| Singles | |
|---|---|
| 2023 Knoxville Challenger | |
| Champion |  Alex Michelsen |
| Runner-up | Denis Kudla |
| Score | 7–5, 4–6, 6–2 |
Ben Shelton was the defending champion [1] but chose not to defend his title.
Alex Michelsen won the title after defeating Denis Kudla 7–5, 4–6, 6–2 in the final.
Michael Mmoh (first round) Aleksandar Kovacevic (first round) Alex Michelsen (champion) Zachary Svajda (quarterfinals) Emilio Nava (semifinals)
Titouan Droguet (first round)
Adam Walton (withdrew)
Shang Juncheng (first round)| Semifinals | Final | ||||||||||||
| Denis Kudla | 5 | 6 | 6 | ||||||||||
| 5 | Emilio Nava | 7 | 4 | 1 | |||||||||
| Denis Kudla | 5 | 6 | 2 | ||||||||||
| 3 | Alex Michelsen | 7 | 4 | 6 | |||||||||
| 3 | Alex Michelsen | 6 | 2 | 6 | |||||||||
| Tennys Sandgren | 2 | 6 | 4 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | M Mmoh | 4 | 3 | ||||||||||||||||||||||||
| M Damm | 6 | 6 | M Damm | 64 | 3 | ||||||||||||||||||||||
| D Kudla | 65 | 6 | 6 | D Kudla | 77 | 6 | |||||||||||||||||||||
| P Kypson | 77 | 3 | 4 | D Kudla | 6 | 77 | |||||||||||||||||||||
| Q | T-S Kwiatkowski | 65 | 6 | 6 |  A McHugh | 3 | 65 | ||||||||||||||||||||
| WC | S Kirchheimer | 77 | 2 | 4 | Q | T-S Kwiatkowski | 6 | 4 | 3 | ||||||||||||||||||
| A McHugh | 3 | 7 | 6 | A McHugh | 0 | 6 | 6 | ||||||||||||||||||||
| LL |  A Cozbinov | 6 | 5 | 3 | D Kudla | 5 | 6 | 6 | |||||||||||||||||||
| 4 | Z Svajda | 6 | 6 | 5 | Em Nava | 7 | 4 | 1 | |||||||||||||||||||
| SE | Aidan Mayo | 3 | 4 | 4 | Z Svajda | 6 | 7 | ||||||||||||||||||||
| Q |  S Fanselow | 6 | 6 | Q | S Fanselow | 2 | 5 | ||||||||||||||||||||
| Q | C Kingsley | 4 | 2 | 4 | Z Svajda | 4 | 4 | ||||||||||||||||||||
| LL | C Harrison | 1 | 4 | 5 | Em Nava | 6 | 6 | ||||||||||||||||||||
| Q | Murphy Cassone | 6 | 6 | Q | M Cassone | 4 | 4 | ||||||||||||||||||||
 N Serdarušić | 4 | 4 | 5 | Em Nava | 6 | 6 | |||||||||||||||||||||
| 5 | Em Nava | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | T Droguet | 4 | 1 | ||||||||||||||||||||||||
 B Zhukayev | 6 | 6 | B Zhukayev | 4 | 2 | ||||||||||||||||||||||
| Q | M Rosenkranz | 6 | 2 | 5 | WC | N Basavareddy | 6 | 6 | |||||||||||||||||||
| WC | N Basavareddy | 4 | 6 | 7 | WC | N Basavareddy | 3 | 3 | |||||||||||||||||||
| WC | J Monday | 6 | 5 | 3 | 3 | A Michelsen | 6 | 6 | |||||||||||||||||||
| G Debru | 4 | 7 | 6 | G Debru | 3 | 6 | 4 | ||||||||||||||||||||
| B Tomic | 6 | 65 | 4 | 3 | A Michelsen | 6 | 3 | 6 | |||||||||||||||||||
| 3 | A Michelsen | 4 | 77 | 6 | 3 | A Michelsen | 6 | 2 | 6 | ||||||||||||||||||
| 8 | J Shang | 6 | 69 | 2 | T Sandgren | 2 | 6 | 4 | |||||||||||||||||||
 A Ritschard | 3 | 711 | 6 | A Ritschard | 6 | 6 | |||||||||||||||||||||
| Q |  E Karlovskiy | 5 | 2 | M Krueger | 2 | 4 | |||||||||||||||||||||
| M Krueger | 7 | 6 | A Ritschard | 69 | 4 | ||||||||||||||||||||||
| T Sandgren | 4 | 78 | 77 | T Sandgren | 711 | 6 | |||||||||||||||||||||
| E Quinn | 6 | 66 | 63 | T Sandgren | 6 | 7 | |||||||||||||||||||||
| B Holt | 6 | 3 | 77 | B Holt | 3 | 5 | |||||||||||||||||||||
