Circuit Breaker (2020) Horse
Foal Date
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Dam
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About
Circuit Breaker is a six-year-old bay gelding by Nathaniel out of Australian Queen. He is in the care of trainer J & A O'Neill and owned by Tanzanite. Over 29 starts he has won three races, placed three seconds and six thirds, accumulating total earnings of $91,818. His most recent start came at Haydock on 25 September 2026, where he finished 3rd of 10 runners. His last victory was at Kempton on 20 October 2024.
Raced At
Haydock • Lingfield • Carlisle • Wolverhampton • Market Rasen • Southwell • Musselburgh • Kempton • Salisbury • Doncaster • Windsor • Dundalk • Limerick • Listowel • KillarneyRace Record
| Event Summary | Runner Stats | Rank |
|---|---|---|
| Haydock 25-Sep-26 2816m SOFT CL5 Flat, SP: 5/1 Midfield, ridden over 3f out, headway over 1f out, kept on and took third inside final furlong | Cieren Fallon 60.3kg 1 3/4 length | 3 (10) |
| Lingfield 18-Aug-26 3172m STANDARD CL5 Flat, SP: 1/1 Led, pushed along well over 1f out, ridden and headed approaching final furlong, soon weakened | Mr Simon Walker 70.8kg 3 1/4l | 4 (7) |
| Carlisle 15-Jun-26 2846m GOOD R4 CL5 Hcp $491 (of $7,870) Barrier 1, Winning Time: 03:09.450, SP: 5.50 1st Trojan Sun ( P Mulrennan 131 ) 2nd So Alex ( J Doughty 134 ) 0.75L 3rd Dance Time ( W Pyle 132 ) 1.25L 4th Circuit Breaker ( D Tudhope 132 ) 2.50L See full results | D Tudhope 59.9kg 2.50L | 4 (14) |
| Ascot 08-May-26 3209m GOOD R7 CL4 Hcp (of $25,231) Barrier 7, Winning Time: 03:28.530, SP: 17.00 1st Believitanducan ( L Catton 133 ) 2nd Naval Tribute ( C Howarth 134 ) 1.25L 3rd Calvert ( T Langley 133 ) 0.50L 6th Circuit Breaker ( H Burns 134 ) 7.50L See full results | H Burns 60.8kg 7.50L | 6 (13) |
| Lingfield 03-Apr-26 3172m SYNTHETIC R2 CL4 Hcp $6,045 (of $49,185) Barrier 14, Winning Time: 03:20.980, SP: 19.00 1st Arc Zoosve ( M Ghiani 121 ) 2nd Shrimp Shady ( R Hornby 133 ) 2.25L 3rd Circuit Breaker ( K Shoemark 130 ) 4.50L See full results | K Shoemark 59kg 4.50L | 3 (14) |
| Wolverhampton 04-Mar-26 2815m SYNTHETIC R1 CL4 Hcp (of $9,345) Barrier 2, Winning Time: 03:00.100, SP: 12.00 1st Shrimp Shady ( R Hornby 136 ) 2nd Calvert ( L Edmunds 132 ) 0.00L 3rd Robusto ( B Loughnane 137 ) 0.20L 6th Circuit Breaker ( C Fallon 135 ) 6.25L See full results | C Fallon 61.2kg 6.25L | 6 (9) |
| Market Rasen 01-Feb-26 4641m SOFT R4 CL4 HcpH (of $10,820), SP: 11.00 1st Gold In The Rivers ( J Tudor 159 ) 2nd Secret Trix ( A Weaver 165 ) 1.75L 3rd Ramo ( C Deutsch 160 ) 1.75L 6th Circuit Breaker ( K Brogan 156 ) 32.00L See full results | K Brogan 70.8kg 32.00L | 6 (8) |
| Wolverhampton 06-Jan-26 3328m STANDARD CL5 Flat, SP: 5/2 Led early, headed after 2f, steadied to race in third, pushed along and chased winner from 2f out, kept on but no impression towards finish | Jack Dace 63.5kg 1/2 length | 2 (6) |
| Wolverhampton 30-Dec-25 2815m STANDARD CL5 Flat, SP: 9/2 Took keen hold, led, driven over 2f out, kept on over 1f out, diminishing advantage and headed near finish | Jack Dace 64.4kg 1 length | 2 (8) |
| York 11-Oct-25 3270m GOOD CL4 Flat, SP: 20/1 Restless in stalls, tracked leader, led after 2f, led field centre in straight, headed over 3f out, chased leaders, weakened inside final 2f | Ray Dawson 60.3kg Neck | 9 (16) |
