| John Salzman | Laurel Park
04-Nov-24,
Street Tough |
| John Sargent | Randwick
28-Feb-26,
Glad You Think So |
| John Schultz | Horseshoe Indianapolis
22-May-25,
No Proof |
| John Servis | Monmouth Park
18-Aug-25,
Mischief Maxey |
| John Sgavicchio | Delaware Park
20-Jul-25,
Magic Hooh |
| John Sharah | Newcastle
28-Feb-26,
Power Hungry |
| John Shelton | Coffs Harbour
01-Mar-26,
Mum Knows |
| John Shuler | Mountaineer
07-May-25,
Castle Review |
| John Simms | Woodbine
27-Apr-25,
Creativperformance |
| John Size | Sha Tin
01-Mar-26,
Beauty Eternal |
| John Slater | Woolamai
07-Feb-26,
Here's To Jane |
| John Smerdon | Aquis Park Gold Coast Poly
07-Feb-26,
Sistine Explorer |
| John Snow | Hastings Racecourse
30-Sep-24,
Texas Legacy |
| John Sprague | Coffs Harbour
01-Mar-26,
Aye Aye Skipper |
| John Stahlin | Charles Town
20-Oct-23,
Dance Lightly |
| John Stampalia | Belmont
27-May-22,
Radiant Blue |
| John Stanton | Sunshine Coast
07-Nov-17,
Coronation Trouble |
| John Staples | Woodbine
15-Dec-24,
I'm A Bourbon Girl |
| John Steffert | Te Aroha
19-Jun-16,
BACK IN BLACK |
| John Steinmetz | Goulburn
27-Feb-26,
Tendi |
| John Stephens | Monmouth Park
27-Aug-23,
Office Etiquette |
| John Steve Cannon | Turfway Park
20-Feb-26,
Coasting By |
| John Stinebaugh | Sunland Park
20-Jan-25,
Regal Intent |
| John Stubbs | Clifford Park
08-Jul-10,
Hesanothadollar |
| John Sutton | Toowoomba
14-Feb-26,
Roigard |
| John Swygart | |
| John Symons & Sheila Laxon | Wangaratta
28-Feb-26,
Lika Wreckin' Ball |
| John Symons & Sheila Laxon | Aquis Park Gold Coast
08-May-21,
Scratches |
| John T. Brown | Will Rogers Downs
03-Mar-26,
Morning Holiday |
| John T. Kirby | Penn National
28-Feb-26,
Tatum |
| John Tarin | Mount Gambier
28-Nov-25,
Moley Belle |
| John Taylor | Wodonga
07-Feb-20,
Hargy |
| John Tebbutt | Finger Lakes
25-May-23,
Luscious Lola |
| John Thom | Cranbourne
12-Dec-25,
Male Model |
| John Thomas | Gatton
01-Mar-26,
Rothweiler |
| John Thompson | Randwick
28-Feb-26,
El Castello |
| John Townley | Narrogin
20-Dec-25,
Tommy to Jack |
| John Trumper | Cambridge
28-Aug-24,
Talika |
| John Tyack | Brewarrina
15-May-21,
Sam |
| John Vandermyle | Port Augusta
26-Jun-16,
I Like Me |
| John Vinson | Gulfstream
05-Oct-24,
Siempre Valiente |
| John Volpe | Laurel Park
26-Apr-25,
Captain Cardo |
| John W Bell | Te Aroha
11-Feb-26,
Vistown |
| John W Collins | Beaudesert
28-Dec-13,
Beyond Imagination |
| John W Ramsey | Port Macquarie
08-Feb-26,
Pathelia |
| John W Thomas | Swan Hill
24-Aug-25,
Rustic Elegance |
| John W. Sadler | Santa Anita
01-Mar-26,
Red Cherry |
| John Wainwright | Fairmount Park
18-Jun-25,
Recause |
| John Wallace | Kilcoy
18-Feb-26,
Jeans |
| John Walters | Charles Town
29-Mar-25,
Cora's Choice |
| John Watson | Bunbury
26-Nov-17,
River Justice |
| John Wearing | Oakley
11-May-24,
Runinscared |
| John Whalen | Woodbine
13-Dec-24,
Key Stroke |
| John Wheeler | Hawera
27-Feb-26,
Tranzed |
| John Whitelaw | bet365 Benalla
17-Dec-22,
Vancouver Express |
| John Whyte | |
| John Wiese | Fairmount Park
22-Oct-25,
Smooth N Silky |
| John Wiggins | Toowoomba
19-Nov-16,
Mr Pennypacker |
| John Wigginton | Rockhampton
24-Feb-26,
Our Turn Now |
| John Wilcock | Aquis Park Gold Coast
22-May-19,
Court's Star |