A racer or a jockey.
Well I would assume that since people of two races are called BIracial, then people of three races are called TRIracial.
The person is called a Marshal.
multiracial or of multiple races
A member of the pit crew.
I believe the person who rides the horses in the races is called a Jockey.
No.Only a person that races horses professionally is called a jockey.
longboard races
A person who rides horses (mainly thoroughbreds) is called a Jockey
The gun used in running races is called a starter's pistol.
Oaks are races for fillies or mares
motorcycle races!! each individual race is called a moto
regatta