221.1. Subject to sections 216 to 220, the post positions following the scratching of a horse that was to participate in the race shall be determined as follows:(1) where a horse starting on the first line is scratched, its scratching shall have no impact on the position of horses starting in the second line;
(2) where a horse from either starting line is scratched, the horses that are outside the starting position of the scratched horse shall fill the gap by moving towards the inside of the racing strip.