Yong-Il Yoon
W-L: 1-4 (20.00%)
Matches in 1998
| Date ▼ | Tourney | Surface | Round | Wrk | Winner | Lrk | Loser | Score | H2H | BoF | Min | WA | WDF | W1stIn | W1st% | W2nd% | BPSvd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1998-08-31 | US Open | Hard | R128 | 201 |  Jonathan Stark (WC) | 394 | Yong-Il Yoon (Q) | 6-2 6-4 6-4 | H2H | 5 | - | 16 | 1 | 66.3% | 87.7% | 79.3% | 1/1 |
| 1998-07-17 | Davis Cup G1 PO: KOR vs CHN | Hard | RR | 326 | Yong-Il Yoon | - |  Jing Zhu Yang | 6-3 6-2 6-0 | H2H | 5 | - | - | - | - | - | - | - |
| 1998-07-17 | Davis Cup G1 PO: KOR vs CHN | Hard | RR | 636 | Yue-Wei Wang | 326 | Yong-Il Yoon | 2-6 6-3 7-6(1) | H2H | 3 | - | - | - | - | - | - | - |
| 1998-04-03 | Davis Cup G1 SF: KOR vs UZB | Clay | RR | 267 |  Vadim Kutsenko | 253 | Yong-Il Yoon | 4-6 6-4 6-4 6-2 | H2H | 5 | - | - | - | - | - | - | - |
| 1998-04-03 | Davis Cup G1 SF: KOR vs UZB | Clay | RR | 159 |  Oleg Ogorodov | 253 | Yong-Il Yoon | 6-4 6-7(4) 6-4 7-6(5) | H2H | 5 | - | - | - | - | - | - | - |
Matches — 1998