I've heared of a native american tribe of runners, where can i get more information?

Question

I also heard they wouldn't compete in competitions

Answer 1

I believe you are talking about the Hopi.

Several Hopi ran across the U.S. into Mexico to take a stand for water rights. Running is also a traditional part of their culture from what I understand.

http://www.yesmagazine.org/article.asp?ID=1441
http://www.azcentral.com/arizonarepublic/local/articles/0302hopirun0302.html
http://www.indianz.com/News/2006/012769.asp