Joshua Portnoy
| Division | 16 |
| Home Town | Okemos, MI |
| USTA Section | Midwest (MWTA) |
| Singles Line | 7 |
| Singles Seed | 0 |
| Doubles Line | 123 |
| Doubles Seed | 0 |
2019
Boys 16 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Joshua Portnoy def. Kian Vakili | 6-7(3), 6-4, 7-5 |
| 2nd Rd | Joshua Portnoy def. Jiaxi Ma | 7-6(5), 4-6, 6-2 |
| 3rd Rd | Alexander Bernard (1) def. Joshua Portnoy | 6-1, 6-3 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 3rd Rd | Eric Perkowski def. Joshua Portnoy | 6-4, 7-6(6) |
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Jonah Braswell / John Kim (32) def. Vignesh Gogineni / Joshua Portnoy | 0-6, 7-5, 1-0(5) |
2018
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Grant Durham / Baylor Sai def. Benjamin Letzer / Joshua Portnoy | 6-3, 6-4 |
Boys 16 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Joshua Portnoy def. Andrew Broadstreet | 6-1, 6-1 |
| 2nd Rd | Joshua Portnoy def. Daniel Labrador (29) | 6-3, 2-6, 6-3 |
| 3rd Rd | James Delgado def. Joshua Portnoy | 6-4, 4-6, 6-3 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 3rd Rd | Bryan Kulikov def. Joshua Portnoy | 6-1, 6-4 |