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 |  |  | | Harry Seaborn |  | | Residence: | North Salem, NY |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
L1 Eastern B18 Des. Closed Chmps., January 8, 2010
 L1 Eastern B18 Des. Closed Chmps., February 12, 2010
 USTA National Open, February 13, 2010
 USTA National Spring Chmps., March 14, 2010
 L1 Eastern B18 Des. Closed Chmps., March 19, 2010
 L1 Mendham B18 Des. Closed, May 21, 2010
 L1 Eastern Des. Closed Chmps. BG18-16, June 4, 2010
 USTA National Opens, July 3, 2010
 Boys' 18 National Team, July 31, 2010
 USTA National BG18-16 Chmps., August 6, 2010
 * The ranking calculation does not count this match.
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