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 |  |  | | Helena Gabrielle Ong |  | | Residence: | Cupertino, CA |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
Dunlop Jr. Chmps., October 10, 2009
 Broadstone Jr. Excellence, October 17, 2009
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Adrienne Sturgis | | 6-3; 6-2 | | 2 | Loss | Seriana Saltzen | 596 | Wo (ill)WoI* |
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SSRC Jr. Excellence, January 30, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Thalia Brown | | 6-3; 6-1 | | 2 | Loss | Lise Swain | 430 | Wd (ill)WI* |
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Johnson Ranch BG18-10 Chmps., February 27, 2010
 Cupertino Easter Challenger Tourn., April 17, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | S | Loss | Katia Mironova | | 6-0; 6-3 | | PL | Loss | Jacqueline Fancher | | 1-6; 6-4; 10-2 |
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Seascape Summer Kickoff Open, June 26, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Megan Wong | | 6-4; 6-3 | | Q | Loss | Ursi Eisinger | | 7-5; 6-1 |
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Tiburon Summer Jr. Open, July 9, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Sonia Krishna | | 6-0; 6-0 | | Q | Loss | Anastasia Bryan-Ajania | | 6-1; 4-6; 10-7 |
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Santa Cruz TA Jr. Open, July 24, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Ruth Sarwal | | 6-4; 6-1 | | Q | Loss | Alecsia Prince | | 6-2; 6-4 |
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West Coast Chmps., August 2, 2010
 Niru's Tennis Academy Open, August 21, 2010
 Courtside Jr. Chmp., September 18, 2010
 + Strong win over an ineligible player. * The ranking calculation does not count this match.
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