What the pattern suggests
Doncaster's round mile is rarely used now, with the straight mile preferred instead, so there is very little data to go on. However, what data there is produces an interesting result: high numbers appear to be favoured, meaning horses drawn on the inside are at a disadvantage. This actually correlates with the straight-mile analysis, where runners coming from wide draws head towards the stands side, which appears to be quicker ground than the inside.
How to read the chart
Each mark represents a winning stall number plotted against the total number of runners. This reveals whether winners repeatedly cluster towards the low, middle or high side.
The source chart covers horses aged three and older in handicaps from 2024–2025.
Stall-numbering note: Stalls at Doncaster are always positioned on the inside of the track.
Historical winning-stall chart
|
WINNING STALL NUMBER |
|||||||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | ||
| No
of R U N N E R S |
8 | 1 | 1 | 1 | 1 | 11 | 111 | ||||||||||||||
| 9 | x | 1 | 1 | 1 | 1 |
H'caps Only 2024 - 2025 |
|||||||||||||||
| 10 | |||||||||||||||||||||
| 11 | 1 | 1 | 1 | ||||||||||||||||||
| 12 | 1 | 11 | |||||||||||||||||||
| 13 | 1 | 1 | 1 | ||||||||||||||||||
| 14 | 1 | ||||||||||||||||||||
| 15 | |||||||||||||||||||||
| 16 | 1 | ||||||||||||||||||||
| 17 | 1 | ||||||||||||||||||||
| 18 | 1 | ||||||||||||||||||||
| 19 | 1 | ||||||||||||||||||||
| 20 | 1 | ||||||||||||||||||||
| 3 | 0 | 1 | 2 | 1 | 0 |
|
1 | 1 | 1 | 0 | 2 | 7 | |||||||||
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|
|
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How to use the bias
- Pace: identify where the likely early leaders are drawn and which runners can secure a good position.
- Going: consider whether the inside or outside is riding faster on the day.
- Field size: draw effects are often more meaningful when runners are crowded into larger fields.
- Recent evidence: rail movements, watering and weather can alter the effective bias.
Conclusion
They rarely use the round mile at Doncaster anymore preferring to use the straight mile, and therefore there is very little data to go on. However with the little data we have their is an interesting result, with high numbers appearing to be favoured, meaning the horses on the inside are at a disadvantage. This actually correlates with the results of the straight mile analysis, in that horses coming wide will come down the stands side, which would appear to be a quicker piece of ground than the inside.