| 2 | A Kovacevic | 4 | 6 | 61 | |||||||||||||||||||||||
Bruno Kuzuhara and Coleman Wong defeated Alex Michelsen and Adolfo Daniel Vallejo in the final, 6–3, 7–6(7–3) to win the boys' doubles title at the 2022 Australian Open. Wong became the first Hongkonger win an Australian Open title, and the first Hongkonger to win two titles at majors, having previously won the junior doubles at the 2021 US Open.
Bruno Kuzuhara defeated Jakub Menšík in the final, 7–6(7–4), 6–7(6–8), 7–5 to win the boys' singles title at the 2022 Australian Open.
Defending champions Rajeev Ram and Joe Salisbury defeated Wesley Koolhof and Neal Skupski in the final, 7–6(7–4), 7–5 to win the men's doubles tennis title at the 2022 US Open. They became the second team in the Open Era to defend the US Open title, after Todd Woodbridge and Mark Woodforde in 1996. It was both men's fifth major title.
Tommy Paul was the defending champion but chose not to defend his title.
Christopher O'Connell was the defending champion but chose not to defend his title.
Christopher Eubanks was the defending champion but lost in the final to Ben Shelton.
William Blumberg and Max Schnur were the defending champions but only Blumberg chose to defend his title, partnering Keegan Smith. Blumberg lost in the first round to Nick Chappell and Alex Michelsen.
Wu Yibing was the defending champion but chose not to defend his title.
Jack Sock was the defending champion but chose not to defend his title.
Christopher Eubanks defeated Adrian Mannarino in the final, 6–1, 6–4 to win the singles title at the 2023 Mallorca Championships. It was Eubanks' first ATP singles title. He saved five match points in the semifinals against Lloyd Harris.
Roman Safiullin was the defending champion but chose not to defend his title.
Adam Walton was the defending champion but lost in the second round to Patrick Kypson.
Zachary Svajda was the defending champion and successfully defended his title after defeating Adam Walton 6–2, 6–2 in the final.
Michael Mmoh was the defending champion but chose not to defend his title.
Ben Shelton was the defending champion but chose not to defend his title.
Hunter Reese and Tennys Sandgren were the defending champions but only Sandgren chose to defend his title, partnering Marcus Willis. Sandgren lost in the quarterfinals to Evgeny Karlovskiy and Nino Serdarušić.
Ben Shelton was the defending champion but chose not to defend his title.
Grigor Dimitrov defeated Holger Rune in the final, 7–6(7–5), 6–4 to win the men's singles tennis title at the 2024 Brisbane International. This was Dimitrov's second title in Brisbane and his first ATP Tour title overall since the 2017 ATP Finals.
Alejandro Tabilo defeated Taro Daniel in the final, 6–2, 7–5 to win the men's singles tennis title at the 2024 ASB Classic. It was his first ATP Tour title, and he became the first qualifer to win an ATP Tour title since Juan Manuel Cerúndolo in 2021.
Francisco Comesaña was the defending champion but chose not to defend his title.