| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| SIRSI LIL ASSASSIN | Mare | BLACK | 269512 | 29/12/2023 | Stud Book | Eligible |
| SISALANA ARROW | Gelding | BAY/PIED | 61023 | 01/09/1976 | Stud Book | Deceased |
| SISALANA BO L E BARS | Mare | BLACK/PIED | 68457 | 16/11/1980 | Stud Book | Deceased |
| SISALANA CHARMANE | Mare | CHESTNUT/PIED | 61128 | 01/01/1973 | Stud Book | Not Eligible |
| SISALANA CINDY | Mare | GREY | 61025 | 01/01/1968 | Stud Book | Deceased |
| SISALANA COPPER PRINCESS | Mare | CHESTNUT/PIED | 62663 | 12/03/1971 | Stud Book | Deceased |
| SISALANA DESERT ROSE | Mare | BAY | 61129 | 01/01/1969 | Stud Book | Deceased |
| SISALANA DUSTY ROCHELLE | Mare | BROWN | 62664 | 06/10/1975 | Stud Book | Not Eligible |
| SISALANA ECHO | Gelding | BAY/PIED | 61024 | 01/05/1975 | Stud Book | Deceased |
| SISALANA MANCHO MAN | Gelding | CHESTNUT/PIED | 65168 | 04/09/1979 | Stud Book | Not Eligible |
| SISALANA MIGHTY MISSY | Mare | CHESTNUT | 68204 | 16/12/1977 | Stud Book | Not Eligible |
| SISALANA MILLIE | Mare | CHESTNUT/PIED | 67045 | 01/08/1969 | Stud Book | Deceased |
| SISALANA NO SECRET | Mare | BROWN | 68205 | 12/02/1982 | Stud Book | Not Eligible |
| SISALANA SHIELA | Mare | BLACK | 61021 | 01/07/1968 | Stud Book | Deceased |
| SISALANA SLEEPY RODEO GIRL | Mare | CHESTNUT | 68206 | 19/02/1982 | Stud Book | Deceased |
| SISALANA SLEEPYS ANITA | Mare | BROWN | 61022 | 22/01/1978 | Stud Book | Deceased |
| SISALANA SNOWFLAKE | Mare | CHESTNUT | 61026 | 26/11/1978 | Stud Book | Deceased |
| SISKA | Mare | GREY | 13464 | 01/01/1966 | Stud Book | Deceased |
| SISKAS LASS | Mare | CHESTNUT | 21940 | 18/09/1970 | Stud Book | Deceased |
| SISS DAINTY | Mare | GREY | 77097 | 20/11/1984 | Stud Book | Not Eligible |
| SISSAN | Mare | CHESTNUT | 25065 | Stud Book | Not Eligible | |
| SISSONS BRANDY | Mare | CHESTNUT | 26201 | Stud Book | Not Eligible | |
| SISSY | Mare | CHESTNUT | 1300 | Stud Book | Deceased | |
| SISSY GIRL | Mare | BAY | 21365 | 05/09/1968 | Stud Book | Deceased |
| SISTER | Mare | CHESTNUT | 268 | 01/08/1962 | Stud Book | Deceased |
| SISTER AGATHA | Mare | BAY | BP-183104 | 12/10/1999 | Breeding Purposes Only - Stud Book | Not Eligible |
| SISTER BELLE | Mare | GREY | 32164 | 01/12/1972 | Stud Book | Not Eligible |
| SISTER BINE | Mare | BAY | 30335 | 01/08/1970 | Stud Book | Deceased |
| SISTER CAROL | Mare | CHESTNUT | 2203 | Stud Book | Deceased | |
| SISTER CINDY | Mare | BAY | 27269 | Stud Book | Not Eligible | |
| SISTER GERRARD | Mare | BLACK | 19507 | Stud Book | Deceased | |
| SISTER JANE | Mare | BROWN | 22540 | 18/09/1972 | Stud Book | Not Eligible |
| SISTER LEE | Mare | CHESTNUT | 38510 | 20/09/1971 | Stud Book | Deceased |
| SISTER LULU | Mare | BROWN | 3445 | Stud Book | Deceased | |
