| AA | Anglo-Arabian |
| AES | Anglo-European Studbook |
| HANN | Hannoverian |
| HOLST | Holsteiner |
| ISH | Irish Sport Horse |
| KWPN | Dutch Warmblood |
| Non-TB | Non-Thoroughbred |
| OLDBG | Oldenburg |
| SF | Selle Francais |
| SHBGB | Sport Horse of Great Britain |
| TB | Thoroughbred |
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