| | WSHJA Horse Roster | 2013 |
| | 382 horses current as of 5/20/2013 |
| | Horse | USEF No. | Owner/Lessee | Sex | Height | Program | Effective |
| | A |
| | AA Better Bee | Sarina Singh | Mare | 14.1 | National | 12/1/2012 |
| | Aftershock | 4913044 | Ashley Wren | Gelding | 18. | National | 2/25/2013 |
| | Ain't Misbehavin | 4830964 | Rachael Davis | Mare | 14.1 1/2 | State | 3/25/2013 |
| | Airtight Alibi | 4886460 | Holly Hutchison | Gelding | 15.3 | National | 1/7/2013 |
| | All In Fun | 4538844 | Sophie Pelzer | Gelding | 13.1 1/2 | State | 3/25/2013 |
| | All Talk | 4956644 | Hannah Morris | Mare | 16.1 | National | 12/31/2012 |
| | Amigo | 5051838 | Amy Berman | Gelding | 16.2 | National | 1/7/2013 |
| | Ann Arbor | 4901990 | Amy Berman | Mare | 16.1 | National | 1/7/2013 |
| | Antebellum | 5125688 | Madison Morton | Mare | 17.0 | State | 4/8/2013 |
| | Anthem | 5097360 | Shannon Hunnex | Gelding | 15.3 7/8 | State | 3/4/2013 |
| | Aragon | 4781069 | Karen Badgley | Gelding | 16. | National | 1/28/2013 |
| | Artic Moon | 5140136 | Gayl Russell | Gelding | 15.3 | National | 2/11/2013 |
| | Askaban | 5262605 | Melanie Kuechle | Gelding | 16.1 | National | 2/25/2013 |
| | Askaro | 5165165 | Megan Hilton | Gelding | 15. | National | 2/25/2013 |
| | Autobot | 5228827 | Fiona Boardman | Gelding | 16.2 | National | 2/4/2013 |
| | Avant | 5179492 | Jocelyn Krabbenschmidt | Gelding | 16.2 | National | 12/1/2012 |
| | B |
| | Bakers Dozen | 5181704 | Brooke Riordan | Gelding | 16.2 | State | 2/18/2013 |
| | Ballantrae | 4763128 | Shelly Kerron | Gelding | 16.0 | State | 12/1/2012 |
| | Baltaine | 5190598 | Julia Seibel | Gelding | 16.6 | State | 3/4/2013 |
| | Barcelona MC | 4965159 | Hayley McCracken | Mare | 16.2 | State | 2/18/2013 |
| | Bayardo | 4952353 | Margot Nelson | Gelding | 15.3 7/8 | National | 4/1/2013 |
| | Bayshore | 5087519 | Jamie Smith | Gelding | National | 4/1/2013 |
| | BB Isadora | 5135461 | Kristan Garrett | Mare | 16.2 | National | 12/31/2012 |
| | BB Orphan Andy | 4830973 | Danielle Bogardus | Gelding | 16.2 | National | 3/18/2013 |
| | BC Dream Catcher | 4940163 | Jill Todd | Gelding | 15.3 | State | 4/1/2013 |
| | Beckham | 5006672 | Jennifer Gates | Gelding | 12/17/2012 |
| | Bedazzle | 5203475 | Jasmin Jimenez | Mare | 13.1 | National | 2/18/2013 |
| | Bella Noir | 4614126 | Corinna Bybee | Mare | 16.0 | National | 1/14/2013 |
| | Bellagio | 5271081 | Erin Heffernan | Gelding | National | 3/11/2013 |
| | Bellamae | 5235326 | Andrea Schroeder | Mare | 16. | National | 1/28/2013 |
| | Belle of the Ball | 5023228 | Rachael Davis | Mare | 16.1 | State | 3/25/2013 |
| | Benlea Aristocrat | 4034371 | Annika Singh | Gelding | 13.1 | National | 5/6/2013 |
| | Bertolucci | 5195670 | Robin Kellogg | Gelding | National | 12/17/2012 |
| | Besito | 4573799 | Kayleigh Dobson | Mare | 16.0 1/4 | State | 2/25/2013 |
| | Best Man | 4753701 | Julie Nordstrom | Gelding | 15.3 7/8 | National | 12/1/2012 |
| | Big D | 5108628 | Wesley Fox | Gelding | 15.3 | National | 12/31/2012 |
| | Big News | 5246620 | Reyna Stevenson | Gelding | 17. | National | 2/18/2013 |
| | Big Sur | 4830974 | Carly Pearl-Sacks | Gelding | 17.3 | State | 2/4/2013 |
| | Black Pearl | 5066755 | Ashley Wasnick | Gelding | 16.3 | National | 1/14/2013 |
| | Black Tie Affair | 5155053 | Madeleine Strain | Gelding | 16.2 | National | 4/1/2013 |
| | Bling It On | 5234059 | Anne Stevenson | Gelding | 17.1 | National | 2/18/2013 |
| | Bongo | 5269123 | Susan Bernard | Gelding | 16.3 | National | 4/8/2013 |
| | Bouvier | 4824908 | MacKenzie Korican | Mare | 15.3 | National | 2/4/2013 |
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