| Shuichi Sasaki | Chukyo
23-Mar-24,
Sacred Gaze |
| Shun Ishizaki | Funabashi
13-Feb-26,
Bravoure |
| Shylie Williams | Port Lincoln
27-Feb-26,
My Mate Sonny |
| Sian Brooke | Ludlow
21-Mar-25,
Miladygrace |
| Siboniso Ngcobo | Greyville
28-Feb-26,
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
25-Feb-26,
Obviously Good |
| Silas Shaw | Remington Park
14-Dec-23,
Gertie |
| Sileas Green | Rockhampton
24-Feb-26,
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
28-Feb-26,
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
28-Feb-26,
Amaroo Star |
| Simon Barrass | Ascot
15-Nov-25,
Cosmic Chaos |
| Simon Bates | Morphettville
07-Feb-26,
Meadows Flyer |
| Simon Buechler | Sunland Park
16-Feb-26,
Apremont |
| Simon Callaghan | Santa Anita
02-Mar-26,
Getting Closer |
| Simon Casey | Dubbo
15-Feb-26,
Nevermista |
| Simon Crisford | Keeneland
05-Oct-25,
Choisya |
| Simon Cross | Cheltenham
06-May-23,
Dogon |
| Simon Drewitt | Port Lincoln
27-Feb-26,
Me Name's Kenny |
| Simon Earle | Uttoxeter
10-Jul-24,
Bella Madonna |
| Simon Edwards | Ludlow
15-Jan-26,
Shuile Warrior |
| Simon Elix | Bundaberg
06-Dec-25,
The Storm |
| Simon Foster | Tuncurry
21-Feb-26,
Our Miracle Girl |
| Simon Gebert | Horsham
24-Feb-26,
Thunder Park |
| Simon Grimson | Warwick
23-Feb-26,
Belistic Man |
| Simon Hampton | |
| Simon Hobson | Santa Anita
21-Feb-26,
Dark Marcus |
| Simon Hunter | Ipswich
01-Jul-16,
Red Hombre |
| Simon J Wilson | Waipukurau
15-Feb-26,
Plain Sailing |
| Simon J. Buechler | Sunland Park
02-Mar-26,
Sidewinder Slick |
| 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 | Caulfield
18-Oct-25,
West Star |
| Simon Morrish | Sportsbet-Ballarat
28-May-23,
Stretto |
| Simon Proudfoot | Ascot
30-Apr-25,
Mahaleo |
| Simon Ryan | Ballarat
22-Feb-26,
Thaimor |
| Simon Zahra | Flemington
28-Feb-26,
Onavuitton |
| Simone Ferchie | Terang
01-Jan-25,
Union Warrior |
| Simone Manne | Hanging Rock
26-Jan-26,
Dionisio |
| Simone Walker | Yarra Valley
07-Feb-26,
Mywifeisnothere |
| Simonovich Carlos | San Isidro
01-Jul-23,
Paso De Largo |
| Sir M Todd | Sandown
26-Apr-24,
Tasman Bay |
| Sir Mark Prescott | Southwell
01-Mar-26,
Chantelle |
| Sir Michael Stoute | Chelmsford City
01-Nov-24,
Imitate |
| Sixto Almaraz | |
| Skip Einhorn | |
| Sky Ballinger | Geraldton
19-Feb-26,
Hot Nova |
| Smiley Chan | Yarra Valley
21-Feb-26,
Ah Hei |
| Sofia M M | Valparaiso Sporting Club
15-May-25,
Costamia |
| Somraj Singh | Laurel Park
02-Mar-26,
Cap Com |