Overview
Track bias is the idea that some parts of a racecourse, or some positions in running, may have performed better than others under particular conditions. It is not a permanent characteristic of a venue. Distance, rail position, going, field size and the pace of individual races can all matter.
The strongest analysis starts with a precise question. Instead of asking whether Caulfield favours leaders, ask whether leaders at Caulfield over a particular distance performed differently with the rail true versus out. Compare runners, wins, win rates, ROI and A2E, and consider how many meetings contributed to the result.