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 |  |  | | Ethan Kowalski |  | | Residence: | Rockville, MD |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
USTA MAS B12 Challenger #8, December 10, 2011
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Chase Cohen | 536 | 3-6; 6-1; 6-0 |
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Ken Guendel Mem. Holiday Classic L3, December 26, 2011
 USTA MAS B12 Challenger #1, February 11, 2012
 Georgetown Prep Jr. Open L3, June 2, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Loss | Marko Williams | | 6-1; 6-0 |
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American University Jr. Open #1, June 30, 2012
 USTA MAS B14 Challenger #4, July 7, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Win | Cade Buch | | 6-2; 3-6; 7-5 | | 32 | Loss | Curran Verma | | 7-5; 6-1 |
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Maryland Jr. Outdoor Chmps., July 28, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Liam Rotzoll | 171 | 6-4; 6-0 | | 1 | Win | Vasko Nechev | + | 7-5; 6-1 | | 2 | Loss | Samuel Safdari | | 6-1; 6-0 |
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Annapolis Jr. Open L3, August 4, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | Q | Win | Peter Ely | | 6-0; 6-0 | | S | Loss | Logan Tran | | 6-2; 6-1 | | PL | Loss | James Scotty | | 2-6; 6-1; 1-0 |
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USTA MAS B14 Challenger #5, August 18, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Ryan Kros | | 6-1; 6-0 |
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Nasdaq at Twin Lakes Jr. L5 #26, October 19, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | S | Win | Adam Fiergang | | 6-0; 6-0 | | F | Win | Nicholas Frankenberg | | 7-5; 5-7; 10-7 |
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+ Strong win over an ineligible player. * The ranking calculation does not count this match.
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