| SISTER MEG - HSH | Mare | BAY | 45023 | 01/11/1972 | Stud Book | Deceased |
| SISTER MONTY - FM HSH | Mare | BLACK | 3542 | 01/08/1956 | Stud Book | Deceased |
| SISTER ROBYN | Mare | CHESTNUT | 77655 | 13/10/1986 | Stud Book | Deceased |
| SISTER RUSH | Mare | BROWN | 41276 | 01/01/1971 | Stud Book | Deceased |
| SISTER SUE | Mare | GREY | 4791 | Stud Book | Deceased | |
| SISTER TEMBU | Mare | BAY | 19572 | Stud Book | Deceased | |
| SISTER TILQUIN | Mare | GREY/WHITE | 57083 | 02/06/1973 | Stud Book | Deceased |
| SISTERS DREAM | Mare | BROWN | 214127 | 25/01/1983 | Stud Book | Not Eligible |
| SISTERSHIP | Mare | PALOMINO | 37024 | Stud Book | Not Eligible | |
| SIT DOWN | Gelding | GREY | 75104 | 01/01/1981 | Stud Book | Not Eligible |
| SITRA LANDING | Mare | BAY | F28346 | 07/08/1980 | Foal Recorded | Not Eligible |
| SITT N DUCK | Stallion | CHESTNUT | R-257638 | 28/09/2019 | Base Registry | Eligible |
| SITTING | Mare | BROWN | B2-248975 | 16/10/2000 | Breeding Purposes Only - Second Cross | Not Eligible |
| SIVAD - HSH | Stallion | CHESTNUT | 40012 | 01/08/1973 | Stud Book | Deceased |
| SIVAM - HSH | Mare | BROWN | 46791 | 01/09/1977 | Stud Book | Deceased |
| SIVANKI | Mare | CHESTNUT | 32559 | Stud Book | Not Eligible | |
| SIX A PENNY | Mare | BAY | 38078 | 01/12/1970 | Stud Book | Deceased |
| SIX M DAWN MIST | Mare | GREY | 11924 | Stud Book | Deceased | |
| SIX M MY BINDI | Mare | BAY | 15342 | Stud Book | Deceased | |
| SIX S STUD CHARITY - HSH | Mare | BLACK | 116923 | 09/12/1990 | Stud Book | Deceased |
| SIX S STUD COMRADE - HSH | Stallion | BROWN | F17858 | 10/10/1978 | Foal Recorded | Not Eligible |
| SIX S STUD MATILDA - HSH | Mare | CHESTNUT | 121677 | 25/09/1990 | Stud Book | Not Eligible |
| SIX S STUD PIDGEON | Mare | BAY | 37043 | Stud Book | Deceased | |
| SIX S STUD RAYLIGHT - HSH | Mare | BAY | 58509 | 12/11/1977 | Stud Book | Not Eligible |
| SIX S STUD REFLECTION - HSH | Stallion | BLACK | 127792 | 15/02/1993 | Stud Book | Deceased |
| SIX S STUD SANDMAN - HSH | Stallion | DUN | F37753 | 21/09/1983 | Foal Recorded | Not Eligible |
| SIX S STUD STARDUST - HSH | Mare | BAY | 66260 | 19/10/1977 | Stud Book | Not Eligible |
| SIX S STUDS FLASH - HSH | Mare | BAY | 102646 | 21/11/1987 | Stud Book | Deceased |
| SIX S STUDS MINDY | Mare | BAY | 102645 | 14/09/1987 | Stud Book | Not Eligible |
| SIX S STUDS MISS TIFFANY - HSH | Mare | DUN | 102649 | 21/09/1986 | Stud Book | Deceased |
| SIX S STUDS NO DOUBT - HSH | Mare | DUN | F38140 | 10/09/1982 | Foal Recorded | Not Eligible |
| SIX S STUDS SCAMP - HSH | Mare | BAY | F31684 | 03/01/1982 | Foal Recorded | Not Eligible |
| SIX S STUDS TWO BOOTS - HSH | Gelding | BAY | 102647 | 13/11/1987 | Stud Book | Deceased |
| SIX S STUDS WARRIGUL - HSH | Gelding | BLACK | 102648 | 27/09/1986 | Stud Book | Not Eligible |
