So if a minority takes the Implicitly Association Test and finds out their biased against the dominant "race" in their area, are they a Racist1, or not?

Looks like we need more "racism"s :D A common definition of racism that reflects the intuitions you bring up is "racism is prejudice plus power," (e.g., here) which isn't very useful from a decision-making point of view but which is very useful when looking at this racism as a functional thing experienced by the some group.