| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| SYLVIA VALE BARINGA - HSH | Gelding | BROWN | 137377 | 11/01/1999 | Stud Book | Not Eligible |
| SYLVIA VALE BACHELOR - HSH | Gelding | CHESTNUT | 122603 | 31/08/1993 | Stud Book | Not Eligible |
| SYLVIA VALE AZZURRA | Mare | CHESTNUT | 103852 | 21/10/1986 | Stud Book | Not Eligible |
| SYLVIA VALE AYR PLAY | Mare | CHESTNUT | C1-235878 | 05/11/2012 | First Cross | Eligible |
| SYLVIA VALE AVALON | Gelding | BLACK/CHESTNUT | C2-253315 | 27/09/2018 | Second Cross | Not Eligible |
| SYLVIA VALE ARUSHA | Mare | BAY | C2-253314 | 07/10/2017 | Second Cross | Eligible |
| SYLVIA VALE ARATULA - HSH | Mare | CHESTNUT | 235877 | 30/09/2014 | Stud Book | Not Eligible |
| SYLVIA VALE ARAMAC - HSH | Gelding | BROWN | 235876 | 16/10/2013 | Stud Book | Not Eligible |
| SYLVIA VALE ARABELLA | Mare | BLACK | 253313 | 02/11/2018 | Stud Book | Not Eligible |
| SYLVIA VALE ANGEL DOC | Mare | CHESTNUT | 131898 | 21/10/1983 | Stud Book | Deceased |
| SYLVIA VALE AMARI | Mare | BLACK | 253312 | 19/11/2017 | Stud Book | Eligible |
| SYLVIA VALE ALLIRA | Mare | BAY | 195204 | 14/10/2010 | Stud Book | Not Eligible |
| SYLVIA VALE ALLAMBIE | Gelding | BROWN | 193436 | 25/09/2009 | Stud Book | Eligible |
| SYLVIA VALE ACRES REFLECT | Gelding | CHESTNUT | 198783 | 14/01/2012 | Stud Book | Not Eligible |
| SYLVIA - HSH | Mare | BLACK | 13985 | 12/01/1970 | Stud Book | Deceased |
| SYLVESTERS MIDNIGHT DESTINY | Gelding | BLACK | 248227 | 20/12/2015 | Stud Book | Eligible |
| SYLVESTERS MIDNIGHT BLUE - HSH | Stallion | BLACK | 243067 | 20/12/2009 | Stud Book | Eligible |
| SYLVESTERS MAHOGANY - HSH | Mare | BROWN | 243064 | 01/11/1993 | Stud Book | Eligible |
| SYLVESTERS FEATHER FOOT - HSH | Mare | BLACK | 243066 | 01/10/2009 | Stud Book | Eligible |
| SYLVESTERS BLACK MAGIC - HSH | Mare | BLACK | 243065 | 01/10/2006 | Stud Book | Eligible |
| SYLVESTER PRINCESS | Mare | BAY | 552 | 01/08/1961 | Stud Book | Deceased |
| SYLVESTER LADY | Mare | BAY | 551 | Stud Book | Deceased | |
| SYLVESTER | Gelding | BAY | 10481 | Stud Book | Deceased | |
| SYLVERTON SERENE | Mare | PALOMINO | 34862 | 06/09/1975 | Stud Book | Not Eligible |
| SYLVERTON CINDY | Mare | PALOMINO | 11570 | 04/10/1959 | Stud Book | Deceased |
| SYLVER PEWTER | Mare | GREY | 29415 | 18/09/1969 | Stud Book | Deceased |
| SYLVER BIG ABBEY | Stallion | BROWN/GREY | F17778 | 29/11/1978 | Foal Recorded | Not Eligible |
| SYLVANIA SUNGARRY | Mare | CHESTNUT | 54330 | 01/09/1972 | Stud Book | Deceased |
| SYLVANIA STEPHANIE | Mare | BROWN | 75689 | 01/09/1983 | Stud Book | Deceased |
| SYLVANIA STARSTRUCK | Gelding | BAY/BROWN | 160291 | 25/11/2002 | Stud Book | Not Eligible |
| SYLVANIA SHREDDER - HSH | Gelding | BAY/BROWN | 137684 | 31/10/1998 | Stud Book | Not Eligible |
