William Blumberg
| Division | 18 |
| Home Town | Greenwich, CT |
| USTA Section | Eastern (ETA) |
| Singles Line | 0 |
| Singles Seed | 0 |
| Doubles Line | 0 |
| Doubles Seed | 0 |
2015
Boys 18 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | Henrik Wiersholm def. William Blumberg (8) | 1-6, 6-3, 6-4 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 2nd Rd | Zachary Lieb def. William Blumberg (8) | Wo(ill) |
2014
Boys 16 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | William Blumberg (8) def. Adam Ambrozy | 6-4, 6-2 |
| 2nd Rd | William Blumberg (8) def. Galen Lee | 6-4, 6-1 |
| 3rd Rd | Oliver Crawford def. William Blumberg (8) | 6-3, 6-2 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 3rd Rd | Jordan Benjamin (15) def. William Blumberg (8) | 2-3 Ret(inj) |
2013
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | William Blumberg / Nathan Ponwith (15) def. Asher Hirsch / Johnathan Small | 7-5, 6-3 |
| 3rd Rd | William Blumberg / Nathan Ponwith (15) def. Daniel Grunberger / David Liu | 6-4, 7-6(8) |
| 4th Rd | Grayson Broadus / Jean Thirouin (5) def. William Blumberg / Nathan Ponwith (15) | 6-2, 6-4 |
Boys 16 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | William Blumberg (17) def. Alexander Keyser | 6-4, 7-6(3) |
| 3rd Rd | Evan Zhu def. William Blumberg (17) | 7-5, 6-1 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 3rd Rd | William Blumberg (17) def. Dylan King | Wo(inj) |
| 4th Rd Qualifying | Dennis Wang def. William Blumberg (17) | Wo(inj) |