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 |  |  | | Brian Sun |  | | Residence: | Fremont, CA |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
SSRC Jr. Excellence, January 28, 2012
 Johnson Ranch Jr. Chmps., February 11, 2012
 USTA National Open, February 25, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Harrison Smith | + | 6-2; 6-2 | | 16 | Loss | Sean Karl | 86 | 6-2; 6-4 | | 2 | Win | Mitchel Knight | + | 7-6; 6-2 | | QQ | Loss | Grant Solomon | 38 | 6-1; 6-3 |
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USTA National Spring Championship, March 11, 2012
 Diamond Hills Jr. Chmps., April 14, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Eric Spence | 440 | 6-2; 6-2 |
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USTA National Open, May 12, 2012
 Spare Time Clubs Memorial Day Jr. Excell, May 19, 2012
 NORCAL BG18 Sectional Chmps., June 9, 2012
 USTA National Open, July 2, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Matthew Barry | | 6-3; 6-4 | | 1 | Loss | Gustavo Gonzalez | | 6-3; 1-6; 10-6 |
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USTA B18,16 National Clay Court Chmps., July 15, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 128 | Loss | Jack Haffey | 396 | 6-1; 6-3 | | 2 | Win | Evan Nix | + | 6-0; 0-6; 10-7 | | 3Q | Loss | Myles Tang | 205 | Wo (inj)WoJ* |
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USTA Regional Tourn. (Carmel), September 1, 2012
 + Strong win over an ineligible player. * The ranking calculation does not count this match.
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