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 |  |  | | Mark Martinkov |  | | Residence: | Falls Church, VA |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
Anaquash Jr. Open #2 L4, May 19, 2012
 Mall Annual Jr. Tourn., May 26, 2012
 Georgetown Prep Jr. Open L3, June 2, 2012
 RPM Sports Jr. Open L4, June 13, 2012
 Tennis Life Trinity Jr. Open L4, June 16, 2012
 USTA MAS Championship #3, June 19, 2012
 American University Jr. Open #1, June 30, 2012
 USTA MAS B16 Challenger #5, July 7, 2012
 District Of Columbia Jr. Open Chmps. L3, July 12, 2012
 American University Jr. Open #2 L4, August 4, 2012
 Tennis Life Bethesda Jr. Open L4, August 11, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Elijah Abass | 2228 | 2-6; 6-0; 10-5 |
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Nova Jr. Chmps. L3, August 16, 2012
 David Lemair Tennis Jr. Open, September 22, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Luke Maxwell | 1680 | 7-5; 3-6; 10-7 |
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Pentagon City Jr. Open #1 L4, October 12, 2012
 Fredericksburg Country Club Jr. #2, November 2, 2012
 USTA MAS B16 Challenger #7, November 16, 2012
 USTA MAS BG16 Challenger #8, December 8, 2012
 Potomac Jr. Open #14 L5, December 14, 2012
 Boars Head Sports Club Jr., December 21, 2012
 USTA VA State BG18,14 Indoor Chmps., December 26, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Andrew Curtis | | 6-0; 6-4 |
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USTA VA State BG16,12 Indoor Chmps., December 27, 2012
 Regency Jr. Open #2 L4, January 4, 2013
 Potomac Jr. Open #1 L5, January 18, 2013
 USTA MAS B16 Chmp. #2, March 9, 2013
 David Lemair Tennis Winter Outdoor Open, March 16, 2013
 David Lemair Tennis Jr. Open L4, April 13, 2013
 Hidden Valley Jr. Open L4, April 19, 2013
 USTA MAS B16 Challenger #2, April 20, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Jake Fishkin | 808 | 6-1; 4-1Ret (inj)RJ |
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USTA MAS Challenger #3 B16, May 4, 2013
 Pentagon City Jr. Open #1 L4, May 10, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Lui Zapata | | 6-2; 7-5 | | Q | Loss | Max Thompson | | 6-3; 6-2 |
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+ Strong win over an ineligible player. * The ranking calculation does not count this match.
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