| Newcastle 18-Apr-25 3270m STANDARD CL2 Flat, SP: 28/1 Chased leaders, pushed along well over 2f out, soon weakened tamely | J Fanning 52.6kg 1 1/2 length | 11 (14) |
| Southwell 28-Mar-25 3312m STANDARD CL4 Flat, SP: 6/1 Led, set sedate tempo, ridden home turn, headed over 2f out, weakened final furlong | Cieren Fallon 63.5kg 4 1/2l | 6 (8) |
| Wolverhampton 15-Mar-25 2815m STANDARD CL2 Flat, SP: 11/2 Led, headed 8f out, pushed along 3f out, weakened final furlong | Cieren Fallon 58.5kg 1 1/2 length | 5 (5) |
| Southwell 22-Feb-25 3312m STANDARD CL3 Flat, SP: 11/1 Held up in mid-division, headway on outside over 6f out, led over 5f out, headed over 3f out, kept on final furlong | Cieren Fallon 63.5kg 1 1/2 length | 3 (9) |
| Musselburgh 02-Feb-25 3979m GOOD TO SOFT CL4 Hurdle, SP: 14/1 Led, joined 2nd, soon clear led again, ridden headed approaching 3 out, weakened quickly from 2 out | Jonjo O'Neill Jr. 76.2kg 1/2 length | 8 (10) |
| Ascot 21-Dec-24 4735m GOOD TO SOFT (SOFT IN PLACES) CL4 Hurdle, SP: 16/1 Held up towards rear, not fluent 3 out, weakened before 2 out | Jonjo O'Neill Jr. 75.8kg 50l | 5 (6) |
| Haydock 04-Dec-24 3149m SOFT (HEAVY IN PLACES) CL2 Hurdle, SP: 15/2 Chased winner, held when hit 2 out, lost second approaching last | Jonjo O'Neill Jr. 73kg 7l | 3 (6) |
| Kempton 20-Oct-24 4225m GOOD CL4 Hurdle, SP: 7/2 Chased leader on inside, hard ridden home turn, led approaching 2 out, clear last, ridden out flat | Jonjo O'Neill Jr. 68.9kg | 1 (4) |
| Salisbury 16-May-24 2857m SOFT CL3 Flat, SP: 15/2 Tracked leaders, pushed along 3f out, weakened 2f out | Cieren Fallon 61.7kg 1 1/2 length | 6 (12) |
| Kempton 06-Apr-24 3217m STANDARD / SLOW CL2 Flat, SP: 5/1 Sweating, tracked leaders, ridden inside final 2f, soon unable to quicken, plugged on in 3rd inside final furlong, no chance with winner | James Doyle 58.5kg 1 3/4 length | 3 (13) |
| Haydock 29-Sep-23 2816m SOFT (HEAVY IN PLACES) CL3 Flat, SP: 3/1 Handy on outside, led going well over 1f out, ridden and headed final 100 yards, kept on | H Crouch 61.2kg 1 length | 2 (5) |
| Kempton 09-Sep-23 3217m STANDARD / SLOW CL4 Flat, SP: 7/2 Prominent, led over 2f out, soon ridden, stayed on well final furlong | H Crouch 59kg | 1 (8) |
| Hamilton 15-Jul-23 2630m SOFT (HEAVY IN PLACES) CL4 Flat, SP: 10/3 Led, ridden and headed 2f out, weakened final furlong | Shane Gray 58.5kg 3l | 7 (7) |
| Doncaster 02-Jun-23 2393m GOOD TO FIRM (GOOD IN PLACES) CL5 Flat, SP: 10/3 Tracked leading pair, carried left over 2f out, weakened soon after | Rossa Ryan 62.1kg 6 1/2l | 3 (5) |
| Windsor 08-May-23 2012m SOFT CL5 Flat, SP: 2/1 Prominent, headway to chase leader 4f out, pressed leader 3f out, soon pushed along, led over 1f out, stayed on well inside final furlong, readily | Rossa Ryan 57.6kg | 1 (8) |
| Dundalk 11-Nov-16 1408m STANDARD Flat, SP: 25/1 Towards rear, ridden under 2f out, no impression in 11th 1f out, kept on same pace | Gary Carroll 56.7kg 3 | 8 (14) |
| Limerick 03-Oct-16 1609m SOFT (SOFT TO HEAVY IN PLACES) Flat, SP: 66/1 Always towards rear, ridden and no impression 2 1/2f out | Gary Carroll 59.4kg 1.75 | 13 (15) |
| Listowel 15-Sep-16 1609m HEAVY Flat, SP: 9/1 Tracked leaders on outer, ran freely, 4th halfway, pushed along and no extra 2f out, weakened | Billy Lee 59.4kg 8 | 7 (8) |
| Killarney 17-Aug-16 1673m GOOD TO FIRM Flat, SP: 12/1 Chased leaders, 7th halfway and soon pushed along, ridden to go moderate 5th 1f out, kept on one pace inside final furlong | Gary Carroll 59.4kg 9 | 4 (8) |