9. Big Sur International Marathon
More than 12,000 runners from different countries participate
in this challenging annual event which was named into U.S.
Top three marathons by Runner’s World. It was also named
as the most scenic marathon as its course passes through
spectacular landscapes in California. The course record
was set back in 1987 by Brad Hawthorne at 2:16:39 and it
still stands today. The only downside for this event is that it
is not a Boston qualifying event yet. But there are plans to
make it so soon!