Brian Sun
| Division | 18 |
| Home Town | Fremont, CA |
| USTA Section | Northern California (NCTA) |
| Singles Line | 0 |
| Singles Seed | 0 |
| Doubles Line | 59 |
| Doubles Seed | 0 |
2012
Boys 18 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Charles Depaolo / Becker O'Shaughnessey def. Thomas Nath / Brian Sun | 6-2, 6-3 |
2011
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | William Jou / Brian Sun def. Augustus Ge / Max Wightman | 6-3, 6-3 |
| 3rd Rd | Roy Lederman / Ognjen Samardzic (9) def. William Jou / Brian Sun | 6-7(3), 6-1, 1-0(7) |
Boys 16 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | Brian Sun def. Kenny Zheng | 6-2, 6-1 |
| 3rd Rd | Henry Craig (30) def. Brian Sun | 7-5, 7-5 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 3rd Rd | Brian Sun def. Benjamin Kelley | 7-6(2), 6-3 |
| 4th Rd Qualifying | Aron Hiltzik def. Brian Sun | 6-2, 6-2 |
2010
Boys 16 Doubles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Edward Covalschi / Harris Jadun def. Dylan Brown / Brian Sun | 6-3, 6-2 |
Boys 16 Singles
Main Draw
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | David Weiner def. Brian Sun | 6-4, 6-3 |
Feed-In
| Round | Players | Final Score |
|---|---|---|
| 1st Rd | Bye | Automatic Advance |
| 2nd Rd | Anton Zykov def. Brian Sun | 7-6(3), 6-1 |