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 |  |  | | Mark Peneff |  | | Residence: | Calabasas, CA |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
16th West Coast Jr. Open & Sat. Tourn., May 26, 2012
 97th Santa Barbara Summer Tourn., June 2, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Loss | Jack Damen | 401 | 6-0; 6-2 |
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110th So. California Sectional Chmps., June 16, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 256 | Loss | Shane Cruz | 705 | 6-4; 6-0 |
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68th Annual Ventura Jr. Tourn., June 23, 2012
 Beverly Hills Jr. Tourn., June 30, 2012
 34th Racquet Centre Jr. Open Tourn., August 18, 2012
 49th Northridge-Matador Jr. Open Tourn., September 22, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 128 | Loss | Charles Pei | 186 | 6-2; 6-1 |
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The Orange Co./J.P. Yamasaki Open, October 6, 2012
 West Coast Tennis South Bay Fall Open, October 13, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Loss | Hudson Graf | 1565 | 6-3; 4-6; 6-1 |
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68th Itennis Rose Bowl Jr. Chmps., October 20, 2012
 23rd Calabasas Jr. Open Tourn., November 2, 2012
 The SoCal Jr. Chmps., November 17, 2012
 Rancho Cienega Tennis Shop Jr. Open Tour, November 23, 2012
 49th Annual Anaheim Jr. Tourn., December 1, 2012
 9th Yes Foundation Winter Jr. Open, January 5, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Isaiah Volk | 755 | 6-2; 5-7; 10-3 |
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62nd Gene Jung Whittier Midwinter Tourn., January 19, 2013
 68th Annual Fullerton Jr. Tourn., February 2, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 128 | Loss | Hikaru Kasai | 2013 | 6-4; 2-0Ret (inj)RJ |
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