Match log updated: 2026-05-28 18:14 UTC
Woong-Sun Jun — ATP Match Log
Main draw matches: 8 | W: 1 | L: 7 | Win %: 12.5%
59 qualifying matches shown below; qualifying is excluded from main-draw summaries and leaderboards.
| Date ↑ | Tournament | Category | Round | Surface | Opponent | Score | Result | H2H | Match |
|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2007 | Chennai | ATP 250 | Q1 | Hard | Pablo Andujar | 4-6 6-2 6-2 | W | H2H | Match data |
| Jan 1, 2007 | Chennai | ATP 250 | Q2 | Hard | Marin Cilic | 2-6 6-1 4-6 | L | H2H | Match data |
| Jan 8, 2007 | Auckland | ATP 250 | Q1 | Hard | Tomas Cakl | 4-6 6-2 7-5 | W | H2H | Match data |
| Jan 8, 2007 | Auckland | ATP 250 | Q2 | Hard | Martin Vassallo Arguello | 4-6 6-2 7-6(1) | W | H2H | Match data |
| Jan 9, 2007* | Auckland | ATP 250 | Q3 | Hard | Luka Gregorc | 6-3 6-3 | W | H2H | Match data |
| Jan 11, 2007* | Auckland | ATP 250 | R32 | Hard | Dominik Hrbaty | 4-6 5-7 | L | H2H | Match data |
| Jul 9, 2007 | Gstaad | ATP 250 | Q1 | Clay | Maxime Bonami | 6-1 7-5 | W | H2H | Match data |
| Jul 9, 2007 | Gstaad | ATP 250 | Q2 | Clay | Benjamin Balleret | 6-3 6-2 | W | H2H | Match data |
| Jul 10, 2007* | Gstaad | ATP 250 | Q3 | Clay | Radek Stepanek | 0-6 4-6 | L | H2H | Match data |
| Sep 10, 2007 | Beijing | ATP 500 | Q1 | Hard | Yu Chang | 6-4 6-1 | W | H2H | Match data |
| Sep 10, 2007 | Beijing | ATP 500 | Q2 | Hard | Wan Gao | 7-5 6-3 | W | H2H | Match data |
| Sep 11, 2007* | Beijing | ATP 500 | Q3 | Hard | Ti Chen | 6-1 6-3 | W | H2H | Match data |
| Sep 13, 2007* | Beijing | ATP 500 | R32 | Hard | Rik De Voest | 4-6 6-7(4) | L | H2H | Match data |
| Oct 1, 2007 | Tokyo | ATP 500 | Q1 | Hard | Hiroki Kondo | 6-3 6-7(5) 6-1 | W | H2H | Match data |
| Oct 1, 2007 | Tokyo | ATP 500 | Q2 | Hard | Gouichi Motomura | 6-7(5) 6-1 6-4 | W | H2H | Match data |
| Oct 3, 2007* | Tokyo | ATP 500 | R64 | Hard | Marin Cilic | 2-6 2-6 | L | H2H | Match data |
| Jan 7, 2008 | Auckland | ATP 250 | Q1 | Hard | Mikal Statham | 6-2 6-3 | W | H2H | Match data |
| Jan 7, 2008 | Auckland | ATP 250 | Q2 | Hard | Jamie Baker | 6-2 3-6 2-6 | L | H2H | Match data |
| May 18, 2008 | Casablanca | ATP 250 | Q2 | Clay | Andres Schneiter | 6-7(6) 6-2 6-2 | W | H2H | Match data |
| May 19, 2008* | Casablanca | ATP 250 | Q3 | Clay | Marc Fornell Mestres | 6-3 4-6 6-3 | W | — | Match data |
| May 21, 2008* | Casablanca | ATP 250 | R32 | Clay | Pablo Cuevas | 4-6 1-6 | L | H2H | Match data |
