Gustavo Villares-Vaillant
| Division | 18 |
| Home Town | Guaynabo, PR |
| USTA Section | Caribbean (CTA) |
| Singles Line | 0 |
| Singles Seed | 0 |
| Doubles Line | 0 |
| Doubles Seed | 0 |
2005
Boys 18 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Jose Perdomo / Gustavo Villares-Vaillant def. Jason Morgenstern / Jonathan Wong | 6-3, 6-3 |
| 2nd Rd | Dylan Arnould / Jamie Hunt def. Jose Perdomo / Gustavo Villares-Vaillant | 7-5, 6-1 |
Boys 18 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bijan Moallemi def. Gustavo Villares-Vaillant | 6-3, 6-4 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | Nathaniel Gorham def. Gustavo Villares-Vaillant | 6-2, 6-2 |
2004
Boys 16 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Gustavo Villares-Vaillant def. Jarrad Smoke | 7-5, 6-1 |
| 2nd Rd | Rook Schellenberg (15) def. Gustavo Villares-Vaillant | 6-3, 6-0 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 2nd Rd | Gustavo Villares-Vaillant def. Austin Roebuck | 6-2, 1-6, 6-4 |
| 3rd Rd Qualifying | Thomas McGeorge def. Gustavo Villares-Vaillant | 6-0, 6-0 |
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | Jeffrey Friedman / Doug Mayeda def. Javier Baerga / Gustavo Villares-Vaillant | 6-3, 5-7, 6-2 |