Karl Collins
| Division | 18 |
| Home Town | Vallejo, CA |
| USTA Section | Northern California (NCTA) |
| Singles Line | 198 |
| Singles Seed | 0 |
| Doubles Line | 121 |
| Doubles Seed | 0 |
2019
Boys 18 Singles
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | Nathan Han def. Karl Collins | 4-6, 6-2, 1-0(0) |
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | John Bernard def. Karl Collins | 1-6, 7-5, 6-3 |
Boys 18 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Luke Baylis / Saiprakash Goli def. Karl Collins / Theodore Dean | 6-4, 2-6, 1-0(8) |
2018
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Dillon Blake / William Kesterson def. Brandon Aprill / Karl Collins | 3-6, 6-3, 1-0(8) |
Boys 16 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Karl Collins def. Timothy Li (56) | 2-6, 6-3, 6-3 |
| 2nd Rd | Karl Collins def. Anesh Jayasundera | 6-0, 6-2 |
| 3rd Rd | Aidan Mayo (26) def. Karl Collins | 7-6(5), 3-6, 6-4 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 3rd Rd | Kush Patel def. Karl Collins | 6-3, 6-1 |