Galo Blanco defeated Mariano Puerta 6-2 6-2 6-4 in the Roland Garros round of 64 on clay. The upset overturned the form book — Mariano Puerta came in leading the head-to-head 3–0, defending last year's round of 64. Galo Blanco claimed a first win over Mariano Puerta in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-10-04 | Palermo | R32 | clay | Mariano Puerta | 6-4 6-3 |
| 1998-08-10 | San Marino | R16 | clay | Mariano Puerta | 4-6 6-3 6-1 |
| 1997-11-03 | Santiago | R32 | clay | Mariano Puerta | 6-4 6-3 |
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 (45 vs 80). ATP, WTA & Challenger.