| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| HAYDON RADIAL - HSH | Mare | BROWN | 34700 | 01/10/1975 | Stud Book | Deceased |
| HAYDON RADIANCE - HSH | Mare | CHESTNUT | F145761 | 13/10/1998 | Foal Recorded | Not Eligible |
| HAYDON RAIN SHADOW - HSH | Mare | CHESTNUT | 184695 | 24/10/2006 | Stud Book | Eligible |
| HAYDON RAINDROP - HSH | Mare | BAY | 186259 | 12/10/2007 | Stud Book | Eligible |
| HAYDON RAINGUN - HSH | Unknown | CHESTNUT | F115434 | 17/09/1989 | Foal Recorded | Not Eligible |
| HAYDON RAINSTORM - HSH | Mare | BAY | 129660 | 22/02/1995 | Stud Book | Deceased |
| HAYDON RAMONA - HSH | Mare | BROWN | 53106 | 25/08/1976 | Stud Book | Not Eligible |
| HAYDON RAYDEE - HSH | Stallion | BAY | F36931 | 26/11/1983 | Foal Recorded | Not Eligible |
| HAYDON RAYGUN - HSH | Stallion | BLACK | 115432 | 09/08/1989 | Stud Book | Deceased |
| HAYDON RAYLINA - HSH | Mare | BROWN | 66926 | 03/11/1981 | Stud Book | Deceased |
| HAYDON READY FOR LIFE | Mare | CHESTNUT | B2-231867 | 01/09/2002 | Breeding Purposes Only - Second Cross | Not Eligible |
| HAYDON REBECCA - HSH | Mare | BROWN | 142373 | 18/10/1997 | Stud Book | Deceased |
| HAYDON REDI RAY | Gelding | BROWN | 11681 | 01/08/1960 | Stud Book | Deceased |
| HAYDON REDRAW - HSH | Stallion | BROWN | 144304 | 23/10/1998 | Stud Book | Deceased |
| HAYDON REGINA - HSH | Mare | BLACK | 177157 | 15/10/2004 | Stud Book | Eligible |
| HAYDON RELIC - HSH | Gelding | BROWN | 118738 | 10/09/1990 | Stud Book | Not Eligible |
| HAYDON REO - HSH | Gelding | BAY | F236786 | 14/11/2014 | Foal Recorded | Not Eligible |
| HAYDON RESPONSE - HSH | Stallion | BROWN | F33721 | 31/08/1982 | Foal Recorded | Not Eligible |
| HAYDON REWINGA | Gelding | BROWN | 11680 | 01/01/1969 | Stud Book | Deceased |
| HAYDON REX - HSH | Gelding | BROWN | 220490 | 19/10/1987 | Stud Book | Deceased |
| HAYDON RHAPSODY - HSH | Mare | BROWN | C1-264206 | 06/09/2022 | First Cross | Eligible |
| HAYDON RICO - HSH | Stallion | BAY | 191262 | 14/11/2009 | Stud Book | Not Eligible |
| HAYDON RIFLEMAN - HSH | Gelding | BROWN | 115431 | 05/08/1989 | Stud Book | Deceased |
| HAYDON RINGLET - HSH | Mare | CHESTNUT | 53102 | 02/09/1976 | Stud Book | Deceased |
| HAYDON ROBIN - HSH | Mare | BROWN | 240643 | 17/09/2015 | Stud Book | Eligible |
| HAYDON ROBINA - HSH | Mare | BROWN | 158060 | 21/08/2000 | Stud Book | Not Eligible |
| HAYDON ROMANY - HSH | Mare | BROWN | 100020 | 17/11/1986 | Stud Book | Deceased |
| HAYDON ROSA - HSH | Mare | CHESTNUT | 142376 | 28/11/1997 | Stud Book | Deceased |
| HAYDON ROSALIE - HSH | Mare | BROWN | 59517 | 28/08/1979 | Stud Book | Deceased |
| HAYDON ROSARA - HSH | Mare | BROWN | 248895 | 26/10/2017 | Stud Book | Eligible |
| HAYDON ROSE BUD - HSH | Mare | CHESTNUT | F129658 | 22/10/1994 | Foal Recorded | Not Eligible |
| HAYDON ROSE BUSH - HSH | Mare | BROWN | 137014 | 30/11/1996 | Stud Book | Not Eligible |
| HAYDON ROSE JEWEL - HSH | Mare | BLACK | 197750 | 03/10/2011 | Stud Book | Not Eligible |
