| Men's singles | |
|---|---|
| 2023 Lexington Challenger | |
| Champion |  Steve Johnson |
| Runner-up |  Arthur Cazaux |
| Score | 7–6(7–5), 6–4 |
Shang Juncheng was the defending champion [1] but chose not to defend his title.
Steve Johnson won the title after defeating Arthur Cazaux 7–6(7–5), 6–4 in the final.
Arthur Cazaux (final) Steve Johnson (champion)
Wu Tung-lin (quarterfinals)
Hong Seong-chan (quarterfinals) Tennys Sandgren (semifinals)
Dane Sweeny (second round) Adam Walton (second round) Tristan Schoolkate (second round)| Semifinals | Final | ||||||||||||
| 1 | Arthur Cazaux | 6 | 78 | ||||||||||
| WC | Cannon Kingsley | 2 | 66 | ||||||||||
| 1 | Arthur Cazaux | 65 | 4 | ||||||||||
| 2 | Steve Johnson | 77 | 6 | ||||||||||
| 5 | Tennys Sandgren | 61 | 3 | ||||||||||
| 2 | Steve Johnson | 77 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Cazaux | 7 | 4 | 6 | |||||||||||||||||||||||
| Q |  J Boulais | 5 | 6 | 4 | 1 | A Cazaux | 6 | 6 | |||||||||||||||||||
 R Peniston | 5 | 2 | O Jasika | 2 | 3 | ||||||||||||||||||||||
| O Jasika | 7 | 6 | 1 | A Cazaux | 6 | 6 | |||||||||||||||||||||
| Alt | Nathan Ponwith | 4 | 1 | Q | A Mayo | 1 | 4 | ||||||||||||||||||||
| Q | A Mayo | 6 | 6 | Q | A Mayo | 3 | 6 | 6 | |||||||||||||||||||
| Q | P Sekulic | 6 | 63 | 1 | 8 | T Schoolkate | 6 | 4 | 3 | ||||||||||||||||||
| 8 | T Schoolkate | 3 | 77 | 6 | 1 | A Cazaux | 6 | 78 | |||||||||||||||||||
| 3 | T-l Wu | 6 | 6 | WC | C Kingsley | 2 | 66 | ||||||||||||||||||||
| Christian Langmo | 4 | 4 | 3 | T-l Wu | 6 | 77 | |||||||||||||||||||||
 AD Vallejo | 6 | 4 | 6 | AD Vallejo | 4 | 64 | |||||||||||||||||||||
| A Bolt | 4 | 6 | 1 | 3 | T-l Wu | 3 | 2 | ||||||||||||||||||||
| WC | C Kingsley | 6 | 4 | 6 | WC | C Kingsley | 6 | 6 | |||||||||||||||||||
| Q |  Yuki Mochizuki | 4 | 6 | 3 | WC | C Kingsley | 6 | 7 | |||||||||||||||||||
| Q | T Boyer | 3 | 4 | 6 | D Sweeny | 4 | 5 | ||||||||||||||||||||
| 6 | D Sweeny | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | T Sandgren | 7 | 6 | ||||||||||||||||||||||||
| WC | Joshua Lapadat | 5 | 3 | 5 | T Sandgren | 6 | 6 | ||||||||||||||||||||
| S Kirchheimer | 64 | 77 | 77 | S Kirchheimer | 2 | 4 | |||||||||||||||||||||
| WC | M Damm | 77 | 65 | 64 | 5 | T Sandgren | 6 | 6 | |||||||||||||||||||
| B Tomic | 6 | 2 | 6 | 4 | S-c Hong | 4 | 2 | ||||||||||||||||||||
| Q | Stefan Dostanic | 4 | 6 | 1 | B Tomic | 1 | 2 | ||||||||||||||||||||
 NH Lý | 1 | 5 | 4 | S-c Hong | 6 | 6 | |||||||||||||||||||||
| 4 | S-c Hong | 6 | 7 | 5 | T Sandgren | 61 | 3 | ||||||||||||||||||||
| 7 | A Walton | 4 | 6 | 6 | 2 | S Johnson | 77 | 6 | |||||||||||||||||||
| M Janvier | 6 | 3 | 3 | 7 | A Walton | 3 | 3 | ||||||||||||||||||||
| A McHugh | 62 | 4 | Alt | U Blanch | 6 | 6 | |||||||||||||||||||||
| Alt | U Blanch | 77 | 6 | Alt | U Blanch | 3 | 4 | ||||||||||||||||||||
| E Spizzirri | 77 | 6 | 2 | S Johnson | 6 | 6 | |||||||||||||||||||||
| PR | C Harrison | 64 | 4 | E Spizzirri | 3 | 5 | |||||||||||||||||||||
| B Harris | 65 | 4 | 2 | S Johnson | 6 | 7 | |||||||||||||||||||||
| 2 | S Johnson | 77 | 6 | ||||||||||||||||||||||||
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This was the first edition of the tournament.
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