Is there a draw bias at Chelmsford (AW)?
Yes, in places. Across 865 races from 2023-06-01 to 2026-06-09: over 5-6f — strong: low (inside) favoured (iv 1.24); over 7-8f — moderate: low (inside) favoured (iv 1.11); over 9-12f — strong: low (inside) favoured (iv 1.28). Check the A/E column before betting it: a bias the market already prices in is not an edge.