Satoshi Iwabuchi defeated Tetsuya Chaen 6-4 6-1 in the Japan F5 round of 16 on hard.
Iwabuchi S. took it in straight sets.
Satoshi Iwabuchi beat Tetsuya Chaen 6-4 6-1. Umpiry, "Satoshi Iwabuchi vs Tetsuya Chaen — Japan F5 Round of 16", https://umpiry.com/match/2001-05-21/chaen-vs-iwabuchi-japan-f5-r16?utm_source=cite (as of 21 May 2001).