Michihisa Onoda defeated Oh Hee Kwon 6-4 6-3 in the Japan F2 round of 16 on carpet. The upset overturned the form book — Oh Hee Kwon came in leading the head-to-head 2–1. That levelled the head-to-head at 2–2.
Onoda M. took it in straight sets.
Michihisa Onoda beat Oh Hee Kwon 6-4 6-3. Umpiry, "Michihisa Onoda vs Oh Hee Kwon — Japan F2 Round of 16", https://umpiry.com/match/2004-04-19/kwon-vs-onoda-japan-f2-r16?utm_source=cite (as of 19 April 2004).