Giovanni Lapentti defeated Nicolas Mahut 4-6 6-1 6-3 in the US Open q128 on hard. The upset overturned the form book — Nicolas Mahut came in defending last year's round of 128. Giovanni Lapentti extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-06-05 | London | Q16 | carpet | Nicolas Mahut | 7-6(4) 4-6 7-5 |
| 2005-08-01 | Washington | R64 | hard | Giovanni Lapentti | 6-2 6-3 |
Averages over each player's completed matches in the selected window (108 vs 200). 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