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 |  |  | | Ethan Kowalski |  | | Residence: | Rockville, MD |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
Georgetown Prep Jr. Open L3, June 2, 2012
 American University Jr. Open #1, June 30, 2012
 USTA MAS B14 Challenger #4, July 7, 2012
 Maryland Jr. Outdoor Chmps., July 28, 2012
 Annapolis Jr. Open L3, August 4, 2012
 USTA MAS B14 Challenger #5, August 18, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Ryan Kros | 503 | 6-1; 6-0 |
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Nasdaq at Twin Lakes Jr. L5 #26, October 19, 2012
 Green Spring Halloween Open, October 26, 2012
 West Winds Indoor Satellite #4 L4, January 25, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Isaac Hoehn | | 6-1; 6-1 | | Q | Loss | Jack McLister | | 6-2; 6-1 |
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Green Spring Jr. BG18-16 L4, February 23, 2013
 Potomac Jr. Open #8 L5, April 19, 2013
 + Strong win over an ineligible player. * The ranking calculation does not count this match.
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