| SIXEMM COMMANDOS PRINCESS | Mare | CHESTNUT | 35413 | 10/11/1974 | Stud Book | Not Eligible |
| SIXEMM FOREVER AMBER - HSH | Mare | DUN | 34875 | 24/10/1975 | Stud Book | Deceased |
| SIXEMM GOLD SPINNER | Stallion | PALOMINO | F25556 | 25/09/1980 | Foal Recorded | Not Eligible |
| SIXEMM KOSMIC BRIGHT EYES | Mare | BAY | F20182 | 22/08/1979 | Foal Recorded | Not Eligible |
| SIXEMM KOSMIC DEBREE | Stallion | PALOMINO | 35414 | 23/10/1975 | Stud Book | Deceased |
| SIXEMM STATIS QUO - HSH | Gelding | CHESTNUT | 62979 | 16/11/1977 | Stud Book | Not Eligible |
| SIXHEARTS BARRISTER | Gelding | BAY | C1-263278 | 01/10/2022 | First Cross | Eligible |
| SIXHEARTS GOSSIP QUEEN | Mare | CHESTNUT | C1-260796 | 11/10/2015 | First Cross | Eligible |
| SIXHEARTS RHYTHM | Mare | BAY | 262990 | 16/11/2022 | Stud Book | Eligible |
| SIXHEARTS SOVEREIGN | Gelding | BAY | C1-260797 | 14/09/2021 | First Cross | Eligible |
| SIXMILE BLACK CADILLAC | Mare | BLACK | 258683 | 26/09/2018 | Stud Book | Not Eligible |
| SIXMILE SCARLET ACRES | Mare | BAY | 258655 | 18/09/2019 | Stud Book | Eligible |
| SIXMILE SUICIDE BLONDE | Mare | BUCKSKIN | R-259823 | 18/11/2020 | Base Registry | Not Eligible |
| SIXMOONS AUDREY | Mare | BAY | 259858 | 06/11/2019 | Stud Book | Eligible |
| SIXMOONS DARTANYON | Gelding | BLACK | 255164 | 26/02/2018 | Stud Book | Eligible |
| SIXMOONS INSTINCT | Gelding | BAY | 234424 | 10/10/2011 | Stud Book | Eligible |
| SIXMOONS PAULINE | Mare | CHESTNUT | C1-244778 | 24/12/2014 | First Cross | Eligible |
| SIXMOONS STEVIE | Mare | BAY | C1-259099 | 12/10/2018 | First Cross | Eligible |
| SIXS STUD JILLAROO | Mare | BLACK | F32969 | 10/09/1982 | Foal Recorded | Deceased |
| SIZZILIN GUNS | Mare | BROWN | 267188 | 22/12/2012 | Stud Book | Not Eligible |
| SIZZLER | Stallion | BROWN | 38484 | 20/10/1974 | Stud Book | Not Eligible |
| SIZZLIN CAT | Gelding | CHESTNUT | R-265358 | 27/12/2015 | Base Registry | Not Eligible |
| SIZZLING ACRES | Gelding | CHESTNUT | R-253544 | 09/10/2016 | Base Registry | Eligible |
| SIZZLING CLOVER | Mare | CHESTNUT | C2-232586 | 27/10/2011 | Second Cross | Not Eligible |
| SIZZLING OAK | Stallion | CHESTNUT | 146337 | 21/11/1997 | Stud Book | Deceased |
| SIZZLING PEP | Stallion | CHESTNUT | 185916 | 10/12/2007 | Stud Book | Eligible |
| SIZZLING SPUD | Gelding | CHESTNUT | R-265455 | 28/11/2022 | Base Registry | Not Eligible |
| SJAY MINDY | Mare | ROAN | 141464 | 05/12/1994 | Stud Book | Not Eligible |
| SJAY RYTHYM AND BLUES | Gelding | GREY/ROAN | 132756 | 19/11/1995 | Stud Book | Not Eligible |
| SJIHNAN TASHA | Mare | CHESTNUT | 28227 | Stud Book | Not Eligible | |
| SJIHRAN BAYADEIRA | Mare | BAY | FX3402 | 08/10/1975 | Foal Recorded | Not Eligible |
| SJIHRAN DARK GLEAM | Mare | BAY | 11034 | Stud Book | Deceased |