| SYLVANIA MIA | Mare | CHESTNUT | 160288 | 22/12/2001 | Stud Book | Not Eligible |
| SYLVANIA GOLD PRIORITY | Mare | CHESTNUT | C1-228777 | 24/09/2007 | First Cross | Eligible |
| SYLVANIA ESPRIT - HSH | Mare | CHESTNUT | 148093 | 17/08/2000 | Stud Book | Deceased |
| SYLVANIA ELLE - HSH | Mare | BROWN/BLACK | 137697 | 25/11/1999 | Stud Book | Deceased |
| SYLVANIA DOOGAL | Gelding | CHESTNUT | 160289 | 25/01/2002 | Stud Book | Not Eligible |
| SYLVANIA ARTEMIS | Mare | CHESTNUT | 160286 | 21/02/2001 | Stud Book | Not Eligible |
| SYLVANDMID - HSH | Mare | CHESTNUT | 53992 | 23/10/1975 | Stud Book | Not Eligible |
| SYLVANDALE STARLIGHT | Mare | PALOMINO | 12339 | 02/09/1970 | Stud Book | Deceased |
| SYLVANDALE SOMERSET PRIDE | Mare | BAY | 24539 | 01/10/1972 | Stud Book | Not Eligible |
| SYLVANDALE SILVER SAPPHIRE | Mare | PALOMINO | 8094 | 02/10/1967 | Stud Book | Deceased |
| SYLVANDALE SILVER DESIREE - HSH | Mare | PALOMINO | 9877 | 26/09/1970 | Stud Book | Deceased |
| SYLVANDALE MOOTY | Mare | CHESTNUT | 8093 | Stud Book | Deceased | |
| SYLVANDALE IDLE CHANCE | Mare | BROWN | 21128 | 21/10/1968 | Stud Book | Deceased |
| SYLVANDALE GAY QUEEN | Mare | BAY | 21127 | 15/11/1968 | Stud Book | Deceased |
| SYLVANDALE DUNOLA | Mare | BAY | 21129 | 28/08/1968 | Stud Book | Deceased |
| SYLVANDALE CELESTE - HSH | Mare | BAY | 6793 | 01/08/1965 | Stud Book | Deceased |
| SYLVANDALE BLUE BELL | Mare | GREY | 21130 | 23/10/1969 | Stud Book | Deceased |
| SYLVAN SANDY | Gelding | DUN | 59210 | 28/08/1978 | Stud Book | Not Eligible |
| SYLVAN RUSTY | Gelding | CHESTNUT | F26829 | 02/09/1979 | Foal Recorded | Not Eligible |
| SYLVAN RED | Gelding | CHESTNUT | 54759 | Stud Book | Not Eligible | |
| SYLVAN LEE | Mare | CHESTNUT | 59208 | 26/08/1978 | Stud Book | Not Eligible |
| SYLVAN JEWEL | Mare | CHESTNUT | 59207 | 04/08/1977 | Stud Book | Not Eligible |
| SYLVAN GRACE | Mare | DUN | F26828 | 26/10/1979 | Foal Recorded | Not Eligible |
| SYLVAN FRILL | Mare | BLACK | 54758 | Stud Book | Not Eligible | |
| SYLVAN DUNCAN | Stallion | CHESTNUT | F32250 | 22/10/1981 | Foal Recorded | Not Eligible |
| SYLVAN BUSTER | Gelding | BROWN | 59209 | 30/07/1976 | Stud Book | Not Eligible |
| SYLVAN BUDDY | Stallion | CHESTNUT | 54756 | Stud Book | Not Eligible | |
| SYLVAN BRANDY | Stallion | BAY | F34092 | 27/10/1982 | Foal Recorded | Not Eligible |
| SYLVAN AMBER | Mare | CHESTNUT | 54757 | Stud Book | Not Eligible | |
| SYLVA SPRINGS FIRECRACKER | Mare | BUCKSKIN | C1-234849 | 15/12/2012 | First Cross | Not Eligible |
| SYGNET | Gelding | ROAN | 17782 | Stud Book | Deceased | |
| SYDS SMOKEN ABDUL | Gelding | BLACK | 232726 | 18/09/2011 | Stud Book | Not Eligible |
| SYDNEY TOUR | Mare | BLACK | 77930 | 02/08/1990 | Stud Book | Deceased |
| SYDNEY BAY | Mare | BAY | C2-235499 | 01/08/2001 | Second Cross | Deceased |
