Gouichi Motomura defeated Tetsuya Chaen 7-6 7-5 in the Japan Masters 4 round of 16 on hard. The result followed the form book — Gouichi Motomura came in leading the head-to-head 7–1. Gouichi Motomura extended the head-to-head to 8–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-09-15 | Japan F9 | R32 | carpet | Gouichi Motomura | 6-1 6-0 |
| 2007-04-09 | Japan F4 | QF | hard | Gouichi Motomura | 3-6 6-2 6-2 |
| 2006-04-17 | Japan F2 | QF | carpet | Tetsuya Chaen | 2-6 6-3 6-4 |
| 2001-05-14 | Japan F4 | QF | hard | Gouichi Motomura | 6-4 7-6(5) |
| 1998-03-16 | Japan F1 | QF | clay | Gouichi Motomura | 6-0 7-5 |
| 1996-11-04 | Japan 2 Masters 4 | SF | hard | Gouichi Motomura | 7-5 6-0 |
| 1996-06-09 | Japan 1 Masters 2 | QF | hard | Gouichi Motomura | 6-2 6-4 |
| 1993-08-09 | Chinese Taipei Masters 3 | R16 | hard | Gouichi Motomura | 6-2 6-4 |
Averages over each player's completed matches in the selected window (30 vs 2). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About