Guillermo Coria defeated Nicolas Kiefer 6-0 6-3 in the Monte Carlo Masters round of 32 on clay. The result followed the form book — Guillermo Coria came in leading the head-to-head 5–1, defending last year's final. Guillermo Coria extended the head-to-head to 6–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-04-17 | Monte Carlo Masters | R16 | clay | Guillermo Coria | 6-7(5) 6-4 6-3 |
| 2005-05-02 | Rome Masters | R32 | clay | Guillermo Coria | 6-1 6-1 |
| 2004-03-22 | Miami Masters | QF | hard | Guillermo Coria | 6-3 6-3 |
| 2004-01-12 | Auckland | R32 | hard | Guillermo Coria | 7-6(4) 6-3 |
| 2003-05-26 | Roland Garros | R64 | clay | Guillermo Coria | 6-3 5-7 6-3 6-1 |
| 2000-08-14 | Washington | R32 | hard | Nicolas Kiefer | 4-6 6-3 6-2 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (160 vs 200). ATP, WTA & Challenger.