Track Bias
Frequently asked questions
What is track bias?
Track bias is a course's tendency to favour certain runners regardless of ability — for example a particular draw, running style or section of the track performing better under given conditions.
What is draw bias?
Draw bias is when a horse's stall (starting) position affects its chance — common in sprints, where low or high draws can hold a measurable edge at some courses. Draw bias explained, with worked examples →
How is draw bias measured here?
We group every historic runner by where its stall sat within its race's field — the low, middle or high third — and show each group's win rate by course and distance band, with the runs behind each figure. Going is shown separately; the draw figures are not split by going.
Does the AI account for track bias?
Yes — one scoring variant weights draw position directly, and each course profile surfaces its bias so you can factor it in. See the methodology.