| John Boegner | Lone Star Park
15-Nov-25,
Gladiator |
| John Booker | Kempsey
08-Nov-19,
Mymatemitch |
| John Borham | Moruya
23-Jan-26,
Devgru |
| John Bourke | Moree
17-Dec-22,
Charming Sam |
| John Bowtell | Pinjarra Park
15-Jun-17,
It's All an Act |
| John Braithwaite | Strathalbyn
02-Jun-11,
PULSING |
| John Brennan | Wangaratta
06-Dec-16,
Rhonda in Paris |
| John Brooks | Terang
19-Apr-26,
King Of Hearts |
| John Brown | Mountaineer
22-Apr-26,
Romantic Jewel |
| John Byrne | Kilcoy
20-Dec-19,
Backup Billy |
| John C. Carlisle | Charles Town
07-Feb-26,
Oso |
| John C. Ivory | Santa Anita
04-Apr-26,
Mperfection |
| John C. Kimmel | Aqueduct
08-Mar-26,
Protected |
| John C. Servis | Keeneland
20-Apr-26,
Fifteen Over |
| John C. Wainwright | Fairmount Park
29-Apr-26,
Coaly |
| John Cane | York
06-Apr-26,
Incandescent Lady |
| John Cannon | Thistledown
03-Jul-25,
Riesenberg |
| John Carlisle | Charles Town
29-Jun-25,
Eccentric |
| John Carlo Iuele | Gawler
06-Jan-16,
Bowtale |
| John Castleman | Mildura
12-Mar-17,
Arandom |
| John Charalambous | Woodbine
19-May-25,
Boston Tea Party |
| John Chilcott | Ascot
13-Dec-14,
Rubykon Lass |
| John Collison | Dubbo
12-Jan-26,
Battle Reign |
| John Coolahan | Echuca
03-Aug-09,
INVASIVE ROSE |
| John Cooper | Beaumont
15-Jan-26,
Listins Lass |
| John Cornell | Port Augusta
09-Apr-17,
Belgietto |
| John Corriveau | Thistledown
15-Oct-25,
Rivers Angel |
| John Cortez | Los Alamitos Racecourse
05-Jul-25,
Carver |
| John Coryat | Woodbine
17-May-25,
Six For A Nine |
| John Cox | Oaklawn Park
03-May-25,
Quick Buck |
| John Crane | Rockhampton
28-Feb-19,
I Trust Layla |
| John Croucher | Balaklava
18-Jun-25,
Prance 'N' Dance |
| John Cullen | Punchestown
12-Jan-26,
Cornmarket |
| John D Pearson | Echuca
16-Apr-26,
Minesite |
| John D. Hammes | Remington Park
27-Apr-26,
If Not Me Who |
| John Dann | Doomben
15-Apr-26,
Rhuvaal |
| John Dawson | Kelso
03-Apr-26,
Don't Tell Dougie |
| John Delahunty | Oakley
11-May-24,
Lanzoffany |
| John Dieckmann | Toowoomba Cushion Track
21-May-11,
Ramani |
| John Dillow | Charles Town
13-Oct-23,
Wicked Wisdom |
| John Doyle | Pinjarra
08-Apr-26,
Pointless Praise |
| John Dunn & Krystal Bishop | Port Augusta
26-Apr-26,
Dragon Fish |
| John Durston | Rockhampton
09-Apr-22,
Duble Gaze |
| John E & Kiely | Thurles
31-Oct-25,
Joyeux Vivo |
| John E. Norwood, Jr. | Lone Star Park
17-Oct-25,
Cryptonyte |
| John E. Salzman, Jr. | Laurel Park
27-Apr-26,
Weather Beater |
| John E. Worsley | Laurel Park
27-Apr-26,
Lost My Shoe |
| John East | Orange
12-Apr-13,
Witch's Honour |
| John Eaton | Kalgoorlie
02-Nov-19,
Chantego Star |
| John Edmunds | Toowoomba
20-Dec-25,
Nienna |
| John Ennis | Churchill Downs
29-Apr-26,
Hayes Goal |
| John Erdel | Mahoning Valley
10-Apr-26,
Beautiful Mandate |
| John Everson | Doomben
14-Oct-17,
Al Shameel |
| John F O'Neill | Kilbeggan
25-Apr-26,
Phoenix Arizona |
| John F. Hill, Jr. | Keeneland
23-Apr-26,
J David |
| John Fahey | Caloundra
09-Oct-09,
ELTON'S SON |
| John Fairleigh | Muswellbrook
23-May-21,
Gerwig |
| John Fennessy | Tampa Bay Downs
27-Apr-26,
Starship Legacy |
| John Ferguson | Gatton
01-Mar-26,
My Turn Astern |
| John Fitzgerald | Kilmore
18-Apr-26,
O'Reg |