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 |  |  | | Johnathan Lieu |  | | Residence: | Fountain Valley, CA |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
16th West Coast Jr. Open & Sat. Tourn., May 26, 2012
 110th So. California Sectional Chmps., June 16, 2012
 13th Chapman Univ. Jr. Open Tourn., July 7, 2012
 USTA Zonal BG16 - Utah, July 25, 2012
 4th Jim Buck GB16-18 Team, August 24, 2012
 28th Los Caballeros Jr. Open Tourn., September 8, 2012
 USTA Regional Tourn. (Rancho Mirage), October 27, 2012
 49th Annual Anaheim Jr. Tourn., December 1, 2012
 Lakewood Winter Jr. Open Tourn., January 5, 2013
 62nd Gene Jung Whittier Midwinter Tourn., January 19, 2013
 68th Annual Fullerton Jr. Tourn., February 2, 2013
 4th Cerritos Reg. Park Open Tourn., February 16, 2013
 32nd Woody Hunt Mem. South Bay Tourn., February 23, 2013
 56th Long Beach Jr. Tourn., March 9, 2013
 26th San Gabriel Valley Open, April 6, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Grant Alston | 2104 | Wo (emerg)WoJ* |
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Woodbridge TC Spring Jr. Open, April 13, 2013
 113th Ojai Valley Jr. Tourn., April 25, 2013
 29th Anaheim TC Spring Open Tourn., April 27, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Loss | Charles Pei | 563 | 6-4; 6-4 |
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+ Strong win over an ineligible player. * The ranking calculation does not count this match.
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