Albert Portas defeated Juan Antonio Marin 6-2 6-4 in the San Marino semi-final on clay. The upset overturned the form book — Juan Antonio Marin came in leading the head-to-head 3–2, defending last year's round of 32, but Albert Portas had been the form player, winning 3 of their last 6 on clay. Albert Portas narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-01 | Estoril | R32 | clay | Albert Portas | 6-3 6-4 |
| 2001-07-23 | Sopot | QF | clay | Albert Portas | 6-3 6-1 |
| 2001-04-30 | Mallorca | R32 | grass | Juan Antonio Marin | 6-1 6-2 |
| 2000-04-24 | Barcelona | R64 | clay | Juan Antonio Marin | 7-6(7) 6-3 |
| 1999-10-04 | Palermo | R32 | clay | Juan Antonio Marin | 7-5 6-1 |
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 (200 vs 122). ATP, WTA & Challenger.