# 2010 Busan Open Challenger Tennis – Singles

Danai Udomchoke was the defending champion, but he chose not to compete this year. Lim Yong-Kyu won in the final 6–1, 6–4 against Lu Yen-hsun.

## Seeds

* Rainer Schüttler (first round)
* Lu Yen-hsun (final)
* Go Soeda (semifinals)
* Alexander Peya (second round)
* Brendan Evans (first round)
* Leonardo Tavares (withdrew)
* Simon Stadler (first round)
* Tatsuma Ito (quarterfinals)

## 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 |
| WC | Lim Yong-Kyu | 6 | 6 | | | | |
| WC | Jun Woong-Sun | 3 | 4 | | | | |
| WC | Jun Woong-Sun | 3 | 4 | WC | Lim Yong-Kyu | 6 | 6 |
| | | | | 2 | Lu Yen-hsun | 1 | 4 |
| 3 | Go Soeda | 4 | 0 | 2 | Lu Yen-hsun | 1 | 4 |
| 2 | Lu Yen-hsun | 6 | 6 | | | | |

### 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 | R Schüttler | 4 | 2 | | | | | | | | | | | | | | | |
| | Y-J Kim | 6 | 6 | | | Y-J Kim | 2 | 4 | | | | | | | | | | |
| Q | T Matsui | 3 | 6$^7$ | | | P-L Duclos | 6 | 6 | | | | | | | | | | |
| | P-L Duclos | 6 | 7 | | | | | | | | P-L Duclos | 4 | 2 | | | | | |
| | N Okun | 1 | 2 | | | | | | | WC | Y-K Lim | 6 | 6 | | | | | |
| WC | Y-K Lim | 6 | 6 | | WC | Y-K Lim | 6 | 6 | | | | | | | | | | |
| | T Suzuki | 6 | 6 | | | T Suzuki | 1 | 3 | | | | | | | | | | |
| 7 | S Stadler | 4 | 4 | | | | | | | | | | | | WC | Y-K Lim | 6 | 6 |
| 4 | A Peya | 3 | 6 | 6 | | | | | | | | | | | WC | W-S Jun | 3 | 4 |
| Q | J-S An | 6 | 1 | 4 | 4 | A Peya | 6 | 1 | 1 | | | | | | | | | |
| | Y Ito | 6 | 4 | 3 | WC | W-S Jun | 4 | 6 | 6 | | | | | | | | | |
| WC | W-S Jun | 2 | 6 | 6 | | | | | | WC | W-S Jun | 3 | 6 | 7 | | | | |
| | V Vardhan | 6 | 6 | | | | | | | | R Junaid | 6 | 2 | 6$^5$ | | | | |
| WC | JS Nam | 3 | 2 | | | V Vardhan | 3 | 6$^4$ | | | | | | | | | | |
| | R Junaid | 6 | 6 | | | R Junaid | 6 | 7 | | | | | | | | | | |
| Q | S Rieschick | 4 | 4 | | | | | | | | | | | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | T Ito | 6 | 2 | 6 | | | | | | | | | | | | | | |
| | M Raonic | 4 | 6 | 4 | 8 | T Ito | 7 | 3 | 6 | | | | | | | | | |
| | S Groth | 4 | 4 | | WC | S-Y Jeong | 6$^5$ | 6 | 3 | | | | | | | | | |
| WC | S-Y Jeong | 6 | 6 | | | | | | | 8 | T Ito | 2 | 6$^8$ | | | | | |
| | S Kadir | 6$^5$ | 1 | | | | | | | 3 | G Soeda | 6 | 7 | | | | | |
| Q | T Chen | 7 | 6 | | Q | T Chen | 5 | 5 | | | | | | | | | | |
| | T-H Yang | 2 | 0 | | 3 | G Soeda | 7 | 7 | | | | | | | | | | |
| 3 | G Soeda | 6 | 6 | | | | | | | | | | | | 3 | G Soeda | 4 | 0 |
| 5 | B Evans | 4 | 3 | | | | | | | | | | | | 2 | Y-h Lu | 6 | 6 |
| LL | H Kondo | 6 | 6 | | LL | H Kondo | 3 | 6 | 6 | | | | | | | | | |
| | A Juška | 6 | 6 | | | A Juška | 6 | 4 | 4 | | | | | | | | | |
| | I Klec | 4 | 4 | | | | | | | LL | H Kondo | 1 | 6 | 2 | | | | |
| | A Sitak | 3 | 6 | 6$^8$ | | | | | | 2 | Y-h Lu | 6 | 2 | 6 | | | | |
| | A Martin | 6 | 3 | 7 | | A Martin | 1 | 3 | | | | | | | | | | |
| | A Feeney | 6 | 2 | 6$^4$ | 2 | Y-h Lu | 6 | 6 | | | | | | | | | | |
| 2 | Y-h Lu | 3 | 6 | 7 | | | | | | | | | | | | | | |