| |  | 
  | |  |
 |  |  | | Kelly Costello |  | | Residence: | Honolulu, HI |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
Hilo Winter BG18-10, January 8, 2010
 DT Wailuku Winter Jr. Sectionals, January 16, 2010
 Hale Koa Jr. Open Singles, January 23, 2010
 Pearl Harbor Winter Jr. Tourn., January 30, 2010
 DT Holua Jr. Open, February 5, 2010
 Pearl Harbor Winter Jr., February 20, 2010
 HPTF February Jr., February 26, 2010
 Pearl Harbor Spring Jr., March 6, 2010
 DT USTA Spring Jr. Section Chmps., March 18, 2010
 USTA BG12 National Spring Chmps., April 11, 2010
 DT Pearl Harbor Easter Jr. Chmps., April 23, 2010
 Pearl Harbor Jr. Open-Int. Tourn., May 8, 2010
 West Hawaii District Chmps., May 29, 2010
 Hale Koa Jr. Open Singles, June 5, 2010
 DT USTA Nike Summer Section Chmps., June 10, 2010
 Pearl Harbor Summer Open, June 19, 2010
 Pearl Harbor Summer Jr. Open, July 10, 2010
 Zone Team BG12 - Tucson, July 28, 2010
 Pearl Harbor Summer Open, August 7, 2010
 DT Hawaii State Jr. Chmps., August 13, 2010
 Pearl Harbor Summer Open, August 28, 2010
 Hilo Fall Jr. Sectional Chmps., September 3, 2010
 Pearl Harbor Jr. Open, September 11, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | S | Loss | Nanea Perkins | 1794 | 6-4; 1-6; 10-3 |
|  |  |
Mike Agassi No Quit Chmps., September 18, 2010
 Kauai Fall Jr. Open, September 25, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | Q | Loss | Skyla Alcon | 615 | 6-2; 6-1 |
|  |  |
Dunlop Jr. Chmps., October 9, 2010
 North Hawaii TA Jr. Chmps., October 22, 2010
 2010 Halloween Benefit Tourn., October 30, 2010
 Pearl Harbor Jr. Open-Int.-Nov., November 13, 2010
 Tourn. of Jr. Champions, November 19, 2010
 USTA Winter National Chmps., December 27, 2010
 * The ranking calculation does not count this match.
| |  |  | |