| |  | 
  | |  |
 |  |  | | Mark Welsh |  | | Residence: | Cathedral City, CA |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
Indian Wells Tennis Garden Thanksgiving, November 23, 2012
 Palm Valley Alek Feller Memorial Open, December 1, 2012
 Monterey CC Dec. Open Tourn., December 22, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 2 | Win | Andrew Munoz | 1823 | Wd (admin)WI* |
|  |  |
Palm Valley Presidents' Day Open Chmps., February 16, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Michael Rosen | 3571 | 6-1; 3-6; 10-4 |
|  |  |
Desert Princess Spring Jr. Open Chmps., March 2, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Loss | Kent Hunter | 3230 | 6-2; 6-0 |
|  |  |
* The ranking calculation does not count this match.
| |  |  | |