Bobble/Stumble
A slip or a duck from a horse trying to leave the starting gates, often caused by the surface giving way under the feet. This can range from a mild misstep to a stumble down to their knees.
Firm
A dry turf course, equal to a ‘fast’ dirt track.
Exercise Rider
A rider built much like a jockey but is employed for exercising and working out horses in the morning.

