Tetsuya Chaen defeated Paul Warkentin 6-2 7-6 in the Japan F4 round of 16 on hard.
Chaen T. took it in straight sets.
Tetsuya Chaen beat Paul Warkentin 6-2 7-6(3). Umpiry, "Tetsuya Chaen vs Paul Warkentin — Japan F4 Round of 16", https://umpiry.com/match/2007-04-09/chaen-vs-warkentin-japan-f4-r16?utm_source=cite (as of 9 April 2007).