| HAYDON ROSEANNA - HSH | Mare | BROWN | 100008 | 28/08/1985 | Stud Book | Not Eligible |
| HAYDON ROSEBOWL - HSH | Mare | CHESTNUT | 162296 | 08/08/2001 | Stud Book | Deceased |
| HAYDON ROSECUP - HSH | Mare | BROWN | 162297 | 06/11/2001 | Stud Book | Deceased |
| HAYDON ROSEDROP - HSH | Mare | BROWN | 137017 | 16/01/1997 | Stud Book | Eligible |
| HAYDON ROSEINDA - HSH | Mare | BLACK | 115440 | 04/02/1990 | Stud Book | Not Eligible |
| HAYDON ROSELEAF - HSH | Mare | BAY | 191260 | 08/10/2009 | Stud Book | Eligible |
| HAYDON ROSELLA - HSH | Mare | BAY | F123046 | 20/09/1992 | Foal Recorded | Not Eligible |
| HAYDON ROSETTE - HSH | Mare | BAY | 111838 | 07/10/1988 | Stud Book | Deceased |
| HAYDON ROULETTE - HSH | Stallion | BROWN | 139511 | 09/11/1997 | Stud Book | Eligible |
| HAYDON RUBY - HSH | Mare | CHESTNUT | 146463 | 04/10/1998 | Stud Book | Eligible |
| HAYDON RUBY - HSH | Mare | BROWN | 875 | 01/08/1965 | Stud Book | Deceased |
| HAYDON RUBY II - HSH | Mare | CHESTNUT | 153273 | 14/10/1999 | Stud Book | Deceased |
| HAYDON RUBY TUESDAY - HSH | Mare | BAY | 191261 | 01/09/2009 | Stud Book | Eligible |
| HAYDON RUDOLPH - HSH | Gelding | BROWN | 129666 | 24/12/1994 | Stud Book | Not Eligible |
| HAYDON RUGOSA - HSH | Mare | BAY/BROWN | 139508 | 03/10/1997 | Stud Book | Deceased |
| HAYDON RUMBA - HSH | Mare | BLACK | 187084 | 08/10/2007 | Stud Book | Eligible |
| HAYDON RUSH - HSH | Stallion | BLACK | 67761 | 09/12/1981 | Stud Book | Deceased |
| HAYDON SABLE - HSH | Mare | BROWN | 100017 | 10/09/1986 | Stud Book | Eligible |
| HAYDON SAFARI - HSH | Gelding | BAY | 177164 | 12/10/2004 | Stud Book | Not Eligible |
| HAYDON SAFFRON JEWEL - HSH | Mare | BAY | 194876 | 24/09/2010 | Stud Book | Eligible |
| HAYDON SAILS | Mare | BAY | 6437 | 01/08/1962 | Stud Book | Deceased |
| HAYDON SALINA - HSH | Mare | BLACK | 111834 | 26/08/1988 | Stud Book | Not Eligible |
| HAYDON SALSA - HSH | Mare | BROWN | 240644 | 28/08/2015 | Stud Book | Eligible |
| HAYDON SAMBA - HSH | Mare | BROWN | 240645 | 30/11/2015 | Stud Book | Eligible |
| HAYDON SAPHIRE - HSH | Mare | BROWN | 885 | 01/08/1949 | Stud Book | Deceased |
| HAYDON SATELLITE (AUS) - HSH | Gelding | CHESTNUT | 184326 | 22/10/2006 | Stud Book | Not Eligible |
| HAYDON SATURN - HSH | Stallion | BAY | 188626 | 21/09/2008 | Stud Book | Eligible |
| HAYDON SCENT - HSH | Mare | BAY | 144303 | 24/01/1999 | Stud Book | Eligible |
| HAYDON SCUD - HSH | Stallion | CHESTNUT | F153278 | 04/12/1999 | Foal Recorded | Not Eligible |
| HAYDON SECRET LASS - HSH | Mare | BAY | 120934 | 24/10/1989 | Stud Book | Deceased |
| HAYDON SECRET NIGHT - HSH | Mare | BROWN | 194875 | 26/08/2010 | Stud Book | Eligible |
| HAYDON SHAMROCK - HSH | Stallion | BAY | F27648 | 17/09/1980 | Foal Recorded | Not Eligible |
| HAYDON SHAQUANA - HSH | Mare | BROWN | 144309 | 16/10/1998 | Stud Book | Eligible |
| HAYDON SHIMMER - HSH | Mare | BROWN | 233241 | 19/11/2013 | Stud Book | Eligible |
