If not, she has another chance. If not, she is not a good candidate for breeding. If yes, she is a good candidate. If not, do not breed her unless she has produced two to three above-average performance and conformation foals. If not, you will not likely get a very good price for her foal.
Most buyers carefully scrutinize pedigrees.
If her pedigree passes, you still need to consider her reproductive ability. It may not be economical to mate older mares, especially if they have not had a foal annually for the past two years. The nature of genetics always drifts toward the average of the population. Frederick Harper, Extension Horse Specialist, University of Tennessee.