The inclination to run in (or out) during a race. When hanging in, a horse will have a tendency to veer towards the inside running rail or fence, while when hanging out, a horse will have a tendency to veer towards the outside running rail. A horse that is hanging will often check other runners which happen to be in its path.
when a horse does not run straight as it comes under pressure during a race, usually at the finish. The jockey must make all endeavours to ensure his mount runs in a straight line. Horse: term used to describe a male horse four years or older.