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 |  |  | | Joshua Piatos |  | | Residence: | Temple City, CA |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
19th Costa Mesa Summer Jr. Classic, July 16, 2012
 14th Upland TC Jr. Open Tourn., August 11, 2012
 Match Tough TA Jr. Classic, August 13, 2012
 Glendora Open Tourn., August 18, 2012
 34th Racquet Centre Jr. Open Tourn., August 18, 2012
 83rd Santa Monica Jr. Open & Satellite, August 20, 2012
 28th Los Caballeros Jr. Open Tourn., September 8, 2012
 49th Northridge-Matador Jr. Open Tourn., September 22, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Loss | Max Pham | 395 | 5-0Ret (ill)RI |
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Rancho Cienega Tennis Shop Jr. Open Tour, November 23, 2012
 Indian Wells Tennis Garden Year End Open, December 27, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Alex Wong | 2518 | 6-3; 6-1 |
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Mission Hills Jr. Open Chmps., January 5, 2013
 62nd Gene Jung Whittier Midwinter Tourn., January 19, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 128 | Loss | Grant Alston | 2104 | 6-3; 6-4 |
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68th Annual Fullerton Jr. Tourn., February 2, 2013
 56th Long Beach Jr. Tourn., March 9, 2013
 29th Anaheim TC Spring Open Tourn., April 27, 2013
 * The ranking calculation does not count this match.
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