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 |  |  | | David Zak |  | | Residence: | Highland Park, IL |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
Libertyville Challenger L6, June 5, 2009
 Chicago Dst. Qualifier L4, June 12, 2009
 Fourth of July Wildcat Smash Chal. L6, July 2, 2009
 Ann Arbor Jr. Open, August 3, 2009
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 128 | Loss | Pierce Kohls | | 6-4; 6-3 | | 1 | Win | Rob Tu | | 6-2; 6-0 | | 2 | Win | David Hebda | | 6-4; 6-2 | | 3Q | Win | Jay Joshi | 421 | 6-1; 6-4 | | 3 | Win | Ethan Cohen | | 6-3; 6-0 | | 4Q | Win | Austin Armstrong | + | 7-5; 5-7; 10-5 | | 4 | Loss | Daniel Ballantine | | 6-2; 6-3 |
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College Park Aces Wild Open L6, August 14, 2009
 Lincolnshire Nov. Chal., November 13, 2009
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Rishi Chatterji | | 6-4; 6-1 | | Q | Win | Jack Lorentsen | | 6-2; 6-2 | | S | Loss | David Packowitz | | 6-1; 6-0 |
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Wildcat New Year Challengerlevel 6, December 30, 2009
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | S | Loss | Benjamin Shklyar | | 6-1; 6-1 |
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+ Strong win over an ineligible player. * The ranking calculation does not count this match.
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