion, but he chose not to participate. Taylor Harry Fritz won the title, defeating Tommy Paul in the final, 6–2, 6–7(4–7), 6–2.
Alex de Minaur and Blake Ellis were the defending champions, but both players chose not to participate.
Félix Auger-Aliassime was the defending champion, but chose not to participate.
Juan Carlos Aguilar and Felipe Meligeni Alves were the defending champions, but both players were ineligible to participate.
Henri Laaksonen was the defending champion but chose not to defend his title.
Nikola Milojević was the defending champion but chose not to defend his title.
Blaž Kavčič was the defending champion but chose not to defend his title.
Christopher Eubanks was the defending champion but lost in the quarterfinals to Wu Yibing.
Wu Yibing defeated Aleksandar Kovacevic in the final, 6–7(10–12), 7–6(15–13), 6–3, to win the singles tennis title at the 2022 Indy Challenger. Wu saved six championship points en route to his third consecutive title on the 2022 ATP Challenger Tour.
Jason Kubler was the defending champion but chose not to defend his title.
Yoshihito Nishioka was the defending champion but chose not to defend his title.
Yoshihito Nishioka defeated Denis Shapovalov in the final, 6–4, 7–6(7–5) to win the men's singles tennis title at the 2022 Korea Open. It was his first ATP Tour title since Shenzhen in 2018.
Kwon Soon-woo was the defending champion but chose not to defend his title.
Max Purcell and Luke Saville were the defending champions but only Purcell chose to defend his title, partnering Marc Polmans. Purcell withdrew before his semifinal match against Chung Yun-seong and Aleksandar Kovacevic due to injury.
J. J. Wolf was the defending champion but chose not to defend his title.
Stefan Kozlov was the defending champion but lost in the second round to Lucas Gerch.
Christopher Eubanks was the defending champion but lost in the final to Ben Shelton.
Wu Yibing defeated John Isner in the final, 6–7(4–7), 7–6(7–3), 7–6(14–12) to win the singles tennis title at the 2023 Dallas Open. Wu became the first Chinese man in the Open Era to reach an ATP Tour singles final and win a title. He saved four championship points en route to the title.
Andy Murray won the title of the men's singles tennis tournament at the 2023 Nottingham Open after defeating Arthur Cazaux 6–4, 6–4 in the final.
Alexander Shevchenko was the defending champion but lost in the first round to Jakub Menšík.