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 |  |  | | Sebastian Mermersky |  | | Residence: | Washington, DC |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
USTA MAS B12 Chmp. #1, January 15, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Logan Tran | | 6-1; 6-3 | | 16 | Win | Alec Angradi | | 6-1; 6-0 | | Q | Win | Kyrylo Tsygura | 22 | 6-4; 6-7(5); 6-1 | | S | Loss | Evan Zhu | | 6-1; 6-2 |
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USTA MAS B14 Chmp. #1 L1, January 29, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Alexander Nesterovich | | 6-3; 6-4 | | 1 | Win | Long Huynh | | 6-3; 6-4 | | 2 | Win | Jacob Walker | + | 1-6; 6-1; 6-2 | | QQ | Win | Blest Jones | + | 6-2; 6-4 | | CQ | Loss | Evan Zhu | | 6-4; 0-6; 6-3 |
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USTA MAS B14 Challenger #1, February 19, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Robert Maciag | 120 | 6-2; 6-2 | | 16 | Loss | Matthew Sklar | | 6-3; 6-3 |
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USTA BG12 National Spring Chmps., April 10, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 128 | Loss | Hunter Egger | | 6-1; 6-3 | | 1-W | Win | Jeff Zucker | 50 | 3-6; 7-5; 10-7 | | 2-W | Win | Ethan Hillis | | 6-2; 5-7; 10-8 | | 3-W | Loss | John Carlin | | 5-7; 7-5; 10-4 |
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USTA National Open, May 14, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | George Gramatikov | 57 | 6-0; 7-5 | | 16 | Win | Eric Yoo | + | 6-4; 6-0 | | Q | Win | Revanth Boppana | + | 0-6; 6-0; 1-0(9) | | S | Loss | Aleksandar Kovacevic | | 6-7(4); 6-4; 1-0(2) | | PL | Win | Andrew Fenty | 42 | 6-2; 6-3 |
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USTA MAS B16 Challenger #3, May 21, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Harry Hoven | | 6-1; 4-6; 6-4 |
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Mall Annual Jr. Tourn., May 28, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Win | P.J. Anderson | | 6-0; 6-1 | | 32 | Win | Adam Fenton | + | 6-4; 6-4 | | 16 | Win | Blest Jones | + | 6-3; 6-3 | | Q | Win | Nik Padmanabhan | + | 7-5; 6-2 | | S | Win | Alexander Reinke | + | 6-1; 6-1 | | F | Win | Jack Thomas | + | 3-6; 7-5; 15-13 |
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Regency Jr. Open #9 L4, June 3, 2011
 USTA MAS BG12 Chmp. #3, June 22, 2011
 USTA MAS B14 Challenger #4, July 9, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Alec Angradi | | 6-2; 6-3 | | Q | Win | Jack Tascher | 56 | 6-1; 6-1 | | S | Win | Mark Prettyman | + | 6-1; 6-3 | | F | Win | Kyrylo Tsygura | 22 | 6-7; 7-6; 6-2 |
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USTA B12 National Clay Court Chmps., July 17, 2011
 USTA BG12 Zonals - Knoxville, July 27, 2011
 USTA MAS B16 Challenger #5, August 20, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Win | Kieran Raphael | | 6-2; 7-6(3) | | 32 | Loss | Fred Mesmer | | 5-7; 6-1; 6-0 |
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Potomac Jr. Open #8 L4, August 26, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Payam Ahmadi | + | 1-6; 7-6(7-4); 12-10 | | Q | Win | Eric Dubrow | | 6-3; 6-2 | | S | Win | Matthew Fine | | Wd (inj)WJ* | | F | Win | Josh Albertson | | 6-3; 6-3 |
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Fort Lincoln Jr. Open L4, September 3, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Eric Spangler | | 6-3; 6-3 | | Q | Win | Ross Pegram | | 7-6; 6-3(7-5) | | S | Loss | Jacob Walker | | 6-4; 6-2 | | CQ | Win | Karl Campanella-Dysart | | 6-3; 7-5 | | CS | Win | P.J. Anderson | | 8-4 | | CF | Win | Jacob Walker | | Wd (admin)WI* |
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USTA MAS B14 Challenger #6, September 10, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Eric Dubrow | | 6-1; 6-1 | | 16 | Win | Jack Tascher | 56 | 6-3; 6-3 | | Q | Win | Payam Ahmadi | + | 0-6; 6-1; 6-4 | | S | Loss | Dennis Afanasev | | 3-6; 6-3; 7-5 | | PL | Loss | William Howells | 12 | 6-3; 6-1 |
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NIKE Jr. Tour USA Masters, September 16, 2011
 USTA MAS B14 Championship #4, October 8, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Jack Tascher | 56 | 6-1; 4-6; 6-1 | | 16 | Win | Charles Kittredge | | 6-1; 6-2 | | Q | Loss | Evan Zhu | | 6-3; 6-7(5); 6-1 | | CQ | Loss | Kyrylo Tsygura | 22 | 6-3; 6-4 |
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USTA MAS B16 Championship #4, October 15, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Francis Tiafoe | | 6-1; 6-2 | | 1 | Win | Garrett Weinstein | + | 1-6; 6-1; 6-3 | | 2 | Loss | Sean Ngo | | 6-3; 6-3 |
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RCC Clay Court MAS B16 Challenger #7, November 4, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Justin Cerny | | 6-1; 6-3 |
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USTA MAS B14 Challenger #7, November 12, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Joseph Nardini | | 6-2; 6-3 | | 16 | Win | Hammy Abu-Hamda | | 6-4; 6-4 | | Q | Win | Payam Ahmadi | + | 7-5; 2-6; 6-1 | | S | Win | Dennis Afanasev | + | 6-4; 6-2 | | F | Loss | Kyrylo Tsygura | 22 | 6-4; 3-1Ret (ad)RAD |
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USTA National Open, November 25, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Jason Kerst | + | 6-4; 6-7(4); 6-4 | | 16 | Loss | Edan Sossen | | 6-3; 6-2 | | 2 | Win | JJ Wolf | + | 6-4; 6-4 | | QQ | Win | Kevin Xu | + | 6-4; 6-3 | | CQ | Loss | Jason Kros | | 6-1; 4-6; 10-5 |
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USTA MAS B14 Challenger #8, December 3, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Michael Fleming | | 6-4; 6-3 | | Q | Win | Chase Bernstine | 144 | 6-4; 6-3 | | S | Win | Adrien Bouchet | + | 7-6(3); 6-4 | | F | Win | Joseph Cartledge | + | 7-5; 6-4 |
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USTA MAS BG16 Challenger #8, December 10, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Wesley Wong | + | 4-3Ret (ill)RI | | 16 | Loss | Fred Mesmer | | 7-5; 6-2 |
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50th Jr. Orange Bowl Int'l. Tennis Chmps, December 14, 2011
 Ken Guendel Mem. Holiday Classic L3, December 26, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Payam Ahmadi | + | 7-5; 6-2 | | 16 | Win | Daniel Chen | + | 6-4; 6-3 | | Q | Win | Miles Hendricks | + | 6-4; 6-3 | | S | Win | Kevin Chen | + | 7-5; 6-3 | | F | Loss | Nik Padmanabhan | | 6-0; 6-4 |
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+ Strong win over an ineligible player. * The ranking calculation does not count this match.
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