| Siboniso Ngcobo | Greyville
09-Dec-25,
Eventidor |
| Sid Attard | Woodbine
17-May-25,
Zipfire |
| Sidney Hatch | Gunnedah
06-Jul-12,
Del Potro |
| Sidney Roberts | Nowra
20-Oct-19,
Real Machine |
| Sigrid Carr | Launceston
10-Dec-25,
Thespian Waters |
| Silas Shaw | Remington Park
14-Dec-23,
Gertie |
| Sileas Green | Rockhampton
10-Dec-25,
Canny Be Better |
| Silverio Santillan | San Isidro
06-Jan-25,
Punta De Gondola |
| Silvia Fernandez | San Isidro
09-Jan-25,
Megagot |
| Silvia I Fernandez | Palermo
19-May-23,
Intent |
| Silvia Rojo | San Isidro
01-Apr-24,
Cerrito Pinon |
| Silvino Ramirez | Penn National
12-Dec-25,
Sofster |
| Silvio Dadamo | San Isidro
22-Jul-24,
New Prize |
| Simar A Alvarez | Palermo
28-May-23,
Muequita Camp |
| Simar Alvarez | San Isidro
11-Jul-24,
Che Bravo |
| Simon A Miller | Ascot
13-Dec-25,
Zephyra |
| Simon Barrass | Ascot
15-Nov-25,
Cosmic Chaos |
| Simon Bates | Murray Bdge
11-Oct-25,
Meadows Flyer |
| Simon Buechler | Sunland Park
21-Mar-25,
Honky Tonk Honey |
| Simon Casey | Randwick
13-Dec-25,
Beaumista |
| Simon Crisford | Keeneland
05-Oct-25,
Choisya |
| Simon Cross | Cheltenham
06-May-23,
Dogon |
| Simon Drewitt | Port Lincoln
05-Dec-25,
Diamente Tagliato |
| Simon Earle | Uttoxeter
10-Jul-24,
Bella Madonna |
| Simon Edwards | Huntingdon
08-Oct-25,
Artic Sting |
| Simon Elix | Bundaberg
06-Dec-25,
The Storm |
| Simon Foster | Murwillumbah
12-Dec-25,
Brave Jet |
| Simon Gebert | Donald
16-Nov-25,
Thunder Park |
| Simon Grimson | Aquis Park Gold Coast Poly
29-Nov-25,
Monaroma |
| Simon Hampton | |
| Simon Hobson | Del Mar
08-Nov-25,
Crypto Ride |
| Simon Hunter | |
| Simon Hunter | Ipswich
01-Jul-16,
Red Hombre |
| Simon J Wilson | Wanganui
29-Nov-25,
Plain Sailing |
| Simon J. Buechler | |
| Simon Kurz | Sunshine Coast
03-Dec-23,
Minicourt |
| Simon Lee | Sale
12-Jun-25,
Vandalanski |
| Simon Mahony | Geelong Synthetic
02-Sep-11,
Apparent Wind |
| Simon Miller | Ascot
15-Nov-25,
Twisted Steel |
| Simon Morrish | Sportsbet-Ballarat
28-May-23,
Stretto |
| Simon Proudfoot | Ascot
30-Apr-25,
Mahaleo |
| Simon Ryan | Pakenham
13-Dec-25,
Post Impressionist |
| Simon Zahra | Werribee
15-Dec-25,
Regina D'oro |
| Simone Ferchie | Terang
01-Jan-25,
Union Warrior |
| Simone Manne | Stony Creek
07-Dec-25,
Dionisio |
| Simone Walker | Cranbourne
05-Dec-25,
Auckland |
| Simonovich Carlos | San Isidro
01-Jul-23,
Paso De Largo |
| Sir M Todd | Sandown
26-Apr-24,
Tasman Bay |
| Sir Mark Prescott | |
| Sir Mark Prescott | Wolverhampton
14-Dec-25,
Sheriff's Court |
| Sir Michael Stoute | Chelmsford City
01-Nov-24,
Imitate |
| Sixto Almaraz | |
| Skip Einhorn | |
| Sky Ballinger | Geraldton
06-Dec-25,
Hot Chatter |
| Smiley Chan | Werribee
15-Dec-25,
Best Time |
| Sofia M M | Valparaiso Sporting Club
15-May-25,
Costamia |
| Somraj Singh | Laurel Park
15-Dec-25,
Ready For Magic |
| Son Jig | Busan
09-May-25,
Homyeong Shinhwa |
| Son Pyo | Seoul
26-Apr-25,
Soon Like |
| Song Moon Gil | Seoul
17-May-25,
Yeongwon Poten |