Originally Posted by Ilene
Just Google it ... I just Googled "Ontario 10K races" because I live in Ontario and it gave me a whole bunch or races in Ontario Canada...
That's what I do too. I usually will get several relevant hits. We have two major race organizers in the city, plus the calendar of downtown events, and often the organization that benefits from a run as well.
Also, if you have a running store near you, races may be posted there as well.