Kosuke Hasegawa
| Division | 18 |
| Home Town | Saratoga, CA |
| USTA Section | Northern California (NCTA) |
| Singles Line | 0 |
| Singles Seed | 0 |
| Doubles Line | 0 |
| Doubles Seed | 0 |
2008
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Cameron Ghorbani / Wayne Harrell def. Kosuke Hasegawa / Zack McCourt | 6-3, 6-2 |
Boys 16 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Kosuke Hasegawa def. Alexander Lineberry | 7-5, 6-2 |
| 2nd Rd | Daniel Hirschberg def. Kosuke Hasegawa | 6-2, 6-3 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 2nd Rd | Aaron Pfister def. Kosuke Hasegawa | 6-2, 6-1 |