| |  | 
  | |  |
 |  |  | | Zachary Lessen |  | | Residence: | Roslyn Hts, NY |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
L1 Alley Pond New Year Chmps., January 1, 2010
 L1B Sportime Challenger, January 29, 2010
 L1 Port Washington Winter Classic Chmps., February 5, 2010
 L1 Eastern BG16 Des. Closed Chmps., February 26, 2010
 L1 Eastern B16 Des. Closed Chmps., March 19, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Loss | Stephen Peng | 1836 | 6-4; 1-6; 10-8 |
|  |  |
L1 Port Washington Spring Classic, March 29, 2010
 L1B Sportime Ri Chmps., April 23, 2010
 L1 PWTA Chmps, June 25, 2010
 L1B North Shore Towers Chal., July 6, 2010
 L1 RWTTC Labor Day Wildcard Chmps., August 13, 2010
 L1 Nutley NJ Clay Court Chmps., August 16, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Robert Xie | 1706 | 7-6(5); 6-3 |
|  |  |
L1 Solaris Fall Chmps., September 24, 2010
 L1 Point Set Eastern Des. B16, October 1, 2010
 L1 Sportsplex Eastern Des. B16, October 15, 2010
 L1 RWTTC Eastern Des. Closed B16, October 29, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 128 | Win | Daniel Wong | 2457 | 6-3; 7-5 |
|  |  |
L1B Courtsense at Bogota RC, December 17, 2010
 * The ranking calculation does not count this match.
| |  |  | |