| Jun 9, 2008 | Queen's Club | ATP 500 | Q1 | Grass | Prakash Amritraj | 6-3 6-2 | W | H2H | Match data |
| Jun 9, 2008 | Queen's Club | ATP 500 | Q2 | Grass | Brendan Evans | 6-4 6-2 | W | H2H | Match data |
| Jun 10, 2008* | Queen's Club | ATP 500 | Q3 | Grass | Richard Bloomfield | 6-4 5-7 6-7(8) | L | H2H | Match data |
| Jun 23, 2008 | Wimbledon | Grand Slam | Q1 | Grass | Lukas Dlouhy | 4-6 6-7(5) | L | H2H | Match data |
| Jul 7, 2008 | Newport | ATP 250 | Q1 | Grass | Sanchai Ratiwatana | 6-3 6-4 | W | H2H | Match data |
| Jul 7, 2008 | Newport | ATP 250 | Q2 | Grass | Nikita Kryvonos | 6-4 6-3 | W | H2H | Match data |
| Jul 10, 2008* | Newport | ATP 250 | R32 | Grass | Donald Young | 3-6 6-2 4-6 | L | H2H | Match data |
| Jul 14, 2008 | Indianapolis | ATP 250 | Q1 | Hard | Scott Lipsky | 6-4 7-5 | W | H2H | Match data |
| Jul 14, 2008 | Indianapolis | ATP 250 | Q2 | Hard | Sonchat Ratiwatana | 6-4 6-4 | W | H2H | Match data |
| Jul 14, 2008 | Indianapolis | ATP 250 | R32 | Hard | Chris Guccione | 6-4 7-6(4) | W | H2H | Match data |
| Jul 14, 2008 | Indianapolis | ATP 250 | R16 | Hard | James Blake | 3-6 5-7 | L | H2H | Match data |
| Jul 21, 2008 | Canada Masters | Masters 1000 | Q1 | Hard | Jesse Levine | 1-6 7-6(2) 3-5 (ret.) | L | H2H | Match data |
| Jul 28, 2008 | Cincinnati Masters | Masters 1000 | Q1 | Hard | Denes Lukacs | 7-6(4) 6-1 | W | H2H | Match data |
| Jul 28, 2008 | Cincinnati Masters | Masters 1000 | Q2 | Hard | Chris Guccione | 4-6 3-6 | L | H2H | Match data |
| Jul 31, 2008* | Cincinnati Masters | Masters 1000 | R32 | Hard | Philipp Kohlschreiber | 2-6 2-6 | L | H2H | Match data |
| Aug 4, 2008 | Los Angeles | ATP 250 | Q1 | Hard | Rohan Bopanna | 6-4 6-2 | W | H2H | Match data |
| Aug 4, 2008 | Los Angeles | ATP 250 | Q2 | Hard | Amer Delic | 4-6 3-6 | L | H2H | Match data |
| Aug 10, 2008 | Washington | ATP 500 | Q1 | Hard | Alberto Francis | 6-3 6-3 | W | H2H | Match data |
| Aug 10, 2008 | Washington | ATP 500 | Q2 | Hard | Go Soeda | 6-7(3) 3-6 | L | H2H | Match data |
| Aug 25, 2008 | US Open | Grand Slam | Q1 | Hard | Joseph Sirianni | 6-3 6-4 | W | H2H | Match data |
| Aug 26, 2008* | US Open | Grand Slam | Q2 | Hard | Ryler DeHeart | 1-6 7-6(4) 5-7 | L | H2H | Match data |
| Sep 29, 2008 | Tokyo | ATP 500 | Q1 | Hard | Yuichi Ito | 6-4 6-7(4) 3-6 | L | H2H | Match data |
| Jan 12, 2009 | Sydney | ATP 250 | Q1 | Hard | Jeremy Chardy | 6-3 5-7 4-6 | L | H2H | Match data |
