WJ
Woong Sun Jun
Last ranked
#1482
Career high
#230
Overall record
10-12
Record by surface
Last 20 matches
| Date | Tournament | Round | Surface | Result | Opponent | Score |
|---|---|---|---|---|---|---|
| 2008-09-19 | Davis Cup WG PO: NED vs KOR | Round Robin | Clay | L | Thiemo De Bakker | 6-2 6-1 6-3 |
| 2008-07-28 | Cincinnati Masters | Round of 32 | Hard | L | Philipp Kohlschreiber | 6-2 6-2 |
| 2008-07-14 | Indianapolis | Round of 16 | Hard | L | James Blake | 6-3 7-5 |
| 2008-07-14 | Indianapolis | Round of 32 | Hard | W | Chris Guccione | 6-4 7-6(4) |
| 2008-07-07 | Newport | Round of 32 | Grass | L | Donald Young | 6-3 2-6 6-4 |
| 2008-05-18 | Casablanca | Round of 32 | Clay | L | Pablo Cuevas | 6-4 6-1 |
| 2008-02-08 | Davis Cup WG R1: GER vs KOR | Round Robin | Clay | W | Michael Berrer | 6-1 3-6 6-4 |
| 2007-10-01 | Tokyo | Round of 64 | Hard | L | Marin Cilic | 6-2 6-2 |
| 2007-09-21 | Davis Cup WG PO: SVK vs KOR | Round Robin | Clay | L | Lukas Lacko | 6-3 6-2 7-6(2) |
| 2007-09-10 | Beijing | Round of 32 | Hard | L | Rik De Voest | 6-4 7-6(4) |
| 2007-04-06 | Davis Cup G1 R2: KOR vs UZB | Round Robin | Hard | W | Sarvar Ikramov | 7-5 6-4 |
| 2007-02-09 | Davis Cup G1 R1: KOR vs KAZ | Round Robin | Carpet | W | Alexey Kedryuk | 6-4 6-1 6-4 |
| 2007-01-08 | Auckland | Round of 32 | Hard | L | Dominik Hrbaty | 6-4 7-5 |
| 2006-09-22 | Davis Cup WG PO: ROU vs KOR | Round Robin | Clay | L | Florin Mergea | 6-2 2-6 6-3 |
| 2006-09-22 | Davis Cup WG PO: ROU vs KOR | Round Robin | Clay | L | Andrei Pavel | 6-0 6-4 6-3 |
| 2006-04-07 | Davis Cup G1 R2: TPE vs KOR | Round Robin | Hard | W | Chu Huan Yi | 6-7(4) 7-6(2) 7-5 |
| 2006-04-07 | Davis Cup G1 R2: TPE vs KOR | Round Robin | Hard | L | Jimmy Wang | 3-6 7-5 6-2 6-2 |
| 2006-02-10 | Davis Cup G1 R1: KOR vs IND | Round Robin | Hard | W | Prakash Amritraj | 6-3 3-6 7-5 |
| 2005-07-15 | Davis Cup G2 R2: KOR vs POC | Round Robin | Hard | W | West Nott | 7-5 6-4 6-1 |
| 2005-03-04 | Davis Cup G2 R1: PHI vs KOR | Round Robin | Clay | W | Patrick Tierro | 6-3 6-3 6-3 |
Most-played opponents
| Opponent | Wins | Losses | Total | H2H |
|---|---|---|---|---|
| Patrick Chucri | 1 | 0 | 1 | view H2H |
| Johnny Arcilla | 1 | 0 | 1 | view H2H |
| Patrick Tierro | 1 | 0 | 1 | view H2H |
| West Nott | 1 | 0 | 1 | view H2H |
| Prakash Amritraj | 1 | 0 | 1 | view H2H |
| Chu Huan Yi | 1 | 0 | 1 | view H2H |
| Alexey Kedryuk | 1 | 0 | 1 | view H2H |
| Sarvar Ikramov | 1 | 0 | 1 | view H2H |
| Chris Guccione | 1 | 0 | 1 | view H2H |
| Michael Berrer | 1 | 0 | 1 | view H2H |