| RR | L | Thiemo de Bakker | 6-2 6-1 6-3 | H2H |
🇰🇷 KOR · Right-handed · 191 cm · b. 1986-06-14
Woong-Sun Jun
Active 2004–2008 · best rank seen: 236
10–12
0
0
0
0
115
Career summary
Woong-Sun Jun of South Korea is a former right-handed player who competed on the ATP tour from 2004 to 2008. He finished with a career match record of 10–12 (45.5%). His best three-year stretch came in 2007–2009, and he reached a peak Elo rating of 1746.
Hard
6–6 (50.0%)
Clay
3–5 (37.5%)
Grass
0–1 (0.0%)
Carpet
1–0 (100.0%)
Elo over time
Pre-match Elo, sampled across the career. Peak: 1746.
Match results
| R32 | L | Philipp Kohlschreiber | 6-2 6-2 | H2H |
| R16 | L | James Blake | 6-3 7-5 | H2H |
| R32 | W | Chris Guccione | 6-4 7-6(4) | H2H |
| R32 | L | Donald Young | 6-3 2-6 6-4 | H2H |
| R32 | L | Pablo Cuevas | 6-4 6-1 | H2H |
| RR | W | Michael Berrer | 6-1 3-6 6-4 | H2H |
Methodology
Titles include Slams, Masters, Tour Finals, 500s, 250s, legacy tour events and Olympic gold; Davis Cup is excluded, and walkovers are excluded from all win–loss records. GOAT points value every round reached, scaled per tier (Slam title 2000 anchor; ranking includes Slam champions only, but every player's points are shown here). Elo is a chess-style rating over the full match history (K = 250/(n+5)^0.4); the timeline shows pre-match ratings, sampled. The gold band on the season chart marks the best three-consecutive-year window.