| |  | 
  | |  |
 |  |  | | Preston Callen |  | | Residence: | Coppell, TX |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
Walnut Creek CMZ, January 9, 2010
 DPTA Chmp. Super Chal. Huffhines, January 23, 2010
 Fort Worth Winter Open, January 29, 2010
 WFTA Feb. Champ Major Zone, February 6, 2010
 DPTA Champ Super Chal., February 27, 2010
 Austin BG18,16 SCMZ, March 13, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Krishna Kapoor | | 6-2; 6-2 | | CQ | Loss | Zack Bond | 2434 | 6-0; 6-3 |
|  |  |
DPTA Ch/SC Challenger Eldorado, March 27, 2010
 DPTA Champ Super Challenger, April 3, 2010
 Houston Open Super Champ MZ, May 15, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Win | Krishna Kapoor | + | 6-4; 7-6(5) | | 16 | Win | Bodey Brown | | 6-4; 6-3 | | Q | Loss | Kyle Barnes | 446 | 6-3; 6-4 |
|  |  |
DPTA Chmp./SC Challenger, May 22, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Michael Daseke | 944 | 6-4; 1-0Wd (inj)WJ* | | CQ | Loss | Jacob Van Der Schans | | Wd (inj) |
|  |  |
Texas Summer Grand Slam, June 11, 2010
 NRH Jr. Open, June 18, 2010
 Arlington TA Jr. Open, July 2, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | Q | Loss | Nicolas Erturkuner | | 6-3; 6-2 | | CS | Win | Karan Bindra | 1785 | Wo (inj)WoJ* | | CF | Loss | Allen-Michael Muench | | 7-5; 6-4 |
|  |  |
Alamo City SC MZ BG18,16, July 10, 2010
 DPTA Champ/SC Challenger, July 24, 2010
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Goh Iwata | 960 | Wd (ill)WI* |
|  |  |
Fair Oaks Summer Open, July 30, 2010
 Arlington Tennis Center SCMZ BG18-16, August 14, 2010
 DPTA Champ Super Chal., August 28, 2010
 Bob Faulkner BG18-16 SC MZ, October 9, 2010
 Fair Oaks Fall Classic, November 5, 2010
 Break-It-Out Champ/Super, November 26, 2010
 Cotton Bowl SCMZ BG18-16, December 4, 2010
 + Strong win over an ineligible player. * The ranking calculation does not count this match.
| |  |  | |