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 |  |  | | Jeffrey Mackenzie |  | | Residence: | Surfside, FL |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
Seminole Co. Winter Des. BG14, February 2, 2008
 New Millenium Local Championship, February 9, 2008
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Andrew Marczak | | 3-6; 6-2; 6-1 | | 16 | Win | Alexander Aguiar | | 6-2; 6-4 | | Q | Loss | Chase Urban | | 6-2; 7-5 |
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Coral Springs Super Series # 2, February 23, 2008
 Kendalltown Super Series, March 21, 2008
 Maxwell Park Local Spring Chmps., March 29, 2008
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Derek Porter | | 6-1; 6-1 | | CS | Win | Matthew Gladstone | | Def (ref)DP* | | CF | Win | Jonathan Rivera | | 8-1 |
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Serendipity Des. BG14, April 5, 2008
 Tier One Super Series, April 19, 2008
 The American Dream Local Chps, April 26, 2008
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | David Douglas | | 6-0; 6-0 | | 16 | Win | Peter Alexander | | 6-1; 6-2 | | Q | Win | Amar Arunachalam | | 6-4; 6-1 | | S | Win | Carlos de Bracamonte | | 7-5; 6-0 | | F | Loss | Zachary Krumholz | | 6-2; 6-2 |
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Miami/Key Biscayne Super Series, May 10, 2008
 Gulfstream Designated B14, May 24, 2008
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Win | Zachary Mearsheimer | | 6-0; 6-0 | | 32 | Loss | Alan Chocron | | 2-6; 6-3; 6-4 | | 2 | Loss | Mattias Hartmann | 359 | 6-1; 6-1 |
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Head/Penn Super Series, May 31, 2008
 USTA Zone Team Chmps BG14 - Naples, July 6, 2008
 USTA B14 National Clay Court Chmps., July 13, 2008
 Deer Creek Jr. Super Series II, July 26, 2008
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Jason Furlong | | 6-0; 6-1 | | 16 | Loss | Alexander Terescenko | | 6-4; 4-2Ret (inj)RJ |
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Miami Dade Jr. August Designated, August 9, 2008
 Clayton Feig Memorial Super Series, August 16, 2008
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Miles Ransom | | 7-5; 7-6(6) |
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Treasure Coast Super Series, August 23, 2008
 Summer Smash Regional Chmps., August 30, 2008
 First Coast Tennis Fnd. Designated, September 13, 2008
 Miami Crandon Park Fall Super Series, October 11, 2008
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Matthew Browne | | 6-0; 6-0 |
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Kendalltown Super Series Classic, October 18, 2008
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Jordan Feldman | | 6-2; 6-0 | | 16 | Loss | Rolando Torrellas | | 7-5; 3-6; 6-4 |
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Plantation Fall Des. BG16, November 8, 2008
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Loss | Ognjen Samardzic | 29 | 7-6(4); 6-2 | | 1 | Win | Boris Tiberkov | 127 | 6-4; 6-4 | | 2 | Win | Luis Elizondo | + | 6-0; 1-6; 6-2 | | 3 | Loss | Chad Miles | | 7-5; 6-2 |
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Golf & Racquet Local Fall Classic, November 15, 2008
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | Q | Win | James Dean | + | 3-6; 6-1; 6-0 | | S | Loss | Michael Swartz | | 6-3; 6-2 |
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USTA National Open, November 27, 2008
 Holiday Designated BG14-12, December 6, 2008
 47th Jr. Orange Bowl Chmps., December 17, 2008
 USTA National Winter Chmps., December 27, 2008
 + Strong win over an ineligible player. * The ranking calculation does not count this match.
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