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 |  |  | | Jeffrey Mackenzie |  | | Residence: | Surfside, FL |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
USTA National Winter Chmps., December 27, 2008
 Tennis Plaza Cup, January 17, 2009
 Gulfstream Designated B14, May 23, 2009
 Challenger Tennis Super Series, May 30, 2009
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Stefan Cooper | 766 | 6-2; 6-3 | | 16 | Loss | Emilio Teran | | 8-6 |
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USTA Florida Closed Sectional BG18-14, June 6, 2009
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Win | Sam Slade | 481 | 6-2; 6-0 | | 32 | Win | Christopher Kinigopoulo | | 1-6; 6-2; 6-3 | | 16 | Loss | Joshua Goodman | | 4-0Ret (ill)RI | | 3 | Loss | Brian Granoff | 144 | Wo (inj)WoJ* |
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USTA National Opens, July 4, 2009
 USTA B14 National Clay Court Chmps., July 19, 2009
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 128 | Win | Jess Jones | 126 | 2-6; 6-1; 6-3 | | 64 | Loss | Ronnie Schneider | | 6-0; 6-1 | | 3 | Win | McClaine Roy | 39 | 6-1; 6-1 | | 4Q | Win | Alex Hahn | 108 | 6-4; 7-5 | | 4 | Loss | Carl Reid | | 6-4; 7-5 |
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USTA Zone Team BG14 - Virginia Bch, July 29, 2009
 First Coast Tennis Fnd. Designated, September 12, 2009
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Win | Cameron Colvard | | 6-2; 6-0 | | 32 | Loss | Ricky Szymanski | | 6-3; 4-6; 10-7 | | 2 | Win | Samvel Mkrtychev | | 6-3; 6-2 | | 3 | Win | Michael Secular | | 6-4; 6-1 | | CQ | Win | Gavin White | | Wo (emerg)WoJ* | | CS | Win | Harlan Swift | | 3-6; 6-2; 10-2 |
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The Cincinnati Open, October 23, 2009
 John Paul Riddle Mem. Super Series, November 21, 2009
 USTA National Open, November 26, 2009
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Loss | Andrew Yaraghi | | 6-1; 6-2 | | 1 | Win | Tyler Gadbois | | 6-2; 6-2 | | 2 | Loss | Charlie Ghriskey | | 6-1; 6-4 |
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Lawnwood Designated BG16, December 5, 2009
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Win | Robert Dvorak | | 6-2; 6-0 | | 32 | Loss | Gustavo Gonzalez | | 4-6; 6-2; 10-2 | | 2 | Win | Skye Waterman | | Wd (ill)WI* |
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+ Strong win over an ineligible player. * The ranking calculation does not count this match.
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