The course was to blame.
One Canadian researcher is trying to find the answer to that question.
He is making a comeback after dropping out of New York last year.
He will be competing in the Toronto Marathon this October.
He wants to be the first Canadian in the Olympics since 2000.
He immigrated to Canada penniless.
He had planned on racing a 10K on Sunday.
One says run the course in advance if possible.
Countries winning the race in streaks has been happening since its inception.