Billy Heiser
| Division | 18 |
| Home Town | Vernon Hills, IL |
| USTA Section | Midwest (MWTA) |
| Singles Line | 79 |
| Singles Seed | 0 |
| Doubles Line | 0 |
| Doubles Seed | 0 |
2003
Boys 18 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | Marek Czerwinski / Billy Heiser def. Ricardo Gonzalez / Shane LaPorte | 6-4, 1-6, 7-6(5) |
| 3rd Rd | Matthew Bain / Hubert Chodkiewicz (10) def. Marek Czerwinski / Billy Heiser | 6-2, 7-6(3) |
Boys 18 Singles
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | Billy Heiser def. Shane LaPorte | 6-1, 6-1 |
| 3rd Rd Qualifying | Treat Huey (31) def. Billy Heiser | 6-3, 6-2 |
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Alexandru Cojanu def. Billy Heiser | 7-6(3), 6-4 |
2002
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Stephen Robertson / Tyler Wilson def. Billy Heiser / Timothy Smyczek | 7-5, 7-5 |
Boys 16 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Billy Heiser def. Thomas Stoddard | 7-6(5), 6-3 |
| 2nd Rd | Billy Heiser def. Michael Samara (11) | 6-4, 7-6(5) |
| 3rd Rd | Billy Heiser def. Tony Piro | 6-4, 6-4 |
| 4th Rd | Billy Heiser def. Andrew Eklov | 6-7(4), 6-1, 6-4 |
| 5th Rd | Travis Helgeson (18) def. Billy Heiser | 6-2, 6-2 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 5th Rd | Ned Samuelson (12) def. Billy Heiser | 6-1, 6-0 |
2001
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Billy Heiser / Ryan Yao def. Chris Boyd / Matthew Hall | 6-2, 6-2 |
| 2nd Rd | Ted Mabrey / Todd Paul def. Billy Heiser / Ryan Yao | 6-0, 7-5 |