| HAYDON SHINE - HSH | Mare | CHESTNUT | 184696 | 20/12/2006 | Stud Book | Eligible |
| HAYDON SHINE II - HSH | Mare | CHESTNUT | C1-259313 | 20/02/2022 | First Cross | Eligible |
| HAYDON SHOW CASE - HSH | Mare | BAY | 129657 | 15/10/1994 | Stud Book | Not Eligible |
| HAYDON SHOWER - HSH | Mare | CHESTNUT | 171362 | 05/11/2003 | Stud Book | Eligible |
| HAYDON SIESTA - HSH | Stallion | BROWN | 197737 | 10/10/2011 | Stud Book | Eligible |
| HAYDON SIGNATURE - HSH | Gelding | BAY | 171364 | 15/09/2003 | Stud Book | Deceased |
| HAYDON SILENT NIGHT - HSH | Mare | BROWN | 229703 | 20/10/2012 | Stud Book | Not Eligible |
| HAYDON SILVER CHARM - HSH | Mare | BROWN | 118494 | 09/11/1991 | Stud Book | Deceased |
| HAYDON SIMANDA - HSH | Mare | BAY | 220491 | 28/10/1987 | Stud Book | Not Eligible |
| HAYDON SKY JEWEL - HSH | Mare | BROWN | C1-246805 | 15/09/2007 | First Cross | Eligible |
| HAYDON SKYLIGHT - HSH | Stallion | BLACK | 142381 | 26/09/1997 | Stud Book | Not Eligible |
| HAYDON SKYLINE - HSH | Gelding | BROWN | 182283 | 28/09/2005 | Stud Book | Eligible |
| HAYDON SOLVITA | Mare | CHESTNUT | C2-246806 | 26/09/2015 | Second Cross | Eligible |
| HAYDON SONAR - HSH | Mare | BAY | 229701 | 01/10/2012 | Stud Book | Not Eligible |
| HAYDON SONIC - HSH | Stallion | BAY | 229707 | 06/11/2012 | Stud Book | Eligible |
| HAYDON SPANISH JET - HSH | Mare | BROWN | 229114 | 10/10/2004 | Stud Book | Eligible |
| HAYDON SPARKLE - HSH | Mare | CHESTNUT | 162308 | 17/12/2001 | Stud Book | Eligible |
| HAYDON SPARTACUS - HSH | Stallion | CHESTNUT | R-258904 | 22/09/2016 | Base Registry | Eligible |
| HAYDON SPECIAL JEWEL - HSH | Mare | BAY | 165592 | 02/12/2002 | Stud Book | Eligible |
| HAYDON STANZA - HSH | Gelding | BROWN | F233242 | 20/10/2013 | Foal Recorded | Deceased |
| HAYDON STAR | Mare | BAY | 886 | 01/08/1954 | Stud Book | Deceased |
| HAYDON STAR JEWEL - HSH | Mare | BROWN | 102117 | 27/08/1982 | Stud Book | Deceased |
| HAYDON STAR NIGHT - HSH | Mare | BROWN | 66932 | 25/10/1981 | Stud Book | Deceased |
| HAYDON STELLAR - HSH | Mare | BAY | 253242 | 16/10/2017 | Stud Book | Not Eligible |
| HAYDON STRATA | Mare | BROWN | 53110 | 08/09/1977 | Stud Book | Deceased |
| HAYDON SUMMIT - HSH | Stallion | BROWN | 184700 | 10/10/2006 | Stud Book | Eligible |
| HAYDON SUN CHARM - HSH | Mare | BAY | 106975 | 16/09/2002 | Stud Book | Eligible |
| HAYDON SUN DIAL - HSH | Mare | BAY | 123044 | 02/09/1992 | Stud Book | Deceased |
| HAYDON SUN DRAW - HSH | Mare | BAY | F146459 | 17/11/1998 | Foal Recorded | Not Eligible |
| HAYDON SUN FLOWER - HSH | Mare | BROWN | F134012 | 28/10/1995 | Foal Recorded | Not Eligible |
| HAYDON SUN GEM - HSH | Mare | BROWN | 125906 | 29/10/1993 | Stud Book | Not Eligible |
| HAYDON SUN GLOW - HSH | Mare | BROWN | F123050 | 29/12/1992 | Foal Recorded | Not Eligible |
| HAYDON SUN GUN - HSH | Stallion | CHESTNUT | 111833 | 21/08/1988 | Stud Book | Not Eligible |