This may sound really weird but they are called a starter. They can either shoot a pistol or wave a flag. Hope that helped!! (: :):)
starter person
A person that starts a race and finishes it.
Racist
starter
The Pole Sitter. I believe they're called a "Flagman/person"
An ace or an idol or a hero :)
A glazier.
Funnily enough, they are called a starter.
loquacious
The same as you would with any other race: Preacher
I believe the person who rides the horses in the races is called a Jockey.
The lead runner .