| SYDNEY | Gelding | BROWN | 49808 | 01/09/1968 | Stud Book | Deceased |
| SYDMOUTH VALLEY SUNBIRD | Mare | BAY | 43219 | 24/12/1974 | Stud Book | Not Eligible |
| SYDMOUTH VALLEY RUBY | Mare | BAY | 43220 | 01/01/1969 | Stud Book | Deceased |
| SYDMOUTH VALLEY GUNDAGUY | Stallion | CHESTNUT | F27089 | 06/11/1980 | Foal Recorded | Not Eligible |
| SYDMOUTH VALLEY FRISBY | Mare | CHESTNUT | 43628 | 01/01/1974 | Stud Book | Not Eligible |
| SYDMOUTH VALLEY BROWN GOLD | Gelding | BROWN | 49027 | Stud Book | Not Eligible | |
| SYDMOUTH VALLEY AMBER | Mare | BAY | 54605 | 03/08/1976 | Stud Book | Not Eligible |
| SYDEVA ZANZIBAR | Stallion | BROWN/GREY | F10750 | 10/02/1978 | Foal Recorded | Not Eligible |
| SYDEVA TWIGGY | Mare | BROWN | 16848 | 01/01/1966 | Stud Book | Deceased |
| SYDEVA MERRYLAD | Stallion | BROWN | F18359 | 16/04/1979 | Foal Recorded | Not Eligible |
| SYDEVA DIAMONDS AND RUST | Mare | BROWN | F40439 | 11/11/1984 | Foal Recorded | Not Eligible |
| SYDEVA CHINOOK | Mare | CHESTNUT | F10749 | 29/09/1977 | Foal Recorded | Not Eligible |
| SYDEVA CAT BALLOU | Mare | BAY | 16849 | 01/01/1967 | Stud Book | Deceased |
| SYDABINO | Gelding | BROWN | 66981 | 15/08/1977 | Stud Book | Not Eligible |
| SYD RIO | Gelding | BAY | 41452 | 01/01/1966 | Stud Book | Deceased |
| SYBIL | Mare | CHESTNUT | 9107 | Stud Book | Deceased | |
| SYBERINA | Mare | CHESTNUT | 9242 | Stud Book | Deceased | |
| SYACK | Mare | BAY | 52569 | 12/11/1977 | Stud Book | Not Eligible |
| SWORD QUEEN | Mare | BAY | 29641 | 25/08/1969 | Stud Book | Deceased |
| SWIVEL UP - HSH | Gelding | TAFFY | 186970 | 02/10/2002 | Stud Book | Not Eligible |
| SWIVEL | Mare | CHESTNUT | 41867 | Stud Book | Not Eligible | |
| SWITCH ON | Mare | CHESTNUT | 17602 | 01/10/1971 | Stud Book | Deceased |
| SWITCH | Mare | GREY | 31952 | Stud Book | Not Eligible | |
| SWISS LASS | Mare | BAY | 38062 | 06/12/1971 | Stud Book | Deceased |
| SWISS CHALET KUNAMA SUPREME | Mare | PALOMINO | 17922 | 01/10/1968 | Stud Book | Deceased |
| SWISH | Mare | BLACK | 29639 | 10/11/1974 | Stud Book | Not Eligible |
| SWIRL | Mare | CHESTNUT | 3871 | Stud Book | Deceased | |
| SWINGTIME HEATH | Gelding | BROWN | 11391 | Stud Book | Deceased | |
| SWINGS RED CHIEF | Gelding | CHESTNUT | 49359 | Stud Book | Not Eligible | |
| SWINGINGSHOVEL STAR | Mare | BLACK | 53023 | 01/08/1979 | Stud Book | Not Eligible |
| SWINGINGSHOVEL SAVAL | Mare | BAY | 53028 | 01/08/1968 | Stud Book | Deceased |
| SWINGINGSHOVEL SAILOR | Gelding | GREY | 53022 | 01/01/1976 | Stud Book | Not Eligible |
| SWINGINGSHOVEL PATTI - HSH | Mare | CHESTNUT | 53025 | 01/08/1970 | Stud Book | Deceased |
| SWINGINGSHOVEL MISTY | Mare | GREY | 53024 | 01/08/1970 | Stud Book | Deceased |
| SWINGINGSHOVEL MEG - HSH | Mare | CHESTNUT | 53026 | 01/08/1973 | Stud Book | Not Eligible |