| Jan 19, 2009 | Australian Open | Grand Slam | Q1 | Hard | Mikhail Elgin | 6-2 6-7(5) 2-6 | L | H2H | Match data |
| Feb 9, 2009 | San Jose | ATP 250 | Q1 | Hard | Lester Cook | 7-5 6-3 | W | H2H | Match data |
| Feb 9, 2009 | San Jose | ATP 250 | Q2 | Hard | Ramon Delgado | 3-6 4-6 | L | H2H | Match data |
| Feb 23, 2009 | Delray Beach | ATP 250 | Q1 | Hard | Jesse Levine | 3-6 6-4 2-6 | L | H2H | Match data |
| May 3, 2009 | Munich | ATP 250 | Q1 | Clay | Tristan Samuel Weissborn | 6-4 3-6 6-3 | W | — | Match data |
| May 3, 2009 | Munich | ATP 250 | Q2 | Clay | Stephane Bohli | 2-6 4-6 | L | H2H | Match data |
| Jun 8, 2009 | Halle | ATP 500 | Q1 | Grass | Joseph Sirianni | 5-7 1-6 | L | H2H | Match data |
| Jun 14, 2009 | S Hertogenbosch | ATP 250 | Q1 | Grass | Sascha Kloer | 6-3 4-6 6-7(7) | L | H2H | Match data |
| Jul 13, 2009 | Stuttgart | ATP 250 | Q1 | Clay | Martin Sinner | 7-5 6-2 | W | H2H | Match data |
| Jul 13, 2009 | Stuttgart | ATP 250 | Q2 | Clay | Dominik Meffert | 2-6 3-6 | L | H2H | Match data |
| Sep 28, 2009 | Kuala Lumpur | ATP 250 | Q1 | Hard | Mohamed Nazim Khan | 7-5 6-2 | W | H2H | Match data |
| Sep 28, 2009 | Kuala Lumpur | ATP 250 | Q2 | Hard | Brendan Evans | 6-4 4-6 3-6 | L | H2H | Match data |
| Oct 11, 2009 | Shanghai Masters | Masters 1000 | Q1 | Hard | Michael Yani | 4-6 3-6 | L | H2H | Match data |
| Sep 27, 2010 | Kuala Lumpur | ATP 250 | Q2 | Hard | Mohamed Nazim Khan | 6-3 6-1 | W | H2H | Match data |
| Sep 28, 2010* | Kuala Lumpur | ATP 250 | Q3 | Hard | Igor Andreev | 2-6 2-6 | L | H2H | Match data |
| Apr 4, 2011 | Houston | ATP 250 | Q1 | Clay | Peter Polansky | 3-6 4-6 | L | H2H | Match data |
| Sep 24, 2012 | Kuala Lumpur | ATP 250 | Q2 | Hard | Treat Huey | 3-6 6-7(3) | L | H2H | Match data |
| Sep 23, 2013 | Bangkok | ATP 250 | Q1 | Hard | Nutthanon Kadchapanan | 7-6(4) 3-6 6-3 | W | H2H | Match data |
| Sep 23, 2013 | Bangkok | ATP 250 | Q2 | Hard | Santiago Giraldo | 4-6 2-6 | L | H2H | Match data |
| Oct 7, 2013 | Shanghai Masters | Masters 1000 | Q1 | Hard | Alejandro Falla | 5-7 6-3 2-6 | L | H2H | Match data |
| Sep 29, 2014 | Tokyo | ATP 500 | Q1 | Hard | Thanasi Kokkinakis | 0-6 2-6 | L | H2H | Match data |
| Sep 28, 2015 | Kuala Lumpur | ATP 250 | Q1 | Hard | Mischa Zverev | 4-6 2-6 | L | H2H | Match data |
| Oct 11, 2015 | Shanghai Masters | Masters 1000 | Q1 | Hard | Pierre-Hugues Herbert | 3-6 2-6 | L | H2H | Match data |