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 |  |  | | Cassidy Seo |  | | Residence: | Palatine, IL |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
Lincolnshire Girl's Challenger L6, July 13, 2012
 USTA/Midwest Section L5 Tourn., July 28, 2012
 Five Seasons NB Turkey Bowl L6, November 2, 2012
 College Park W Marriott BG16, November 16, 2012
 USTA Midwest Section Winter Chmps., December 27, 2012
 College Park W Marriott BG16 Icebreaker, January 4, 2013
 Ccac G16-14 L6, February 8, 2013
 WSC Winter Chmps. L6, February 15, 2013
 College Park W Marriott Breakpoint Open, March 1, 2013
 WSC Spring Open L6, March 8, 2013
 College of Dupage Classic, April 5, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Timara Maxwell | 1439 | 6-1; 6-2 | | CQ | Loss | Allison Bush | | 6-0; 6-0 |
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College Park East Spring Jamboree L6, April 12, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Nicole Pamphilis | 1907 | 6-2; 7-5 | | Q | Loss | Tiffany Chen | | 6-1; 6-0 |
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USTA Midwest L5 Tourn., April 20, 2013
 Western Springs Open L6, May 31, 2013
 Chicago District G16 Chmps., June 8, 2013

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