Marco Kobayashi
| Division | 16 |
| Home Town | Honolulu, HI |
| USTA Section | Hawaii Pacific (HPTA) |
| Singles Line | 56 |
| Singles Seed | 0 |
| Doubles Line | 21 |
| Doubles Seed | 0 |
2009
Boys 16 Singles
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | Andrew Gores def. Marco Kobayashi | 7-5, 0-6, 6-3 |
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Samuel Shropshire def. Marco Kobayashi | 7-5, 6-2 |
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | Oliver Loutsenko / Henry Steer def. Marco Kobayashi / Chas Okamoto | 6-1, 6-7(2), 6-3 |