Mi Ra Jeon defeated Young Ja Choi 2-6 6-3 6-1 in the Gifu 50K round of 16 on carpet. The upset overturned the form book — Young Ja Choi came in leading the head-to-head 3–2. Mi Ra Jeon narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-04-29 | Gifu 50K | R16 | carpet | Mi Ra Jeon | 6-1 6-0 |
| 2001-04-23 | Seoul 50K | R16 | hard | Young Ja Choi | 6-4 6-0 |
| 2000-08-07 | Nonthabuiri 10K | F | hard | Mi Ra Jeon | 6-1 6-3 |
| 1999-11-22 | Kofu 10K | R16 | carpet | Young Ja Choi | 6-3 7-5 |
| 1998-10-12 | Seoul II 25K | R32 | hard | Young Ja Choi | 6-0 6-3 |