- Born
- 1962-07-12 in Seochun, South Korea, South Korea
- Hand
- Right
- Backhand
- nan
- Height
- 185 cm
- Weight
- 82 kg
- Coach
- nan
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Jin-Sun Yoo
Jin-Sun YooJin-Sun Yoo has a competitive career record of 10–9 across 19 matches (52.6%). The record shows a player capable of competing at Tour level, though there is clear room to push the win rate higher.
By format — best-of-five: 6–3 (66.7%); best-of-three: 4–6 (40.0%). Significantly better in five-set matches — a strong physical profile that tends to tell as matches and tournaments progress.
Best season: 1986 — 4–1 (80.0%) from 5 matches. The best single-season display to date — a useful reference point as the career continues to develop.
| Date | Tournament | Srf | Rd | Wrk | Winner | Lrk | Loser | Score |
|---|---|---|---|---|---|---|---|---|
| 1989-05-05 | Davis Cup G1 SF: IND vs KOR | Grass | RR | 304 | 247 | 6-3 3-6 7-6(1) 6-4 | ||
| 1989-05-05 | Davis Cup G1 SF: IND vs KOR | Grass | RR | 304 | 138 | 6-3 6-3 | ||
| 1989-04-10 | Seoul | Hard | R16 | 36 | 330 | 7-6 7-5 | ||
| 1989-04-10 | Seoul | Hard | R32 | 330 | 164 | 2-6 6-1 7-6 | ||
| 1988-09-19 | Seoul Olympics | Hard | R64 | 27 | 320 | 6-2 6-4 7-5 | ||
| 1988-07-22 | Davis Cup G1 F: INA vs KOR | Clay | RR | 309 | - | 6-3 6-4 6-4 | ||
| 1988-04-18 | Seoul | Hard | R16 | 39 | 330 | 3-6 6-3 6-2 | ||
| 1988-04-18 | Seoul | Hard | R32 | 330 | 195 | 6-4 7-6 | ||
| 1987-07-24 | Davis Cup WG PO: KOR vs ITA | Hard | RR | 202 | 315 | 2-6 6-4 6-4 7-9 12-10 | ||
| 1987-04-20 | Seoul | Hard | R32 | 447 | 299 | 6-2 6-4 |
