| 1‑Oct‑2007 | Metz | Hard | R32 | 119 | 74 | Lapentti d. Nicolas Massu [CHI] | 3-6 6-4 7-6(3) | | 0.98 | 9.2% | 0.8% | 60.0% | 69.4% | 47.9% | 6/10 | 3:08 |
| 25‑Jul‑2005 | Kitzbuhel | Clay | QF | 99 | 36 | (7)Nicolas Massu [CHI] d. (WC)Lapentti | 6-4 6-7(0) 6-2 | | 0.90 | 4.0% | 4.0% | 51.5% | 61.5% | 49.0% | 7/14 | 3:21 |
| 21‑Jul‑2003 | Kitzbuhel | Clay | QF | 64 | 48 | Nicolas Massu [CHI] d. Lapentti | 7-5 6-4 | | 0.87 | 3.0% | 3.0% | 56.1% | 64.9% | 44.8% | 3/7 | 2:14 |
| 26‑Aug‑2002 | US Open | Hard | R128 | 27 | 65 | Nicolas Massu [CHI] d. (27)Lapentti | 6-4 6-3 6-7(8) 7-5 | | 0.92 | 9.5% | 4.8% | 61.9% | 66.7% | 47.9% | 3/11 | 3:59 |
| 11‑Feb‑2002 | Vina del Mar | Clay | SF | 19 | 101 | (1)Lapentti d. Nicolas Massu [CHI] | 6-3 6-4 | | 1.21 | 9.8% | 1.6% | 52.5% | 75.0% | 48.3% | 1/3 | 1:55 |
| 5‑Aug‑1995 | Ecuador Masters 4 | Clay | R32 | 483 | | (4)Lapentti d. (Q)Nicolas Massu [CHI] | 6-3 6-1 | | | | | | | | | |