# 2024 Nonthaburi Challenger IV – Singles

Matteo Gigante was the defending champion but chose not to defend his title.
Wu Tung-lin won the title after defeating Mackenzie McDonald 6–3, 7–6$^{(7–4)}$ in the final.

## Seeds

* Arthur Cazaux (quarterfinals)
* Adam Walton (quarterfinals)
* Gabriel Diallo (quarterfinals)
* Maximilian Marterer (first round)
* Aslan Karatsev (second round)
* Marco Trungelliti (first round)
* Mitchell Krueger (second round)
* Coleman Wong (semifinals)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | James McCabe | 1 | 6 | 6$^2$ | | | | |
| Q | Wu Tung-lin | 6 | 3 | 7$^7$ | | | | |
| Q | Wu Tung-lin | 6 | 3 | 7$^7$ | Q | Wu Tung-lin | 6 | 7$^7$ |
| | | | | | | Mackenzie McDonald | 3 | 6$^4$ |
| | Mackenzie McDonald | 6 | 6 | | | Mackenzie McDonald | 3 | 6$^4$ |
| 8 | Coleman Wong | 3 | 4 | | | | | |

### Top half

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | A Cazaux | 6 | 6 | | | | | | | | | | | | | | |
| | Vadym Ursu | 1 | 2 | 1 | A Cazaux | 6 | 6 | | | | | | | | | | |
| WC | W Trongcharoenchaikul | 5 | 2 | Q | I Simakin | 2 | 4 | | | | | | | | | | |
| Q | I Simakin | 7 | 6 | | | | | 1 | A Cazaux | 6$^4$ | 6 | 3 | | | | | |
| | A Moro Cañas | 4 | 6$^2$ | | | | | | J McCabe | 7$^7$ | 4 | 6 | | | | | |
| | J McCabe | 6 | 7$^7$ | | J McCabe | 6 | 6 | | | | | | | | | | |
| | I Marchenko | 1 | 4 | 5 | A Karatsev | 1 | 4 | | | | | | | | | | |
| 5 | A Karatsev | 6 | 6 | | | | | | | | | | | J McCabe | 1 | 6 | 6$^2$ |
| 4 | M Marterer | 6$^3$ | 5 | | | | | | | | | | Q | T-l Wu | 6 | 3 | 7$^7$ |
| | R Noguchi | 7$^7$ | 7 | | R Noguchi | 4 | 5 | | | | | | | | | | |
| | D Svrčina | 6 | 6 | | D Svrčina | 6 | 7 | | | | | | | | | | |
| Q | Mitsuki Wei Kang Leong | 1 | 1 | | | | | | D Svrčina | 1 | 1 | | | | | | |
| | D Yevseyev | 6 | 6 | | | | | Q | T-l Wu | 6 | 6 | | | | | | |
| | E Gerasimov | 1 | 2 | | D Yevseyev | 4 | 1$^r$ | | | | | | | | | | |
| Q | T-l Wu | 6 | 6 | Q | T-l Wu | 6 | 4 | | | | | | | | | | |
| 6 | M Trungelliti | 1 | 3 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | M Krueger | 6 | 6 | | | | | | | | | | | | | |
| Q | Yurii Dzhavakian | 2 | 1 | | 7 | M Krueger | 3 | 2 | | | | | | | | |
| | M McDonald | 6 | 6 | | | M McDonald | 6 | 6 | | | | | | | | |
| WC | Thanapet Chanta | 3 | 1 | | | | | | | M McDonald | 7$^8$ | 6 | | | | |
| | B Zhukayev | 6$^5$ | 4 | | | | | | 3 | G Diallo | 6$^6$ | 3 | | | | |
| | G Oliveira | 7$^7$ | 6 | | | G Oliveira | 3 | 0$^r$ | | | | | | | | |
| Q | J-s Nam | 6$^9$ | 0 | | 3 | G Diallo | 6 | 2 | | | | | | | | |
| 3 | G Diallo | 7$^{11}$ | 6 | | | | | | | | | | | M McDonald | 6 | 6 |
| 8 | C Wong | 6 | 6 | | | | | | | | | | 8 | C Wong | 3 | 4 |
| WC | K Samrej | 4 | 3 | | 8 | C Wong | 6 | 7 | | | | | | | | |
| | K Sultanov | 6 | 2 | 2 | | D Evans | 4 | 5 | | | | | | | | |
| | D Evans | 4 | 6 | 6 | | | | | 8 | C Wong | 6 | 6 | | | | |
| | A Bolt | 7$^9$ | 7 | | | | | | 2 | A Walton | 4 | 4 | | | | |
| Q | Y Shimizu | 6$^7$ | 5 | | | A Bolt | 6$^4$ | 3 | | | | | | | | |
| | Y-h Hsu | 3 | 3 | | 2 | A Walton | 7$^7$ | 6 | | | | | | | | |
| 2 | A Walton | 6 | 6 | | | | | | | | | | | | | |