Arata Ito defeated Chi Wan Kim 6-2 6-3 in the Japan Masters 2 round of 32 on hard. The upset overturned the form book — Chi Wan Kim came in leading the head-to-head 2–0. Arata Ito claimed a first win over Chi Wan Kim in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-08-05 | Hong Kong Ch Taipei Masters 1 | R32 | hard | Chi Wan Kim | 6-2 6-1 |
| 1991-05-20 | Korea Masters 4 | R32 | clay | Chi Wan Kim | 6-2 6-3 |