| |  | 
  | |  |
 |  |  | | Jeran Heistermann |  | | Residence: | Anaheim, CA |
| Birthplace: | Unknown | | Age: | Unknown | | Height: | Unknown | | Plays: | Unknown | | Coaching: | Unknown |  | | Complete Bio | |
27th Anaheim Hills Jr. Open Tourn., June 2, 2012
 110th So. California Sectional Chmps., June 16, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 256 | Loss | Anja Seng | 1935 | 6-2; 6-1 |
|  |  |
25th Costa Mesa Satellite Tourn., June 30, 2012
 Nellie Gail Summer Jr. Satellite Tourn., July 28, 2012
 17th Annual Orange Co. TA Jr. Open Tourn, August 16, 2012
 Indian Wells Tennis Gardens Labor Day Op, August 31, 2012
 28th Los Caballeros Jr. Open Tourn., September 8, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 128 | Loss | Sarina Liu | 745 | 6-0; 6-0 |
|  |  |
17th Anaheim Hills Jr. Satellite Tourn., September 29, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 16 | Win | Tiana Cung | | 7-5; 6-2 | | Q | Loss | Erin McDonald | | 6-1; 6-0 |
|  |  |
68th Itennis Rose Bowl Jr. Chmps., October 20, 2012
 22nd San Gabriel Valley Satellite Tourn., October 27, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | Q | Win | Tyler Garant | | 6-4; 6-4 | | S | Loss | Tegwyn John | | 6-2; 6-1 |
|  |  |
13th Plaza Racquet Club Jr. Open Chmps., November 3, 2012
 21st Westcoast Winter Jr. Open/Sat., November 17, 2012
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 64 | Loss | Emily Hsiao | 2337 | 6-1; 6-1 |
|  |  |
37th Claremont Club Jr. Tourn., December 15, 2012
 22nd SoCal Christmas Jr. Tourn., December 26, 2012
 Lakewood Winter Jr. Open Tourn., January 5, 2013
  |  |  Rnd |  Result |  Opponent |  Rank |  Score | | 32 | Loss | Hoda Habib | 1035 | 6-1; 6-1 |
|  |  |
62nd Gene Jung Whittier Midwinter Tourn., January 19, 2013
 68th Annual Fullerton Jr. Tourn., February 2, 2013
 10th Annual Ramada Jr. Open Tourn., February 9, 2013
 4th Cerritos Reg. Park Open Tourn., February 16, 2013
 Andulka Park Spring Open Chmps., March 23, 2013
 Woodbridge TC Spring Jr. Open, April 13, 2013
 14th Monterey CCC Open Classic, April 20, 2013
 29th Anaheim TC Spring Open Tourn., April 27, 2013
 34th Lakewood Spring Jr. Open Tourn., May 4, 2013
 * The ranking calculation does not count this match.
| |  |  | |