Michael Chang defeated Jan Siemerink 6-2 6-0 6-3 in the Roland Garros round of 128 on clay. The result followed the form book — Michael Chang came in defending last year's quarter-final. Michael Chang extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-03-08 | Indian Wells Masters | R64 | hard | Jan Siemerink | 7-5 6-3 |
| 1992-04-13 | Hong Kong | QF | hard | Michael Chang | 6-3 6-2 |
Averages over each player's completed matches in the selected window (200 vs 199). 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