Matches
W-L: 4-6 (40.00%)
| Date | Tournament | Surface | Round | Wrk | Winner | Lrk | Loser | Score |
|---|---|---|---|---|---|---|---|---|
| 2002-02-08 | Davis Cup G1 QF: KOR vs JPN | Carpet | RR | 241 | 284 | 3-6 6-2 6-2 6-3 | ||
| 2002-02-08 | Davis Cup G1 QF: KOR vs JPN | Carpet | RR | 228 | 284 | 7-5 6-4 6-3 | ||
| 2001-10-01 | Tokyo | Hard | R64 | 203 | 185 | 6-3 6-1 | ||
| 2001-09-17 | Shanghai | Hard | R32 | 194 | - | 6-4 6-4 | ||
| 2001-09-17 | Shanghai | Hard | R16 | 144 | 194 | 7-6(3) 6-7(6) 6-2 | ||
| 2001-06-25 | Wimbledon | Grass | R128 | 7 | 160 | 6-4 6-2 6-4 | ||
| 2001-04-06 | Davis Cup G1 PO: KOR vs INA | Hard | RR | 151 | 291 | 6-3 7-6(3) 6-2 | ||
| 2000-10-09 | Tokyo | Hard | R16 | 14 | 205 | 7-6(7) 6-4 | ||
| 2000-10-09 | Tokyo | Hard | R64 | 205 | 116 | 6-4 1-6 6-2 | ||
| 2000-10-09 | Tokyo | Hard | R32 | 205 | 60 | 4-6 7-5 6-1 |
Yong-Il Yoon
W-L: 4-6 (40.00%)