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 |  |  | Jeffrey Mah |  | Residence: | Irvine, CA |
Birthplace: | Unknown | Age: | Unknown | Height: | Unknown | Plays: | Unknown | Coaching: | Unknown |  | Complete Bio | |
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
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | 128 | Win | Alex Fedor | 831 | 6-3; 6-2 | 64 | Win | John Freer | | 6-3; 6-3 | 32 | Loss | Harry Cohen | | 6-3; 6-3 |
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56th Long Beach Jr. Tourn., March 9, 2013
 Match Point TA Spring Open Chmps., May 18, 2013
 28th Anaheim Hills Jr. Open Tourn., June 1, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | 16 | Loss | Harry Yang | 403 | 1-6; 6-4; 6-3 |
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111th SoCal Jr. Sectional Chmps., June 15, 2013
 USTA Regional Tourn. (Irvine), July 6, 2013
 18th Orange CTA Jr. Open Tourn., August 15, 2013
 15th Ramada TC Jr. Open Tourn., August 31, 2013

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