# 2024 Seoul Open Challenger – Singles

Bu Yunchaokete was the defending champion but chose not to defend his title.
Nikoloz Basilashvili won the title after defeating Taro Daniel 7–5, 6–4 in the final.

## Seeds

* Taro Daniel (final)
* Mackenzie McDonald (second round)
* Nicolas Moreno de Alboran (quarterfinals)
* Tseng Chun-hsin (first round)
* Hong Seong-chan (withdrew)
* Coleman Wong (second round)
* Térence Atmane (first round)
* Sho Shimabukuro (second round)

## 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 | Final | Final | Final | Final |
| 1 | Taro Daniel | 6 | 6 | | | | |
| | Jurij Rodionov | 3 | 2 | | | | |
| | Jurij Rodionov | 3 | 2 | 1 | Taro Daniel | 5 | 4 |
| | | | | | Nikoloz Basilashvili | 7 | 6 |
| | Antoine Escoffier | | | | Nikoloz Basilashvili | 7 | 6 |
| | Nikoloz Basilashvili | w/o | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | T Daniel | 7$^7$ | 4 | 7 | | | | | | | | | | | | | | |
| | B Paire | 6$^4$ | 6 | 5 | 1 | T Daniel | 6 | 6 | | | | | | | | | | |
| | D Svrčina | 6 | 6 | | | D Svrčina | 1 | 4 | | | | | | | | | | |
| WC | Shin San-hui | 3 | 0 | | | | | | | 1 | T Daniel | 6 | 6 | | | | | |
| Q | K Samrej | 6 | 6 | | | | | | | Q | K Samrej | 4 | 4 | | | | | |
| Q | J Ocleppo | 1 | 4 | | Q | K Samrej | 6$^1$ | 7 | 6 | | | | | | | | | |
| | Y Bai | 3 | 6 | 3 | 6 | C Wong | 7$^7$ | 5 | 4 | | | | | | | | | |
| 6 | C Wong | 6 | 3 | 6 | | | | | | | | | | | 1 | T Daniel | 6 | 6 |
| 3 | N Moreno de Alboran | 7$^7$ | 6$^5$ | 6 | | | | | | | | | | | | J Rodionov | 3 | 2 |
| | E Ymer | 6$^4$ | 7$^7$ | 4 | 3 | N Moreno de Alboran | 7$^9$ | 6 | | | | | | | | | | |
| | A Blockx | 6 | 7 | | | A Blockx | 6$^7$ | 1 | | | | | | | | | | |
| | Y-h Hsu | 2 | 5 | | | | | | | 3 | N Moreno de Alboran | 7$^7$ | 3 | 4 | | | | |
| Q | K Uchida | 4 | 6$^9$ | | | | | | | | J Rodionov | 6$^3$ | 6 | 6 | | | | |
| | J Rodionov | 6 | 7$^{11}$ | | | J Rodionov | 7$^7$ | 7$^7$ | | | | | | | | | | |
| | M Janvier | 2 | 4 | | 8 | S Shimabukuro | 6$^3$ | 6$^2$ | | | | | | | | | | |
| 8 | S Shimabukuro | 6 | 6 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals |
| Q | Y Zhou | 4 | 6 | 1 | | | | | | | | | | | |
| | A Escoffier | 6 | 3 | 6 | | A Escoffier | 6 | 7$^7$ | | | | | | | |
| | R Ramanathan | 4 | 4 | | Q | K Uesugi | 4 | 6$^1$ | | | | | | | |
| Q | K Uesugi | 6 | 6 | | | | | | | | A Escoffier | 6 | 6 | | |
| WC | Y-s Chung | 5 | 3 | | | | | | | | L Tu | 0 | 4 | | |
| WC | H Chung | 7 | 6 | | WC | H Chung | 6 | 3 | 1 | | | | | | |
| | L Tu | 6 | 6 | | | L Tu | 4 | 6 | 6 | | | | | | |
| 4 | C-h Tseng | 2 | 1 | | | | | | | | | | | A Escoffier | |
| 7 | T Atmane | 3 | 6 | 4 | | | | | | | | | | N Basilashvili | w/o |
| | N Basilashvili | 6 | 3 | 6 | | N Basilashvili | 6 | 6$^3$ | 6 | | | | | | |
| | R Noguchi | 4 | 4 | | | T-l Wu | 2 | 7$^7$ | 4 | | | | | | |
| | T-l Wu | 6 | 6 | | | | | | | | N Basilashvili | 6 | 6 | | |
| | G den Ouden | 7 | 4 | 4 | | | | | | Q | H Moriya | 3 | 4 | | |
| Q | H Moriya | 5 | 6 | 6 | Q | H Moriya | 6 | 0 | 6 | | | | | | |
| LL | J Cui | 3 | 0 | | 2 | M McDonald | 3 | 6 | 4 | | | | | | |
| 2 | M McDonald | 6 | 6 | | | | | | | | | | | | |