| Horse | Runs* | DOB | DOB rate | Wins | Beaten but hit ½ | Last run |
|---|---|---|---|---|---|---|
| Oakley | 9 | 6 | — | 3 | 3 | 18 Jul 2026 |
| Oasis Cover | 11 | 4 | — | 0 | 4 | 15 Sep 2026 |
| Oasis Sunrise | 16 | 5 | — | 3 | 2 | 27 Sep 2026 |
| Obelix | 9 | 2 | — | 1 | 1 | 9 Oct 2026 |
| Obito | 8 | 3 | — | 1 | 2 | 19 Oct 2026 |
| Ocean Echo | 9 | 2 | — | 0 | 2 | 28 Oct 2026 |
| Ocean Force | 8 | 1 | — | 0 | 1 | 19 Oct 2026 |
| Ocean Heights | 12 | 3 | — | 1 | 2 | 19 Oct 2026 |
| Ocean Of Dreams | 8 | 4 | — | 1 | 3 | 23 Oct 2026 |
| Ochtar Againn | 9 | 2 | — | 0 | 2 | 5 Oct 2026 |
| October Hill | 13 | 5 | — | 1 | 4 | 7 Nov 2026 |
| Ode To Joy | 8 | 3 | — | 0 | 3 | 13 May 2026 |
| Off Spin | 14 | 6 | — | 2 | 4 | 4 Nov 2026 |
| Off The Jury | 8 | 5 | — | 3 | 2 | 6 Nov 2026 |
| Offiahs Boy | 11 | 3 | — | 0 | 3 | 29 Sep 2026 |
| Ogrady Cracker | 8 | 2 | — | 2 | 0 | 24 Sep 2026 |
| Ogradys Hill | 8 | 4 | — | 0 | 4 | 20 May 2026 |
| Oh Cecelia | 10 | 3 | — | 2 | 1 | 22 Jul 2026 |
| Oh So Charming | 10 | 2 | — | 1 | 1 | 23 Oct 2026 |
| Oh So Perfect | 10 | 3 | — | 2 | 1 | 3 Nov 2026 |
| Oj Lifestyle | 8 | 3 | — | 1 | 2 | 10 Sep 2026 |
| Okami | 8 | 3 | — | 2 | 1 | 2 Apr 2026 |
| Okiru | 12 | 3 | — | 0 | 3 | 2 Aug 2026 |
| Oman | 15 | 4 | — | 3 | 1 | 8 Oct 2026 |
| Omoore Park | 8 | 4 | — | 1 | 3 | 24 Oct 2026 |
| On Key | 21 | 8 | — | 1 | 7 | 27 Oct 2026 |
| On The Bubble | 13 | 5 | — | 0 | 5 | 7 Nov 2026 |
| On The Inlet | 8 | 2 | — | 1 | 1 | 5 Oct 2026 |
| On The River | 10 | 3 | — | 0 | 3 | 7 Nov 2026 |
| One And Gone | 14 | 7 | — | 3 | 4 | 19 Aug 2026 |
| One Cool Bear | 13 | 3 | — | 1 | 2 | 30 Oct 2026 |
| One Cool Dreamer | 9 | 4 | — | 0 | 4 | 11 Oct 2026 |
| One Million Dreams | 10 | 1 | — | 0 | 1 | 21 Jul 2026 |
| One More Bottle | 9 | 3 | — | 0 | 3 | 26 Oct 2026 |
| One Night Thunder | 9 | 1 | — | 1 | 0 | 8 Oct 2026 |
| One Of Our Own | 9 | 1 | — | 1 | 0 | 26 Oct 2026 |
| Oneforgonzo | 12 | 6 | — | 1 | 5 | 6 Oct 2026 |
| Onefortheditch | 8 | 1 | — | 1 | 0 | 5 Nov 2026 |
| Oneforthegutter | 9 | 2 | — | 0 | 2 | 5 Nov 2026 |
| Oneinthewell | 11 | 2 | — | 1 | 1 | 25 Sep 2026 |
| Onemorenomore | 8 | 2 | — | 1 | 1 | 5 Jul 2026 |
| Only Dream Big | 13 | 4 | — | 2 | 2 | 22 Sep 2026 |
| Only For Our Man | 11 | 5 | — | 2 | 3 | 25 Oct 2026 |
| Only One Scobie | 12 | 4 | — | 2 | 2 | 2 Sep 2026 |
| Ontheropes | 8 | 1 | — | 0 | 1 | 14 Apr 2026 |
| Onyeisi | 13 | 4 | — | 0 | 4 | 4 Nov 2026 |
| Oogum Boogum | 14 | 4 | — | 1 | 3 | 26 Sep 2026 |
| Opal Storm | 18 | 6 | — | 4 | 2 | 20 Oct 2026 |
| Operation Gimcrack | 9 | 6 | — | 3 | 3 | 19 Sep 2026 |
| Opposite Ends | 9 | 2 | — | 1 | 1 | 26 Sep 2026 |
| Optician | 11 | 6 | — | 2 | 4 | 5 Nov 2026 |
| Or Another | 8 | 3 | — | 0 | 3 | 27 Oct 2026 |
| Orandi | 8 | 2 | — | 2 | 0 | 17 Oct 2026 |
| Orange Emperor | 10 | 2 | — | 0 | 2 | 2 Nov 2026 |
| Orbital Chime | 16 | 4 | — | 1 | 3 | 16 Oct 2026 |
| Oriental Prince | 13 | 4 | — | 1 | 3 | 23 Oct 2026 |
| Ormolulu | 9 | 1 | — | 0 | 1 | 5 Nov 2026 |
| Orne | 8 | 4 | — | 0 | 4 | 2 Sep 2026 |
| Oro Blanco | 10 | 3 | — | 2 | 1 | 6 Nov 2026 |
| Ossifer Hops | 8 | 4 | — | 0 | 4 | 13 May 2026 |
| Ottawa | 8 | 2 | — | 1 | 1 | 27 Oct 2026 |
| Ottoman | 12 | 5 | — | 2 | 3 | 3 Nov 2026 |
| Our Absent Friends | 22 | 9 | — | 3 | 6 | 16 Oct 2026 |
| Our Fella | 8 | 3 | — | 0 | 3 | 11 Sep 2026 |
| Ouro Preto | 8 | 2 | — | 0 | 2 | 25 Sep 2026 |
| Out On Friday | 8 | 6 | — | 0 | 6 | 27 Sep 2026 |
| Out On Her Own | 8 | 3 | — | 0 | 3 | 18 Oct 2026 |
| Over Spiced | 16 | 5 | — | 2 | 3 | 29 Oct 2026 |
| Overbudget | 9 | 3 | — | 2 | 1 | 26 Oct 2026 |
| Oviedo | 9 | 5 | — | 1 | 4 | 13 Oct 2026 |
| Oxford Circus | 13 | 4 | — | 3 | 1 | 6 Nov 2026 |
| Ozat | 8 | 4 | — | 0 | 4 | 9 Oct 2026 |